# ESP32 Open IoT and IIoT Gateways # Data Sheet ## ESP32 Open IoT and IIoT Gateways (P01 & P02) Open IoT Gateway is also called as a PAC (Programmable Automation Controller). PAC products combine the functionality and openness of a PC, the reliability of a programmable logic unit like PLC and the intelligence of I/O modules with flexible software tools for a wide range of applications from data acquisition, process control, motion control to energy and building management. Our PAC family includes FreeRTOS PACs and MicroPython PACs for different requirements in OS, CPU and development platform. The P01 and P02 Gateways are based on **ESP32 Xtensa LX6**.
**P01 P02** **[![5e0098af-74b7-4f6a-84e2-63efb7875497 (1).png](https://doc.redisage.com/uploads/images/gallery/2024-04/scaled-1680-/5e0098af-74b7-4f6a-84e2-63efb7875497-1.png)](https://doc.redisage.com/uploads/images/gallery/2024-04/5e0098af-74b7-4f6a-84e2-63efb7875497-1.png)** **Features** - Open IoT gateway - ESD protection for the RS485 data line - Power supply: +12 to +30 VDC - Transmission speed up to 115200 bps - Tx, Rx and power LED indicators - RS485 embedded termination 120 ohm - Optional WiFi - Operating temperatures: -40°C to +75°C - DIN-rail mounting - Dimensions: 90x56.4x22.5 mm - 3 years warranty - Customization of OEM is welcomed
### Specifications‎‎‎
**Redisage PN** **P01** **P02**
Ports RS232 - -
RS485 - -
RS232/RS485 2x 2x
Microcontroller ESP32
WiFi N/A 802.11 b/g/n 150 Mbps / 2.4 GHz
Bluetooth N/A v4.2 BR/EDR and BLE
SMA socket connector for WiFi/BT antenna ![:x:](https://pf-emoji-service--cdn.us-east-1.prod.public.atl-paas.net/standard/caa27a19-fc09-4452-b2b4-a301552fd69c/32x32/274c.png) ![:white_check_mark:](https://pf-emoji-service--cdn.us-east-1.prod.public.atl-paas.net/standard/caa27a19-fc09-4452-b2b4-a301552fd69c/32x32/2705.png)
Tactile switch ![:white_check_mark:](https://pf-emoji-service--cdn.us-east-1.prod.public.atl-paas.net/standard/caa27a19-fc09-4452-b2b4-a301552fd69c/32x32/2705.png) ![:x:](https://pf-emoji-service--cdn.us-east-1.prod.public.atl-paas.net/standard/caa27a19-fc09-4452-b2b4-a301552fd69c/32x32/274c.png)
Power Voltage 12-30 VDC
Power < 1 W
Frame ground protection yes
Baud rate up to 115200 bps
LED indicators power, link activity, programmable RGB
RS485 termination 120 ohm manually enabled
Connector RS232/RS485 8-pin terminal block max. 2.5 mm2 wire
Power 3-pin terminal block max. 2.5 mm2 wire
Ethernet RJ45
Transmission distance RS485 max. 1,200 m at 9.6 kbps; max. 400 m at 115.2 kbps (Belden 9841 2P twisted-pair cable, if different cables are used, the transmission distance may change)
RS232 max. 15 m at 115.2 kbps
Mounting and enclosure DIN rail, plastic PA - UL 94 V0, black/green
Temperatures -40°C to +75°C operating and storage
Humidity 10 - 90% RH, non-condensing
ESD protection ±4 kV contact discharge / ±8 kV air discharge
Certification CE, RoHS, EMC, LVD
Norms 61000-6-2 - Immunity standard for industrial environments 61000-6-4 - Emission standard for industrial environments
### Variants #### P01 - Open IoT and IIoT Gateway 2 x RS232/RS485

In the P01 gateway user should use only RS232 or only RS485 interface of one port as they occupy the same internal bus of the device.

#### P02 - Open IoT and IIoT Gateway 2 x RS232/RS485 + WiFi

In the P02 gateway user should use only RS232 or only RS485 interface of one port as they occupy the same internal bus of the device.

### Frame ground FG Electronic circuits are constantly prone to electrostatic discharge ESD. Redisage Electronics modules feature a design for the frame ground terminal block FG. The frame ground provides a path for bypassing ESD, which provides enhanced static protection ESD abilities and ensures the module is more reliable. Connecting FG terminal block to the earth ground will bypass the ESD disturbances outside the device so will provide a better level of protection against ESD. Frame Ground FG connection reference drawing is provided below.
If earth ground is not available FG can be left floating or it can be connected with the power supply GND. ### Pin assignments
**P01** [![P01 Name Plate Label v1 #1099.png](https://doc.redisage.com/uploads/images/gallery/2024-06/scaled-1680-/p01-name-plate-label-v1-1099.png)](https://doc.redisage.com/uploads/images/gallery/2024-06/p01-name-plate-label-v1-1099.png) **P02** [![P02 Name Plate Label v1 #1098.png](https://doc.redisage.com/uploads/images/gallery/2024-06/scaled-1680-/p02-name-plate-label-v1-1098.png)](https://doc.redisage.com/uploads/images/gallery/2024-06/p02-name-plate-label-v1-1098.png)
### Enclosure dimensions 2U Module Enclosure 98 x 22.5 x 56.4 Units: mm [![image (3).webp](https://doc.redisage.com/uploads/images/gallery/2024-05/scaled-1680-/AcYimage-3.webp)](https://doc.redisage.com/uploads/images/gallery/2024-05/AcYimage-3.webp) ### LED indicators #### P01 - PW LED Blue - Power - ETH LED Green - Network activity - ST LED Red / Green / Blue - programmable LED [![image.png](https://doc.redisage.com/uploads/images/gallery/2024-06/scaled-1680-/8kQimage.png)](https://doc.redisage.com/uploads/images/gallery/2024-06/8kQimage.png) #### P02 - PW LED Blue - Power - ETH LED Green - Network activity - ST LED Red / Green / Blue - programmable LED [![image.png](https://doc.redisage.com/uploads/images/gallery/2024-06/scaled-1680-/m6yimage.png)](https://doc.redisage.com/uploads/images/gallery/2024-06/m6yimage.png) ### Additional notes
**Related information and links**
[Ordering information](https://redisage.com/en/delivery.html)[Accessories](https://redisage.com/eng_m_Accessory-174.html)[Similar products](https://redisage.com/search.php?text=+&sort=name&order=a)
### Products family sample photo
[https://redisage.com](https://redisage.com/) **DISCLAMER NOTES** ALL PRODUCT, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE TO IMPROVE RELIABILITY, FUNCTION OR DESIGN OR OTHERWISE. #### Datasheet-ID: SR-D # User Manual # Introduction {{@218}} [![03721241-0db7-42b5-aad8-857a25a30481.png](https://doc.redisage.com/uploads/images/gallery/2024-04/scaled-1680-/03721241-0db7-42b5-aad8-857a25a30481.png)](https://doc.redisage.com/uploads/images/gallery/2024-04/03721241-0db7-42b5-aad8-857a25a30481.png) If you want to get started, make sure you have complete set of: - [Tag-connect cable](https://redisage.com/en/products/p04-tc2050-idc-nl-10-pin-no-legs-cable-with-ribbon-connector-124) - [Tag-connect retaining clip board](https://redisage.com/en/products/p05-tc2050-clip-3pack-retaining-clip-board-for-tc2050-nl-cables-3-pack-125) (optional) - Open IoT and IIoT Gateway - [USB Programmer](https://redisage.com/en/products/pac-iot/procesing-unit-cpu/esp32/p03-usb-programmer-for-esp32-p01-p02-open-gateways-ftdi-39.html) [![c151dd12-f0ae-47d7-b01b-a1520c0afbba (1).png](https://doc.redisage.com/uploads/images/gallery/2024-04/scaled-1680-/c151dd12-f0ae-47d7-b01b-a1520c0afbba-1.png)](https://doc.redisage.com/uploads/images/gallery/2024-04/c151dd12-f0ae-47d7-b01b-a1520c0afbba-1.png) # Hardware ## {{@218#bkmrk-open-iot-and-iiot-ga}} ### Features
**Features** [![5e0098af-74b7-4f6a-84e2-63efb7875497 (1).png](https://doc.redisage.com/uploads/images/gallery/2024-04/scaled-1680-/5e0098af-74b7-4f6a-84e2-63efb7875497-1.png)](https://doc.redisage.com/uploads/images/gallery/2024-04/5e0098af-74b7-4f6a-84e2-63efb7875497-1.png)
Open IoT gateway
ESD protection for the RS485 data line
Power supply: +12 to +30 VDC
Transmission speed up to 115200 bps
Tx, Rx and power LED indicators
RS485 embedded termination 120 ohm
Optional WiFi
Operating temperatures: -40°C to +75°C
DIN-rail mounting
Dimensions: 90x56.4x22.5 mm
**3 years warranty**
**Customization of OEM is welcomed**
{{@169}} ### {{@190#bkmrk-specifications%E2%80%8E%E2%80%8E%E2%80%8E}} {{@190#bkmrk-redisage-pn-p01-p02-}} ### LED indicators
**Gateway P01** **Gateway P02**
[![image.png](https://doc.redisage.com/uploads/images/gallery/2024-06/scaled-1680-/8kQimage.png)](https://doc.redisage.com/uploads/images/gallery/2024-06/8kQimage.png)[![image.png](https://doc.redisage.com/uploads/images/gallery/2024-06/scaled-1680-/m6yimage.png)](https://doc.redisage.com/uploads/images/gallery/2024-06/m6yimage.png)
**LED indicator****Color****Function****LED indicator****Color****Function**
PWBluePowerPWBluePower
ETHGreenNetwork activityETHGreenNetwork activity
STRed / Green / BlueProgrammable LEDSTRed / Green / BlueProgrammable LED
### {{@190#bkmrk-pin-assignments}} {{@190#bkmrk-p01-%C2%A0-p02-%C2%A0}} ### Board overview [![1e6588f9-6051-4dc4-b380-0d4c5910c79c (1).png](https://doc.redisage.com/uploads/images/gallery/2024-04/scaled-1680-/1e6588f9-6051-4dc4-b380-0d4c5910c79c-1.png)](https://doc.redisage.com/uploads/images/gallery/2024-04/1e6588f9-6051-4dc4-b380-0d4c5910c79c-1.png) The complete Open IoT and IIoT Gateway kit consists of: - developer module - RJ45 network adapter - hardware programmer [![image-4.webp](https://doc.redisage.com/uploads/images/gallery/2024-06/scaled-1680-/image-4.webp)](https://doc.redisage.com/uploads/images/gallery/2024-06/image-4.webp) #### Power input pinout [![image.png](https://doc.redisage.com/uploads/images/gallery/2024-06/scaled-1680-/ijLimage.png)](https://doc.redisage.com/uploads/images/gallery/2024-06/ijLimage.png) - **VCC** - power supply input 9-30 VDC - **GND** - power supply ground - **DI** - digital input (used while there is no button mounted and it can be shorten only to GND) - **FG** - frame ground #### Test connectors Provided test connectors can be used for board debugging.
- **GPIO\_38** - ESP32 general purpose input - **3V3** - 3.3 VDC - **I2C\_SCL,** **I2C\_SDA** - I2C connectors - **GND** - ground - **NC** - not connected - **FGC** - frame ground connector - **BUT\_EXT** - button test line (default: high state) - **Q2** - Q2 output of parallel register (74HC595BQ) - **STCP** - clock input of serial register (74HC595BQ) - **SHCP** - clock input of buffer register (74HC595BQ) - **Q7S** - output of serial register (74HC595BQ) - **CHIP\_PU** - chip power up line ('1' - powers chip up) #### Button / antenna The antenna connector can be replaced with a button which can be used for, for example, restoring device to the default configuration, saved in EEPROM. [![image-30.webp](https://doc.redisage.com/uploads/images/gallery/2024-06/scaled-1680-/image-30.webp)](https://doc.redisage.com/uploads/images/gallery/2024-06/image-30.webp)

In order to use the button instead of the antenna, the R52 resistor (near the microUSB connector, on the bottom side) has to be soldered to the board.

#### RS232 ports The device has 2 independent RS485 ports. [![image.png](https://doc.redisage.com/uploads/images/gallery/2024-06/scaled-1680-/1qnimage.png)](https://doc.redisage.com/uploads/images/gallery/2024-06/1qnimage.png) #### RS485 ports The device is equipped with two MAX481 transceivers that enable communication in the RS485 standard on two channels independently. [![image.png](https://doc.redisage.com/uploads/images/gallery/2024-06/scaled-1680-/Ei3image.png)](https://doc.redisage.com/uploads/images/gallery/2024-06/Ei3image.png)

As the RS485\_1 / RS232\_1 and RS485\_2 / RS232\_2 standards use common microcontroller serial ports, it is possible to use only 1 interface from the pair at a time.

#### ETHERNET In order to support the Ethernet network interface communication, the network adapter available in the kit must be installed on the module (pay attention to its correct installation). This interface is supported by the external IP101G physical layer which communicates with the ESP32 microcontroller. [![image-33.webp](https://doc.redisage.com/uploads/images/gallery/2024-06/scaled-1680-/image-33.webp)](https://doc.redisage.com/uploads/images/gallery/2024-06/image-33.webp) #### Programming The device can be programmed only with the external hardware programmer connected via Tag-Connect connector. [![image-6.webp](https://doc.redisage.com/uploads/images/gallery/2024-06/scaled-1680-/image-6.webp)](https://doc.redisage.com/uploads/images/gallery/2024-06/image-6.webp) # Programming ## {{@218#bkmrk-open-iot-and-iiot-ga}} ### Install IDE Please, follow the instructions located [here](https://docs.espressif.com/projects/esp-idf/en/latest/esp32/get-started/index.html) to install the ESP-IDF framework on your local machine. ESP-IDF is available both on [Windows](https://docs.espressif.com/projects/esp-idf/en/latest/esp32/get-started/windows-setup.html) and [Linux](https://docs.espressif.com/projects/esp-idf/en/latest/esp32/get-started/linux-macos-setup.html). It can also be installed through some popular IDEs: [VS Code](https://docs.espressif.com/projects/vscode-esp-idf-extension/en/latest/) or [Eclipse](https://github.com/espressif/idf-eclipse-plugin/blob/master/README.md). ESP-IDF is required to build the examples written in C for the device. However, it can be also programmed in [MicroPython](https://docs.micropython.org/en/latest/esp32/tutorial/intro.html) ([Thonny](https://thonny.org/)). ### Connect the programmer ESP32 IoT and IIoT Gateways can be programmed only with the external hardware programmer (for example [**P03**](https://doc.redisage.com/link/219#bkmrk-page-title)) connected via the Tag-Connect connector. After connecting it to the board and a PC, a new COM port should be available.
[![image-4.webp](https://doc.redisage.com/uploads/images/gallery/2024-06/scaled-1680-/image-4.webp)](https://doc.redisage.com/uploads/images/gallery/2024-06/image-4.webp)[![image-6.webp](https://doc.redisage.com/uploads/images/gallery/2024-06/scaled-1680-/image-6.webp)](https://doc.redisage.com/uploads/images/gallery/2024-06/image-6.webp)
### Connect the power supply In order to successfully flash the device, it has to be connected to the power supply (9 - 30 VDC) using the VCC and GND connectors. [![image.png](https://doc.redisage.com/uploads/images/gallery/2024-06/scaled-1680-/EkQimage.png)](https://doc.redisage.com/uploads/images/gallery/2024-06/EkQimage.png) ### Create your own programs After all of the above steps are done, the device should be ready to be programmed. ### Build, flash and monitor the device #### VS Code ESP-IDF extension 1. Make sure that there is a ".vscode" folder in the project tree. If not, add it with the "F1" + "ESP-IDF: Add vscode Configuration Folder" command. [![image.png](https://doc.redisage.com/uploads/images/gallery/2024-06/scaled-1680-/Rpfimage.png)](https://doc.redisage.com/uploads/images/gallery/2024-06/Rpfimage.png) 2. Set your device target with "F1" + "ESP-IDF: Set Espressif Device Target". Then choose current workspace folder and then "esp32". Lastly choose "Custom board" and confirm it. [![image.png](https://doc.redisage.com/uploads/images/gallery/2024-06/scaled-1680-/GX6image.png)](https://doc.redisage.com/uploads/images/gallery/2024-06/GX6image.png) [![image.png](https://doc.redisage.com/uploads/images/gallery/2024-06/scaled-1680-/ucEimage.png)](https://doc.redisage.com/uploads/images/gallery/2024-06/ucEimage.png) [![image.png](https://doc.redisage.com/uploads/images/gallery/2024-06/scaled-1680-/RY3image.png)](https://doc.redisage.com/uploads/images/gallery/2024-06/RY3image.png) 3. Set port where the device is attached to with "F1" + "ESP-IDF: Select Port to Use (COM, tty, usbserial)". [![image.png](https://doc.redisage.com/uploads/images/gallery/2024-06/scaled-1680-/Qkkimage.png)](https://doc.redisage.com/uploads/images/gallery/2024-06/Qkkimage.png) 4. Finally select "UART" flash method with "F1" + "ESP-IDF: Select Flash Method". [![image.png](https://doc.redisage.com/uploads/images/gallery/2024-06/scaled-1680-/Aa9image.png)](https://doc.redisage.com/uploads/images/gallery/2024-06/Aa9image.png) [![image.png](https://doc.redisage.com/uploads/images/gallery/2024-06/scaled-1680-/3PAimage.png)](https://doc.redisage.com/uploads/images/gallery/2024-06/3PAimage.png) 5. Build your project, flash it to the device and open a serial monitor with the "F1" + "ESP-IDF: Build, Flash and Start a Monitor on your Device". If everything was set properly the serial monitor should open after a successful flash. [![image.png](https://doc.redisage.com/uploads/images/gallery/2024-06/scaled-1680-/PjNimage.png)](https://doc.redisage.com/uploads/images/gallery/2024-06/PjNimage.png) #### Thonny 1. Hit "F5" button in Thonny IDE to run the current script. [![image.png](https://doc.redisage.com/uploads/images/gallery/2024-06/scaled-1680-/Q0Kimage.png)](https://doc.redisage.com/uploads/images/gallery/2024-06/Q0Kimage.png) 2. Click "File" -> "Save copy..." -> "MicroPython device" and save this file as "main.py" in order to execute this code every time the gateway powers on. [![image.png](https://doc.redisage.com/uploads/images/gallery/2024-06/scaled-1680-/9OGimage.png)](https://doc.redisage.com/uploads/images/gallery/2024-06/9OGimage.png) [![image.png](https://doc.redisage.com/uploads/images/gallery/2024-06/scaled-1680-/y5yimage.png)](https://doc.redisage.com/uploads/images/gallery/2024-06/y5yimage.png) [![image.png](https://doc.redisage.com/uploads/images/gallery/2024-06/scaled-1680-/Wn4image.png)](https://doc.redisage.com/uploads/images/gallery/2024-06/Wn4image.png) # Other IDEs ## {{@218#bkmrk-open-iot-and-iiot-ga}} The device can be programmed also in other development environments. Programming gateways is supported on every popular operating systems like Windows, Linux or MAC OS. This document was prepared in reference to Windows. ### ESP-IDF framework The main tool is ESP-IDF framework provided by Espressif. To get more information about installation, visit manufacturer’s website: [Get Started - ESP32 - — ESP-IDF Programming Guide latest documentation](https://docs.espressif.com/projects/esp-idf/en/latest/esp32/get-started/). Manual Installation of ESP-IDF: [Standard Setup of Toolchain for Windows - ESP32 - — ESP-IDF Programming Guide latest documentation](https://docs.espressif.com/projects/esp-idf/en/latest/esp32/get-started/windows-setup.html). During the ESP-IDF installation you might be asked for install Eclipse additionally. After successful process it is necessary to add new enviroment variables. Variables names: - IDF\_PATH - paste the path of the directory with ESP-IDF framework - IDF\_TOOLS\_PATH - paste the path of the directory with ESP-IDF tools [![f8899686-b97f-47ad-9a49-32b7a88b725c.png](https://doc.redisage.com/uploads/images/gallery/2024-04/scaled-1680-/f8899686-b97f-47ad-9a49-32b7a88b725c.png)](https://doc.redisage.com/uploads/images/gallery/2024-04/f8899686-b97f-47ad-9a49-32b7a88b725c.png) [![11e4e082-6da0-4bff-9e2b-33098e5062b4.png](https://doc.redisage.com/uploads/images/gallery/2024-04/scaled-1680-/11e4e082-6da0-4bff-9e2b-33098e5062b4.png)](https://doc.redisage.com/uploads/images/gallery/2024-04/11e4e082-6da0-4bff-9e2b-33098e5062b4.png) Finally you can run ESP-IDF CMD and start to manage your project. There should be an icon on the desktop or easy access to ESP-IDF. [![e4d424cb-4a06-45e7-9c6b-3160777c93fe.png](https://doc.redisage.com/uploads/images/gallery/2024-04/scaled-1680-/e4d424cb-4a06-45e7-9c6b-3160777c93fe.png)](https://doc.redisage.com/uploads/images/gallery/2024-04/e4d424cb-4a06-45e7-9c6b-3160777c93fe.png) ##### Create new project idf.py create-project -p <name> ##### Build project idf.py -p <port> build ##### Flash project idf.py -p <port> flash idf.py -p <port> flash monitor ##### Erase flash esptool.py --port <port> erase\_flash ### MinGW Download MinGW with GUI from MinGW - Minimalist GNU for Windows and install on your PC. After a successful installation run MinGW Installation Manager (GUI). [![04cab29c-1dae-42b6-a0c6-d013d37ffadd.png](https://doc.redisage.com/uploads/images/gallery/2024-04/scaled-1680-/04cab29c-1dae-42b6-a0c6-d013d37ffadd.png)](https://doc.redisage.com/uploads/images/gallery/2024-04/04cab29c-1dae-42b6-a0c6-d013d37ffadd.png) Now we need to install Basic Setup. Right click on every square fields in “Package” tab, then “Mark for Installation”. Next, in “Installation” tab click on “Apply Changes” and then “Apply”.
[![67a06d6c-6dc6-4b4d-a4c4-25afbe706867.png](https://doc.redisage.com/uploads/images/gallery/2024-04/scaled-1680-/67a06d6c-6dc6-4b4d-a4c4-25afbe706867.png)](https://doc.redisage.com/uploads/images/gallery/2024-04/67a06d6c-6dc6-4b4d-a4c4-25afbe706867.png)[![5e24edfe-6c42-48ba-bfb8-7701b7b71c77.png](https://doc.redisage.com/uploads/images/gallery/2024-04/scaled-1680-/5e24edfe-6c42-48ba-bfb8-7701b7b71c77.png)](https://doc.redisage.com/uploads/images/gallery/2024-04/5e24edfe-6c42-48ba-bfb8-7701b7b71c77.png)
To check if the installation is successful, open Command line and type: ```bash gcc --version ``` [![d9abc443-bde5-4a2d-b6c4-55c0820cbe99.png](https://doc.redisage.com/uploads/images/gallery/2024-04/scaled-1680-/d9abc443-bde5-4a2d-b6c4-55c0820cbe99.png)](https://doc.redisage.com/uploads/images/gallery/2024-04/d9abc443-bde5-4a2d-b6c4-55c0820cbe99.png) ### IDE You can edit code in your preferred IDE as ESP-IDF is handling the final build and flash. Recommanded IDEs: - [CodeBlocks](https://www.codeblocks.org/downloads/) - [Visual Studio Code](https://code.visualstudio.com/download) - [Eclipse](https://www.eclipse.org/downloads/) - [Thonny IDE](https://thonny.org/) #### Visual Studio Code - Download the package with example projects for IoT Gateway. - Select one of the demos and copy it to a new directory. - Open Visual Studio Code and click on the extension tab. - Install and configure C/C++ extensions. [![1dbaaf87-a363-40c9-a7e7-0ac416be86bd.png](https://doc.redisage.com/uploads/images/gallery/2024-04/scaled-1680-/1dbaaf87-a363-40c9-a7e7-0ac416be86bd.png)](https://doc.redisage.com/uploads/images/gallery/2024-04/1dbaaf87-a363-40c9-a7e7-0ac416be86bd.png) - Open directory in VS Code. [![7bfa65be-c841-4617-a3e5-b5c0a473d15d.png](https://doc.redisage.com/uploads/images/gallery/2024-04/scaled-1680-/7bfa65be-c841-4617-a3e5-b5c0a473d15d.png)](https://doc.redisage.com/uploads/images/gallery/2024-04/7bfa65be-c841-4617-a3e5-b5c0a473d15d.png) - If errors occur, edit “includePath” settings. [![5aa5ab7d-6595-47e4-bdd4-f9b552cbee39.png](https://doc.redisage.com/uploads/images/gallery/2024-04/scaled-1680-/5aa5ab7d-6595-47e4-bdd4-f9b552cbee39.png)](https://doc.redisage.com/uploads/images/gallery/2024-04/5aa5ab7d-6595-47e4-bdd4-f9b552cbee39.png) - Add the line "${env:IDF\_PATH}/\*\*". [![c3529dd3-920f-44dd-beb6-9629385e9aaf.png](https://doc.redisage.com/uploads/images/gallery/2024-04/scaled-1680-/c3529dd3-920f-44dd-beb6-9629385e9aaf.png)](https://doc.redisage.com/uploads/images/gallery/2024-04/c3529dd3-920f-44dd-beb6-9629385e9aaf.png) - Now code is ready to be modified. - To build or flash project, use ESP-IDF CMD. Visual Studio Code provides an extension “Espressif IDF” which has some issues at this moment. However it is not essential for editing code. #### CodeBlocks - Download the package with example projects for IoT Gateway. - Select one of the demos and copy it to a new directory. - Run ESP-IDF CMD, set the path to your project and then generate project for CodeBlocks: ```bash cmake -G "CodeBlocks - MinGW Makefiles" ``` [![1ccc0952-02b0-414f-93ee-aae2e4ce9fd7.png](https://doc.redisage.com/uploads/images/gallery/2024-04/scaled-1680-/1ccc0952-02b0-414f-93ee-aae2e4ce9fd7.png)](https://doc.redisage.com/uploads/images/gallery/2024-04/1ccc0952-02b0-414f-93ee-aae2e4ce9fd7.png) [![0b03cd5a-5116-422e-a5de-c47d6e7a569b.png](https://doc.redisage.com/uploads/images/gallery/2024-04/scaled-1680-/0b03cd5a-5116-422e-a5de-c47d6e7a569b.png)](https://doc.redisage.com/uploads/images/gallery/2024-04/0b03cd5a-5116-422e-a5de-c47d6e7a569b.png) - Run CodeBlocks. Click on "File → Open…", find .cbp type file and click on “Open”. [![7d20079f-f797-4a2d-9d74-4eb40a308cb3.png](https://doc.redisage.com/uploads/images/gallery/2024-04/scaled-1680-/7d20079f-f797-4a2d-9d74-4eb40a308cb3.png)](https://doc.redisage.com/uploads/images/gallery/2024-04/7d20079f-f797-4a2d-9d74-4eb40a308cb3.png) - After this, there should be a project tree available and code is ready to be modified. [![06b76408-0f58-47f0-8894-a3e115cf8562.png](https://doc.redisage.com/uploads/images/gallery/2024-04/scaled-1680-/06b76408-0f58-47f0-8894-a3e115cf8562.png)](https://doc.redisage.com/uploads/images/gallery/2024-04/06b76408-0f58-47f0-8894-a3e115cf8562.png) - To build or flash project, use ESP-IDF CMD. #### Thonny IDE - Download and install Python interpreter. - Download the package with example projects for IoT Gateway. - Select one of the demos and copy it to a new directory. - Run ESP-IDF CMD, erase flash using: ```bash esptool.py --port erase_flash ``` [![5af1e224-2094-49a3-96c6-80545ce5d8f5.png](https://doc.redisage.com/uploads/images/gallery/2024-04/scaled-1680-/5af1e224-2094-49a3-96c6-80545ce5d8f5.png)](https://doc.redisage.com/uploads/images/gallery/2024-04/5af1e224-2094-49a3-96c6-80545ce5d8f5.png) - Download [firmware ](https://micropython.org/download/ESP32_GENERIC/)which allows to run microPython. - Flash .bin file using: ```bash  esptool.py --port write_flash -z 0x1000 ``` [![2aae30b3-126b-420b-ad12-a8244c9384de.png](https://doc.redisage.com/uploads/images/gallery/2024-04/scaled-1680-/2aae30b3-126b-420b-ad12-a8244c9384de.png)](https://doc.redisage.com/uploads/images/gallery/2024-04/2aae30b3-126b-420b-ad12-a8244c9384de.png) - Open serial port monitor like “Putty”, set COM port, baudrate, connection type to serial and click on “Open”. [![e6a97031-3316-44aa-b31a-8259727b87d8.png](https://doc.redisage.com/uploads/images/gallery/2024-04/scaled-1680-/e6a97031-3316-44aa-b31a-8259727b87d8.png)](https://doc.redisage.com/uploads/images/gallery/2024-04/e6a97031-3316-44aa-b31a-8259727b87d8.png) - Now you can run Python console on ESP32. [![2ba64294-f54b-4a64-a837-dae5c60e23d9.png](https://doc.redisage.com/uploads/images/gallery/2024-04/scaled-1680-/2ba64294-f54b-4a64-a837-dae5c60e23d9.png)](https://doc.redisage.com/uploads/images/gallery/2024-04/2ba64294-f54b-4a64-a837-dae5c60e23d9.png) - Download and install [Thonny IDE](https://thonny.org/). - Click on "Tools → Options → Interpreter". In this tab you can choose an interpreter and COM port. [![57f3a021-1371-45d6-b13f-c21b10f9d21c.png](https://doc.redisage.com/uploads/images/gallery/2024-04/scaled-1680-/57f3a021-1371-45d6-b13f-c21b10f9d21c.png)](https://doc.redisage.com/uploads/images/gallery/2024-04/57f3a021-1371-45d6-b13f-c21b10f9d21c.png) - After all the process Thonny IDE is ready to work. [![f70a61dc-1ec9-4ea3-9960-e90cfd98c478.png](https://doc.redisage.com/uploads/images/gallery/2024-04/scaled-1680-/f70a61dc-1ec9-4ea3-9960-e90cfd98c478.png)](https://doc.redisage.com/uploads/images/gallery/2024-04/f70a61dc-1ec9-4ea3-9960-e90cfd98c478.png) - To flash the demo, open file in Thonny IDE. Next click on green button to run the current script. ### Uploading firmware To upload firmware, you need to use external programmer with Tag-connect. [![3665aeb3-48ae-44d7-9f2d-4d2decaefb59 (1).png](https://doc.redisage.com/uploads/images/gallery/2024-04/scaled-1680-/3665aeb3-48ae-44d7-9f2d-4d2decaefb59-1.png)](https://doc.redisage.com/uploads/images/gallery/2024-04/3665aeb3-48ae-44d7-9f2d-4d2decaefb59-1.png) # Pin Map ## {{@218#bkmrk-open-iot-and-iiot-ga}} ### CGE2 rev. 4.1
**Element****Connection**
**LED**
Power LED7 (blue)+3V3
ETHERNET LED1 (green)ETH\_LED3/PHY\_AD3
RGB programmable LED5 (red)Q6
RGB programmable LED5 (blue)Q5
RGB programmable LED5 (green)Q4
**74HC595BQ shift register**
VCC+3V3
Q7SQ7S
Q0Q0
Q1Q1
Q2Q2
Q3RS485\_TER\_EN2
Q4Q4
Q5Q5
Q6Q6
Q7RS485\_TER\_EN1
MR/CHIP\_PU (pull up)
OE/GND
DSSERIAL\_REG\_DATA
SHCPSHCP
STCPSTCP (pull down)
GNDGND
TPADGND
**MAX481CSA\_1 UART RS485 transceiver**
DIUART1\_TX
DEUART1\_DIR
RE/UART1\_DIR
ROUART1\_RX
AA\_1
BB\_1
**MAX481CSA\_2 UART RS485 transceivers**
DIUART2\_TX
DEUART2\_DIR
RE/UART2\_DIR
ROUART2\_RX
AA\_2
BB\_2
**ST3232BTR RS232 driver and receiver**
C1+C1 (100 nF)
C1-C1 (100 nF)
C2+C2 (100 nF)
C2-C2 (100 nF)
T1INUART1\_TX
T2INUART2\_TX
R1OUTUART1\_RX
R2OUTUART2\_RX
V+C3 (100 nF)
V-C4 (100 nF)
T1OUTTXD1
T2OUTTXD2
R1INRXD1
R2INRXD2
**USBLC6-2SC6 ESD protection**
VCCUSB\_V
GNDGND
IO1\_ADATA-
IO1\_BCONSOLE\_RX
IO2\_ADATA+
IO2\_BCONSOLE\_TX
**MicroUSB type B**
V\_BUSUSB\_V
D-DATA-
D+DATA+
IDGND
GNDGND
**M24C02-RMC6TG\_1 I2C EEPROM**
E0GND
E1GND
E2+3V3
VSSGND
VCC+3V3
WC/GND
SCLI2C\_SCL
SDAI2C\_SDA
**M24C02-RMC6TG\_2 I2C EEPROM**
E0+3V3
E1+3V3
E2GND
VSSGND
VCC+3V3
WC/GND
SCLI2C\_SCL (pull up)
SDAI2C\_SDA (pull up)
**GD25Q64CSIGTR QSPI FLASH**
CS#SPICS0
SOSPIQ
WP#SPIWP
VSSGND
VCCVDD\_SDIO
HOLD#SPIHD
SCLKSPICLK
SISPID
**IP101GRI ETHERNET transceivers**
MDCETH\_MDC
MDIOETH\_MDIO
MDI\_TPTXD+
MDI\_TNTXD-
MDI\_RPRXD+
MDI\_RNRXD-
X2-
X1GND
RESET\_NETH\_RESET\_N (pull up)
ISETETH\_ISET (pull down)
LED0/PHY\_AD0ETH\_LED0/PHY\_AD0 (pull up)
LED3/PHY\_AD3ETH\_LED3/PHY\_AD3 (pull down)
TEST\_ON-
REGOUTC21 (100 nF), C35 (10 uF)
VDDIO+3V3
AVDD33+3V3
GNDGND
TXENETH\_TX\_EN
TXER/FXSD-
TXCLK/50M\_CLKIETH\_CLK\_IN
TXD0ETH\_TXD0
TXD1ETH\_TXD1
TXD2-
TXD3-
RXDV/CRS\_DV/FX\_HENETH\_RX\_CRS\_DV
RXCLK/50M\_CLKO-
RXD0ETH\_RXD0
RXD1ETH\_RXD1
RXD2-
RXD3-
RXER/INTR\_32-
COL/RMIIETH\_COL/RMII (pull up)
CRS/LEDMOD-
**ESP32-DOWD**
VDDA\_1+3V3
LNA\_INANT
VDD3P3\_1VDD3P3 (+3V3)
VDD3P3\_2VDD3P3 (+3V3)
SENSOR\_VP (GPI36)USB\_DETECT (pull down)
SENSOR\_CAPP (GPI37)UART2\_RX
SENSOR\_CAPN (GPI38)GPI\_38
SENSOR\_VN (GPI39)P\_DETECT (pull up)
CHIP\_PUCHIP\_PU (pull up)
VDET\_1 (GPI34)BUTTON\_IN (pull up)
VDET\_2 (GPI35)UART1\_RX
32K\_XP (GPIO32)UART1\_TX
32K\_XN (GPIO33)SHCP
GPIO25ETH\_RXD0
GPIO26ETH\_RXD1
GPIO27ETH\_RX\_CRS\_DV
MTMS (GPIO14)UART1\_DIR
MTDI (GPIO12)UART2\_DIR
VDD3P3\_RTC+3V3
MTCK (GPIO13)I2C\_SDA (pull up)
MTDO (GPIO15)STCP (pull down)
GPIO2I2C\_SCL (pull up)
GPIO0ETH\_CLK\_IN, SPICS1
GPIO4SERIAL\_REG\_DATA
GPIO16ETH\_CLK
VDD\_SDIOVDD\_SDIO
GPIO17SPICS1
SD\_DATA\_2 (GPIO9)SPIHD
SD\_DATA\_3 (GPIO10)SPIWP
SD\_CMD (GPIO11)SPICS0
SD\_CLK (GPIO6)SPICLK
SD\_DATA\_0 (GPIO7)SPIQ
SD\_DATA\_1 (GPIO8)SPID
GPIO5UART2\_TX
GPIO18ETH\_MDIO
GPIO23ETH\_MDC
VDD3P3\_CPU+3V3
GPIO19ETH\_TXD0
GPIO22ETH\_TXD1
U0RXD (GPIO3)CONSOLE\_RX
U0TXD (GPIO1)CONSOLE\_TX
GPIO21ETH\_TX\_EN
VDDA\_2+3V3
XTAL\_NXTAL\_N
XTAL\_PXTAL\_P
VDDA\_3+3V3
CAP2CAP2
CAP1CAP1
GNDGND
### Optional
**Element****Connection**
**Expander**
1FGC
2-
3CHIP\_PU (pull up)
4Q7S
5SHCP
6STCP (pull down)
7Q2
8BUT\_EXT
9GPI\_38
10+3V3
11I2C\_SCL (pull up)
12I2C\_SDA (pull up)
13GND
14GND
15-
16FGC
**Programmer**
1CONSOLE\_RX
2CONSOLE\_TX
3+3V3
4CHIP\_PU
5GND
6P\_DETECT
7-
8-
9BOOT
10I2C\_SCL
**870-62WS5128 QSPI RAM**
CS#SPICS1
SOSPIQ
WP#SPIWP
VSSGND
VCCVDD\_SDIO
HOLD#SPIHD
SCLKSPICLK
SISPID
**Secure element**
SCLI2C\_SCL (pull up)
SDAI2C\_SDA (pull up)
VCC+3V3
IO-
GNDGND
**SI7006-A20/SI7020-A20 humidity and temperature sensor**
SDAI2C\_SDA (pull up)
GNDGND
DNC1-
SCLI2C\_SCL (pull up)
VDD+3V3
DNC2-
**HTS221 humidity and temperature sensor**
VDD+3V3
CS+3V3
GNDGND
SCL/SPCI2C\_SCL (pull up)
SDA/SDI/SDOI2C\_SDA (pull up)
DRDY-
**LSM6DS33 accelerometer and gyro**
GNDGND
GNDGND
RESGND
RESGND
RESGND
RESGND
INT1-
INT2-
CS+3V3
SDO-
SDAI2C\_SDA (pull up)
SCLI2C\_SCL (pull up)
VDDIO+3V3
VDD+3V3
RESGND
NC-
**LIS3DH accelerometer**
VDD\_IO+3V3
NC-
NC-
SCL/SPCI2C\_SCL (pull up)
GNDGND
SDA/SDI/SDOI2C\_SDA (pull up)
SDO/SAO-
CS+3V3
INT2-
RESGND
INT1-
GNDGND
ADC3-
VDD+3V3
ADC2-
ADC1-
**IP101GRI ETHERNET transceivers**
ETH\_RESET\_NQ1
# P03 Programmer ## {{@218#bkmrk-open-iot-and-iiot-ga}} P01 and P02 can be programmed via P03 USB RS232 RS485 Converters. More info [here](https://doc.redisage.com/link/219#bkmrk-page-title). # Peripherals # Simplified Block Diagram ## {{@218#bkmrk-open-iot-and-iiot-ga}}
Optional elements are marked with the dashed lines. # RGB LED ## {{@218#bkmrk-open-iot-and-iiot-ga}}
RGB LED is controlled by SIPO shift register 74HC595BQ. - SHCP - shift register clock input - STCP - storage register clock input - DS - serial data input # Switch ## {{@218#bkmrk-open-iot-and-iiot-ga}}
The Open IoT Gateway P01 variant contains a tactile switch. The PCB has hardware pull-up designed into it so debouncing effect is eliminated.

If the switch is soldered to the PCB, make sure there is also a resistor R52 located on the bottom layer of the board.

# RS232 and RS485 ## {{@218#bkmrk-open-iot-and-iiot-ga}}
The gateway is equipped with 2 transceivers MAX481 that handle transmission in RS485 standard on each channel independently. Similar to RGB, each channel can be enabled by SIPO shift register 74HC595BQ. To ensure transmission in RS232 standard there is also ST3232BTR IC which allows transmission on each channel independently.

It is possible to use only one pair of each interface at the same moment, because RS232 and RS485 use the same UART pins on the MCU.

# Ethernet PHY ## {{@218#bkmrk-open-iot-and-iiot-ga}}
The Ethernet interface is provided by the IP101G physical layer. There is also an external board with RJ45 socket which ensures wired connection to the network. # MicroUSB ## {{@218#bkmrk-open-iot-and-iiot-ga}}
MicroUSB ensures access straight to UART interface (UART0). The Open IoT Gateway does not have inbuild FTDI converter so an external USB to UART FTDI converter is needed to run a serial port monitor on a PC. # I2C EEPROM ## {{@218#bkmrk-open-iot-and-iiot-ga}}
# WiFi/Antenna ## {{@218#bkmrk-open-iot-and-iiot-ga}}
The Open IoT and IIoT Gateway P02 variant contains SMA connector for a WiFi/Bluetooth antenna. # QSPI Flash ## {{@218#bkmrk-open-iot-and-iiot-ga}}
# QSPI RAM ## {{@218#bkmrk-open-iot-and-iiot-ga}}
# Expander ## {{@218#bkmrk-open-iot-and-iiot-ga}}
The female goldpin connector allows easy access to different signals. It might be useful during analysis of the board. - GPI38 - general purpose input pin, connected directly to the MCU (might work only as an input pin) - 3V3 - 3.3 V voltage - I2C\_SCL and I2C\_SDA - main lines of the I2C interface - GND - ground - NC - not connected - FGC - frame ground connection - BUT\_EXT - switch test line ('1' is set by default) - Q2 - Q2 pin of the shift register - STCP - storage register clock input - SHCP - shift register clock input - Q7S - serial data output pin of shift register - CHIP\_PU - chip power up signal ('1' - enables the chip) # I2C Sensors ## {{@218#bkmrk-open-iot-and-iiot-ga}}
- LSM6DS33 - 3D accelerometer and 3D gyroscope - LIS3DH - 3-axis "nano" accelerometer - HTS221 - capacitive digital sensor for relative humidity and temperature measurements - SI7006-A20 / SI7020-A20 - humidity and temperature sensor - Secure element # Examples Link to GitHub repository # Hello World ## {{@218#bkmrk-open-iot-and-iiot-ga}} Link to repositories: - [C](https://github.com/Redisage/PAC-ESP32/tree/master/C_examples/hello_world) - [MicroPython](https://github.com/Redisage/PAC-ESP32/tree/master/uPython_examples/hello_world) ### Description This example use UART0 in the MCU which is reserved for the console. Simple string and device info is printed on the console and then the MCU restarts after 10 seconds. ### Console output [![image.png](https://doc.redisage.com/uploads/images/gallery/2024-06/scaled-1680-/5sUimage.png)](https://doc.redisage.com/uploads/images/gallery/2024-06/5sUimage.png) # RGB LED ## {{@218#bkmrk-open-iot-and-iiot-ga}} Link to repositories: - [C](https://github.com/Redisage/ESP32_Open_IoT_and_IIoT_Gateways_examples/tree/master/C_examples/rgb_led) - [MicroPython](https://github.com/Redisage/ESP32_Open_IoT_and_IIoT_Gateways_examples/tree/master/uPython_examples/rgb_led) ### Description This example shows how to use the programmable RGB LED via the 74HC595BQ shift register. After flashing the device, the RGB LED should change its color between red, green and blue. It can be used to check if the device was connected and flashed properly. ### Console output [![image.png](https://doc.redisage.com/uploads/images/gallery/2024-06/scaled-1680-/tRlimage.png)](https://doc.redisage.com/uploads/images/gallery/2024-06/tRlimage.png) # Switch ## {{@218#bkmrk-open-iot-and-iiot-ga}} Link to repositories: - [C](https://github.com/Redisage/PAC-ESP32/tree/master/C_examples/switch) - [MicroPython](https://github.com/Redisage/ESP32_Open_IoT_and_IIoT_Gateways_examples/tree/master/uPython_examples/switch) ### Description This example shows how to use the button located on the board. There is a simple interrupt handler implemented with a queue used to send a parameter from the handler to a main loop. The board should react on every button press or release with a communicate on the console log. ### Console output [![image.png](https://doc.redisage.com/uploads/images/gallery/2024-06/scaled-1680-/Cseimage.png)](https://doc.redisage.com/uploads/images/gallery/2024-06/Cseimage.png) # ADC ## {{@218#bkmrk-open-iot-and-iiot-ga}} Link to repositories: - [C](https://github.com/Redisage/PAC-ESP32/tree/master/C_examples/adc) - [MicroPython](https://github.com/Redisage/ESP32_Open_IoT_and_IIoT_Gateways_examples/tree/master/uPython_examples/adc) ### Description This example shows how to use the ADC (analog-digital converter) located on the board. In the beginning of the program there is an ADC calibration performed. Thanks to that a raw reading can be converted to a corresponding voltage level. ### Console output [![image.png](https://doc.redisage.com/uploads/images/gallery/2024-06/scaled-1680-/PTsimage.png)](https://doc.redisage.com/uploads/images/gallery/2024-06/PTsimage.png) # RS232 ## {{@218#bkmrk-open-iot-and-iiot-ga}} Link to repositories: - [C](https://github.com/Redisage/PAC-ESP32/tree/master/C_examples/rs232) - [MicroPython](https://github.com/Redisage/PAC-ESP32/tree/master/uPython_examples/rs232) ### Connection Connect RS232\_1 port to the RS232\_2 port in the loopback configuration. [![1qnimage.png](https://doc.redisage.com/uploads/images/gallery/2024-06/scaled-1680-/YXu1qnimage.png)](https://doc.redisage.com/uploads/images/gallery/2024-06/YXu1qnimage.png) ### Description This example shows how to handle the RS232 communication via UART. After flashing both ports should send and read data from each other. ### Console output [![image.png](https://doc.redisage.com/uploads/images/gallery/2024-06/scaled-1680-/Hh5image.png)](https://doc.redisage.com/uploads/images/gallery/2024-06/Hh5image.png) # RS485 ## {{@218#bkmrk-open-iot-and-iiot-ga}} Link to repositories: - [C](https://github.com/Redisage/PAC-ESP32/tree/master/C_examples/rs485) - [MicroPython](https://github.com/Redisage/PAC-ESP32/tree/master/uPython_examples/rs485) ### Connection Connect RS485\_1 port to the RS485\_2 port in the loopback configuration. [![image.png](https://doc.redisage.com/uploads/images/gallery/2024-06/scaled-1680-/Ei3image.png)](https://doc.redisage.com/uploads/images/gallery/2024-06/Ei3image.png) ### Description This example shows how to handle the RS485 communication via UART and UART-RS485 MAX481 converter. There is also a function implemented for each line termination via the 74HC595BQ shift register. After flashing both ports should send and read data from each other. ### Console output [![image.png](https://doc.redisage.com/uploads/images/gallery/2024-06/scaled-1680-/Azwimage.png)](https://doc.redisage.com/uploads/images/gallery/2024-06/Azwimage.png) # I2C Scanner ## {{@218#bkmrk-open-iot-and-iiot-ga}} Link to repositories: - [C](https://github.com/Redisage/PAC-ESP32/tree/master/C_examples/i2c_scanner) - [MicroPython](https://github.com/Redisage/ESP32_Open_IoT_and_IIoT_Gateways_examples/tree/master/uPython_examples/i2c_scanner) ### Description This example scans through the I2C adresses from 0x03 to 0x78 and lists all available devices. It can be used to detect new I2C devices connected to the board. ### Console output [![image.png](https://doc.redisage.com/uploads/images/gallery/2024-06/scaled-1680-/Ggbimage.png)](https://doc.redisage.com/uploads/images/gallery/2024-06/Ggbimage.png) # Ethernet ## {{@218#bkmrk-open-iot-and-iiot-ga}} Link to repositories: - [C](https://github.com/Redisage/PAC-ESP32/tree/master/C_examples/ethernet_ping) - [MicroPython](https://github.com/Redisage/ESP32_Open_IoT_and_IIoT_Gateways_examples/tree/master/uPython_examples/ethernet_ping) ### Connection ETHERNET adapter should be connected to WLAN with a RJ45 cable. [![image-33.webp](https://doc.redisage.com/uploads/images/gallery/2024-06/scaled-1680-/image-33.webp)](https://doc.redisage.com/uploads/images/gallery/2024-06/image-33.webp) ### Description This example demonstrates basic usage of ETHERNET driver. After flashing the CGE2 will try to obtain an IP address in a network it will be connected to. Once it will be done it will be possible to ping the device in this network. This example is a good base for developing own network solutions. ### Console output [![image.png](https://doc.redisage.com/uploads/images/gallery/2024-06/scaled-1680-/W6Yimage.png)](https://doc.redisage.com/uploads/images/gallery/2024-06/W6Yimage.png) [![image.png](https://doc.redisage.com/uploads/images/gallery/2024-06/scaled-1680-/qO5image.png)](https://doc.redisage.com/uploads/images/gallery/2024-06/qO5image.png) # WiFi ## {{@218#bkmrk-open-iot-and-iiot-ga}} Link to repositories: - [C](https://github.com/Redisage/PAC-ESP32/tree/master/C_examples/wifi) - [MicroPython](https://github.com/Redisage/PAC-ESP32/tree/master/uPython_examples/wifi) ### Description This example shows how to create a Wi-Fi station or access point with CGE2. Access point is a device that hosts WI-FI network. Station is a device that can be connected to an existing Wi-Fi network. User can add their own network names, passwords and security features. Keep in mind that external antenna will extend the range of the device. ### Console output #### Access point [![image.png](https://doc.redisage.com/uploads/images/gallery/2024-06/scaled-1680-/BZ3image.png)](https://doc.redisage.com/uploads/images/gallery/2024-06/BZ3image.png) #### Station [![image.png](https://doc.redisage.com/uploads/images/gallery/2024-06/scaled-1680-/3Pqimage.png)](https://doc.redisage.com/uploads/images/gallery/2024-06/3Pqimage.png) # More Examples ## {{@218#bkmrk-open-iot-and-iiot-ga}} More examples from Espressif can be found [here](https://github.com/espressif/esp-idf/tree/master/examples). Also the ESP-IDF documentation can found [here](https://docs.espressif.com/projects/esp-idf/en/stable/esp32/index.html). MicroPython examples and documentation can be found [here](https://docs.micropython.org/en/latest/esp32/quickref.html). # Contact Us - [Main web page](https://redisage.com/) - [Facebook](https://www.facebook.com/Redisage/) - E-mail: - Phone number: +48 71 70 00 140 - Address: NSG 4L Sp. z o.o. ul. Trzy Lipy 3B 80-172 Gdańsk (POLSKA) - [More information](https://redisage.com/en/contact.html) # Common Resources Source of common resources used across the Open IoT and IIoT Gateways documentation # Tables ### Specifications‎‎‎
**Redisage PN** **P01** **P02**
Ports RS232 - -
RS485 - -
RS232/RS485 2x 2x
Microcontroller ESP32
WiFi N/A 802.11 b/g/n 150 Mbps / 2.4 GHz
Bluetooth N/A v4.2 BR/EDR and BLE
SMA socket connector for WiFi/BT antenna ![:x:](https://pf-emoji-service--cdn.us-east-1.prod.public.atl-paas.net/standard/caa27a19-fc09-4452-b2b4-a301552fd69c/32x32/274c.png) ![:white_check_mark:](https://pf-emoji-service--cdn.us-east-1.prod.public.atl-paas.net/standard/caa27a19-fc09-4452-b2b4-a301552fd69c/32x32/2705.png)
Tactile switch ![:white_check_mark:](https://pf-emoji-service--cdn.us-east-1.prod.public.atl-paas.net/standard/caa27a19-fc09-4452-b2b4-a301552fd69c/32x32/2705.png) ![:x:](https://pf-emoji-service--cdn.us-east-1.prod.public.atl-paas.net/standard/caa27a19-fc09-4452-b2b4-a301552fd69c/32x32/274c.png)
Power Voltage 12-30 VDC
Power < 1 W
Frame ground protection yes
Baud rate up to 115200 bps
LED indicators power, link activity, programmable RGB
RS485 termination 120 ohm manually enabled
Connector RS232/RS485 8-pin terminal block max. 2.5 mm2 wire
Power 3-pin terminal block max. 2.5 mm2 wire
Ethernet RJ45
Transmission distance RS485 max. 1,200 m at 9.6 kbps; max. 400 m at 115.2 kbps (Belden 9841 2P twisted-pair cable, if different cables are used, the transmission distance may change)
RS232 max. 15 m at 115.2 kbps
Mounting and enclosure DIN rail, plastic PA - UL 94 V0, black/green
Temperatures -40°C to +75°C operating and storage
Humidity 10 - 90% RH, non-condensing
ESD protection ±4 kV contact discharge / ±8 kV air discharge
Certification CE, RoHS, EMC, LVD
Norms 61000-6-2 - Immunity standard for industrial environments 61000-6-4 - Emission standard for industrial environments
### Pin assignments
**P01** [![P01 Name Plate Label v1 #1099.png](https://doc.redisage.com/uploads/images/gallery/2024-06/scaled-1680-/p01-name-plate-label-v1-1099.png)](https://doc.redisage.com/uploads/images/gallery/2024-06/p01-name-plate-label-v1-1099.png) **P02** [![P02 Name Plate Label v1 #1098.png](https://doc.redisage.com/uploads/images/gallery/2024-06/scaled-1680-/p02-name-plate-label-v1-1098.png)](https://doc.redisage.com/uploads/images/gallery/2024-06/p02-name-plate-label-v1-1098.png)
# Introduction ## ESP32 Open IoT and IIoT Gateways (P01 & P02) Open IoT Gateway is also called as a PAC (Programmable Automation Controller). PAC products combine the functionality and openness of a PC, the reliability of a programmable logic unit like PLC and the intelligence of I/O modules with flexible software tools for a wide range of applications from data acquisition, process control, motion control to energy and building management. Our PAC family includes FreeRTOS PACs and MicroPython PACs for different requirements in OS, CPU and development platform. The P01 and P02 Gateways are based on **ESP32 Xtensa LX6**.