Adafruit ESP32 Feather V2 w.FL Antenna - 8MB Flash + 2MB PSRAM

Logical pinout · physical placement not verified

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

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.

Logical pinout · physical placement not verified

Pin details

25 connections

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

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