Adafruit ESP32 Feather V2 w.FL Antenna - 8MB Flash + 2MB PSRAM
Common ground for all power and logic, per Adafruit ESP32 Feather V2 pinouts.
Positive voltage to/from the JST connector for the optional LiPoly battery, per Adafruit pinouts.
Positive voltage to/from the USB-C connector if connected, per Adafruit pinouts.
3.3V regulator enable pin. Pulled up; connect to ground to disable the 3.3V regulator, per Adafruit pinouts.
Output from the 3.3V regulator. Adafruit states the regulator can supply 500mA peak, with the ESP32 drawing part of that budget.
Reset pin. Tie to ground to reset the board, per Adafruit pinouts.
Analogue-capable GPIO, also DAC2 and ESP32 GPIO26, using ADC2, per Adafruit pinouts.
Analogue-capable GPIO, also DAC1 and ESP32 GPIO25, using ADC2, per Adafruit pinouts.
Input-only ADC GPIO34 using ADC1, per Adafruit pinouts.
Input-only ADC GPIO39 using ADC1, per Adafruit pinouts.
Input-only ADC GPIO36 using ADC1, per Adafruit pinouts.
Analogue-capable GPIO4 using ADC2, per Adafruit pinouts.
SPI clock pin, ESP32 GPIO5, per Adafruit pinouts.
SPI Microcontroller Out / Serial In pin, ESP32 GPIO19, per Adafruit pinouts.
SPI Microcontroller In / Serial Out pin, ESP32 GPIO21, per Adafruit pinouts.
Hardware UART RX pin, ESP32 GPIO7. Adafruit notes this is separate from the USB debug UART and is used as Serial1.
Hardware UART TX pin, ESP32 GPIO8. Adafruit notes this is separate from the USB debug UART and is used as Serial1.
Input-only ADC GPIO37 using ADC1, per Adafruit pinouts.
GPIO13, ADC2-capable, per Adafruit pinouts.
GPIO12, ADC2-capable. Adafruit notes this is a boot-strapping pin that must be low on power-on/reset.
User-readable button input labelled SW38. Adafruit states it is input-only with onboard pull-up.
I2C data on the STEMMA QT/Qwiic connector, per the ESP32 Feather V2 pinout guide.
I2C clock on the STEMMA QT/Qwiic connector, per the ESP32 Feather V2 pinout guide.
3.3V supply on the STEMMA QT/Qwiic connector.
Ground on the STEMMA QT/Qwiic connector.
| Pin | Type | Function | Voltage |
|---|---|---|---|
| GND | Ground | Common ground for all power and logic, per Adafruit ESP32 Feather V2 pinouts. | |
| BAT | Power | Positive voltage to/from the JST connector for the optional LiPoly battery, per Adafruit pinouts. | LiPoly battery positive |
| USB | USB | Positive voltage to/from the USB-C connector if connected, per Adafruit pinouts. | USB 5V when connected |
| EN | Control | 3.3V regulator enable pin. Pulled up; connect to ground to disable the 3.3V regulator, per Adafruit pinouts. | |
| 3V | Power | Output from the 3.3V regulator. Adafruit states the regulator can supply 500mA peak, with the ESP32 drawing part of that budget. | 3.3V |
| RST | Control | Reset pin. Tie to ground to reset the board, per Adafruit pinouts. | |
| GPIO26A0DAC2 | GPIO, Analog | Analogue-capable GPIO, also DAC2 and ESP32 GPIO26, using ADC2, per Adafruit pinouts. | |
| GPIO25A1DAC1 | GPIO, Analog | Analogue-capable GPIO, also DAC1 and ESP32 GPIO25, using ADC2, per Adafruit pinouts. | |
| GPIO34A2 | GPIO, Analog | Input-only ADC GPIO34 using ADC1, per Adafruit pinouts. | |
| GPIO39A3 | GPIO, Analog | Input-only ADC GPIO39 using ADC1, per Adafruit pinouts. | |
| GPIO36A4 | GPIO, Analog | Input-only ADC GPIO36 using ADC1, per Adafruit pinouts. | |
| GPIO4A5 | GPIO, Analog | Analogue-capable GPIO4 using ADC2, per Adafruit pinouts. | |
| GPIO5SCK | GPIO, SPI | SPI clock pin, ESP32 GPIO5, per Adafruit pinouts. | |
| GPIO19MOMOSI | GPIO, SPI, Signal | SPI Microcontroller Out / Serial In pin, ESP32 GPIO19, per Adafruit pinouts. | |
| GPIO21MIMISO | GPIO, SPI, Signal | SPI Microcontroller In / Serial Out pin, ESP32 GPIO21, per Adafruit pinouts. | |
| GPIO7RX | GPIO, UART | Hardware UART RX pin, ESP32 GPIO7. Adafruit notes this is separate from the USB debug UART and is used as Serial1. | |
| GPIO8TX | GPIO, UART | Hardware UART TX pin, ESP32 GPIO8. Adafruit notes this is separate from the USB debug UART and is used as Serial1. | |
| D37GPIO37 | GPIO | Input-only ADC GPIO37 using ADC1, per Adafruit pinouts. | |
| D13GPIO13 | GPIO | GPIO13, ADC2-capable, per Adafruit pinouts. | |
| D12GPIO12 | GPIO | GPIO12, ADC2-capable. Adafruit notes this is a boot-strapping pin that must be low on power-on/reset. | |
| GPIO38SW38 | GPIO, Control | User-readable button input labelled SW38. Adafruit states it is input-only with onboard pull-up. | |
| STEMMA QT SDA | Signal | I2C data on the STEMMA QT/Qwiic connector, per the ESP32 Feather V2 pinout guide. | |
| STEMMA QT SCL | Signal | I2C clock on the STEMMA QT/Qwiic connector, per the ESP32 Feather V2 pinout guide. | |
| STEMMA QT 3V | Power | 3.3V supply on the STEMMA QT/Qwiic connector. | 3.3V |
| STEMMA QT GND | Ground | Ground on the STEMMA QT/Qwiic connector. |
Common ground for all power and logic, per Adafruit ESP32 Feather V2 pinouts.
Positive voltage to/from the JST connector for the optional LiPoly battery, per Adafruit pinouts.
Positive voltage to/from the USB-C connector if connected, per Adafruit pinouts.
3.3V regulator enable pin. Pulled up; connect to ground to disable the 3.3V regulator, per Adafruit pinouts.
Output from the 3.3V regulator. Adafruit states the regulator can supply 500mA peak, with the ESP32 drawing part of that budget.
Reset pin. Tie to ground to reset the board, per Adafruit pinouts.
Analogue-capable GPIO, also DAC2 and ESP32 GPIO26, using ADC2, per Adafruit pinouts.
Analogue-capable GPIO, also DAC1 and ESP32 GPIO25, using ADC2, per Adafruit pinouts.
Input-only ADC GPIO34 using ADC1, per Adafruit pinouts.
Input-only ADC GPIO39 using ADC1, per Adafruit pinouts.
Input-only ADC GPIO36 using ADC1, per Adafruit pinouts.
Analogue-capable GPIO4 using ADC2, per Adafruit pinouts.
SPI clock pin, ESP32 GPIO5, per Adafruit pinouts.
SPI Microcontroller Out / Serial In pin, ESP32 GPIO19, per Adafruit pinouts.
SPI Microcontroller In / Serial Out pin, ESP32 GPIO21, per Adafruit pinouts.
Hardware UART RX pin, ESP32 GPIO7. Adafruit notes this is separate from the USB debug UART and is used as Serial1.
Hardware UART TX pin, ESP32 GPIO8. Adafruit notes this is separate from the USB debug UART and is used as Serial1.
Input-only ADC GPIO37 using ADC1, per Adafruit pinouts.
GPIO13, ADC2-capable, per Adafruit pinouts.
GPIO12, ADC2-capable. Adafruit notes this is a boot-strapping pin that must be low on power-on/reset.
User-readable button input labelled SW38. Adafruit states it is input-only with onboard pull-up.
I2C data on the STEMMA QT/Qwiic connector, per the ESP32 Feather V2 pinout guide.
I2C clock on the STEMMA QT/Qwiic connector, per the ESP32 Feather V2 pinout guide.
3.3V supply on the STEMMA QT/Qwiic connector.
Ground on the STEMMA QT/Qwiic connector.
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