Pin Map
ESP32 Open IoT and IIoT Gateways (P01 & P02)
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 |
| Q7S | Q7S |
| Q0 | Q0 |
| Q1 | Q1 |
| Q2 | Q2 |
| Q3 | RS485_TER_EN2 |
| Q4 | Q4 |
| Q5 | Q5 |
| Q6 | Q6 |
| Q7 | RS485_TER_EN1 |
| MR/ | CHIP_PU (pull up) |
| OE/ | GND |
| DS | SERIAL_REG_DATA |
| SHCP | SHCP |
| STCP | STCP (pull down) |
| GND | GND |
| TPAD | GND |
| MAX481CSA_1 UART RS485 transceiver | |
| DI | UART1_TX |
| DE | UART1_DIR |
| RE/ | UART1_DIR |
| RO | UART1_RX |
| A | A_1 |
| B | B_1 |
| MAX481CSA_2 UART RS485 transceivers | |
| DI | UART2_TX |
| DE | UART2_DIR |
| RE/ | UART2_DIR |
| RO | UART2_RX |
| A | A_2 |
| B | B_2 |
| ST3232BTR RS232 driver and receiver | |
| C1+ | C1 (100 nF) |
| C1- | C1 (100 nF) |
| C2+ | C2 (100 nF) |
| C2- | C2 (100 nF) |
| T1IN |
UART1_TX |
| T2IN |
UART2_TX |
| R1OUT |
UART1_RX |
| R2OUT |
UART2_RX |
| V+ |
C3 (100 nF) |
| V- |
C4 (100 nF) |
| T1OUT |
TXD1 |
| T2OUT |
TXD2 |
| R1IN |
RXD1 |
| R2IN |
RXD2 |
|
USBLC6-2SC6 ESD protection |
|
| VCC |
USB_V |
| GND |
GND |
| IO1_A |
DATA- |
| IO1_B |
CONSOLE_RX |
| IO2_A |
DATA+ |
| IO2_B |
CONSOLE_TX |
|
MicroUSB type B |
|
| V_BUS |
USB_V |
| D- |
DATA- (CONSOLE_RX) |
| D+ |
DATA+ (CONSOLE_TX) |
| ID |
GND |
| GND |
GND |
|
M24C02-RMC6TG_1 I2C EEPROM |
|
| E0 |
GND |
| E1 |
GND |
| E2 |
+3V3 |
| VSS |
GND |
| VCC |
+3V3 |
| WC/ |
GND |
| SCL |
I2C_SCL |
| SDA |
I2C_SDA |
|
M24C02-RMC6TG_2 I2C EEPROM |
|
| E0 |
+3V3 |
| E1 |
+3V3 |
| E2 |
GND |
| VSS |
GND |
| VCC |
+3V3 |
| WC/ |
GND |
| SCL |
I2C_SCL (pull up) |
| SDA |
I2C_SDA (pull up) |
|
GD25Q64CSIGTR QSPI FLASH |
|
| CS# |
SPICS0 |
| SO |
SPIQ |
| WP# |
SPIWP |
| VSS |
GND |
| VCC |
VDD_SDIO |
| HOLD# |
SPIHD |
| SCLK |
SPICLK |
| SI |
SPID |
|
IP101GRI ETHERNET transceivers |
|
| MDC |
ETH_MDC |
| MDIO |
ETH_MDIO |
| MDI_TP |
TXD+ |
| MDI_TN |
TXD- |
| MDI_RP |
RXD+ |
| MDI_RN |
RXD- |
| X2 | - |
| X1 | GND |
| RESET_N | ETH_RESET_N (pull up) |
| ISET | ETH_ISET (pull down) |
| LED0/PHY_AD0 | ETH_LED0/PHY_AD0 (pull up) |
| LED3/PHY_AD3 | ETH_LED3/PHY_AD3 (pull down) |
| TEST_ON | - |
| REGOUT | C21 (100 nF), C35 (10 uF) |
| VDDIO | +3V3 |
| AVDD33 | +3V3 |
| GND | GND |
| TXEN | ETH_TX_EN |
| TXER/FXSD | - |
| TXCLK/50M_CLKI | ETH_CLK_IN |
| TXD0 | ETH_TXD0 |
| TXD1 | ETH_TXD1 |
| TXD2 | - |
| TXD3 | - |
| RXDV/CRS_DV/FX_HEN | ETH_RX_CRS_DV |
| RXCLK/50M_CLKO | - |
| RXD0 | ETH_RXD0 |
| RXD1 | ETH_RXD1 |
| RXD2 | - |
| RXD3 | - |
| RXER/INTR_32 | - |
| COL/RMII | ETH_COL/RMII (pull up) |
| CRS/LEDMOD | - |
| ESP32-DOWD | |
| VDDA_1 | +3V3 |
| LNA_IN | ANT |
| VDD3P3_1 | VDD3P3 (+3V3) |
| VDD3P3_2 | VDD3P3 (+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_PU | CHIP_PU (pull up) |
| VDET_1 (GPI34) | BUTTON_IN (pull up) |
| VDET_2 (GPI35) | UART1_RX |
| 32K_XP (GPIO32) | UART1_TX |
| 32K_XN (GPIO33) | SHCP |
| GPIO25 | ETH_RXD0 |
| GPIO26 | ETH_RXD1 |
| GPIO27 | ETH_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) |
| GPIO2 | I2C_SCL (pull up) |
| GPIO0 | ETH_CLK_IN, SPICS1 |
| GPIO4 | SERIAL_REG_DATA |
| GPIO16 | ETH_CLK |
| VDD_SDIO | VDD_SDIO |
| GPIO17 | SPICS1 |
| 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 |
| GPIO5 | UART2_TX |
| GPIO18 | ETH_MDIO |
| GPIO23 |
ETH_MDC |
| VDD3P3_CPU | +3V3 |
| GPIO19 | ETH_TXD0 |
| GPIO22 | ETH_TXD1 |
| U0RXD (GPIO3) | CONSOLE_RX |
| U0TXD (GPIO1) | CONSOLE_TX |
| GPIO21 | ETH_TX_EN |
| VDDA_2 | +3V3 |
| XTAL_N | XTAL_N |
| XTAL_P | XTAL_P |
| VDDA_3 | +3V3 |
| CAP2 | CAP2 |
| CAP1 | CAP1 |
| GND | GND |
Optional
| Element | Connection |
| Expander | |
| 1 | FGC |
| 2 | - |
| 3 | CHIP_PU (pull up) |
| 4 | Q7S |
| 5 | SHCP |
| 6 | STCP (pull down) |
| 7 | Q2 |
| 8 | BUT_EXT |
| 9 | GPI_38 |
| 10 | +3V3 |
| 11 | I2C_SCL (pull up) |
| 12 | I2C_SDA (pull up) |
| 13 | GND |
| 14 | GND |
| 15 | - |
| 16 | FGC |
| Programmer |
|
| 1 | CONSOLE_RX |
| 2 | CONSOLE_TX |
| 3 | +3V3 |
| 4 | CHIP_PU |
| 5 | GND |
| 6 | P_DETECT |
| 7 | - |
| 8 | - |
| 9 | BOOT |
| 10 | I2C_SCL |
|
870-62WS5128 QSPI RAM |
|
| CS# |
SPICS1 |
| SO |
SPIQ |
| WP# |
SPIWP |
| VSS |
GND |
| VCC |
VDD_SDIO |
| HOLD# |
SPIHD |
| SCLK |
SPICLK |
| SI |
SPID |
|
Secure element |
|
| SCL |
I2C_SCL (pull up) |
| SDA |
I2C_SDA (pull up) |
| VCC |
+3V3 |
| IO |
- |
| GND |
GND |
|
SI7006-A20/SI7020-A20 humidity and temperature sensor |
|
| SDA |
I2C_SDA (pull up) |
| GND |
GND |
| DNC1 |
- |
| SCL |
I2C_SCL (pull up) |
| VDD |
+3V3 |
| DNC2 |
- |
|
HTS221 humidity and temperature sensor |
|
| VDD |
+3V3 |
| CS |
+3V3 |
| GND |
GND |
| SCL/SPC |
I2C_SCL (pull up) |
| SDA/SDI/SDO |
I2C_SDA (pull up) |
| DRDY |
- |
|
LSM6DS33 accelerometer and gyro |
|
| GND |
GND |
| GND |
GND |
| RES |
GND |
| RES |
GND |
| RES |
GND |
| RES |
GND |
| INT1 |
- |
| INT2 |
- |
| CS |
+3V3 |
| SDO |
- |
| SDA |
I2C_SDA (pull up) |
| SCL |
I2C_SCL (pull up) |
| VDDIO |
+3V3 |
| VDD |
+3V3 |
| RES |
GND |
| NC |
- |
|
LIS3DH accelerometer |
|
| VDD_IO |
+3V3 |
| NC |
- |
| NC |
- |
| SCL/SPC |
I2C_SCL (pull up) |
| GND |
GND |
| SDA/SDI/SDO |
I2C_SDA (pull up) |
| SDO/SAO |
- |
| CS |
+3V3 |
| INT2 |
- |
| RES |
GND |
| INT1 |
- |
| GND |
GND |
| ADC3 |
- |
| VDD |
+3V3 |
| ADC2 |
- |
| ADC1 |
- |
|
IP101GRI ETHERNET transceivers |
|
| ETH_RESET_N | Q1 |