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Adafruit HUZZAH32 ESP32 Feather
AdafruitESP32 WROOM32
This ESP32-based Feather board features a dual-core WROOM32 module with integrated WiFi and Bluetooth. It includes a USB-to-Serial converter, LiPo charger, and numerous broken-out GPIOs, making it ideal for wireless and IoT projects.
In stock
Specifications
25- Clock Speed
- 240 MHz
- Cpu Cores
- dual
- Cpu Architecture
- Tensilica LX6
- Sram
- 520 KB
- Flash
- 4 MB
- Wifi Standard
- 802.11b/g/n HT40
- Bluetooth Support
- Classic and BLE
- Operating Voltage
- 3.3 V
- Logic Level
- 3.3 V
- Usb Connector
- Micro-B
- Regulator Output Current Peak
- 500 mA
- Esp32 Current Draw Continuous
- 200 mA
- Output Pin Max Current
- 1.1 mA
- Uart Count
- 3
- Spi Count
- 3
- I2c Count
- 2
- Adc Input Channels
- 12
- Dac Output Channels
- 2
- I2s Audio Count
- 2
- Hall Sensor
- Yes
- Capacitive Touch Interface Count
- 10
- Crystal Oscillator
- 32 kHz
- Debug Interface
- OpenOCD
- Sdio Speed
- 50 MHz
- Sd Card Interface
- Yes
Pinout
23| Pin | Name | Functions | Notes |
|---|---|---|---|
| — | GND | GND | |
| — | BAT | POWER | Positive voltage for optional LiPo battery |
| — | USB | POWER | Positive voltage from micro USB jack |
| — | EN | GPIOPOWER | 3.3V regulator enable pin, pulled up (connect to GND to disable) |
| — | 3V | POWER | Output from 3.3V regulator (500mA peak) |
| — | RX | UARTGPIO | Serial1 input, 3.3V logic |
| — | TX | UARTGPIO | Serial1 output, 3.3V logic |
| — | SCL | I2CGPIO | I2C clock pin (requires external pull-up resistors) |
| — | SDA | I2CGPIO | I2C data pin (requires external pull-up resistors) |
| A0 | GPIO26 | GPIOADCDAC | Uses ADC2; not available when WiFi is active |
| A1 | GPIO25 | GPIOADCDAC | Uses ADC2; not available when WiFi is active |
| A2 | GPIO34 | GPIOADC | Input only; Uses ADC1 |
| A3 | GPIO39 | GPIOADC | Input only; Uses ADC1 |
| A4 | GPIO36 | GPIOADC | Input only; Uses ADC1 |
| A5 | GPIO4 | GPIOADC | Uses ADC2; not available when WiFi is active |
| 21 | GPIO21 | GPIO | |
| 13 | GPIO13 | GPIOADC | Connected to onboard red LED; Uses ADC2; not available when WiFi is active |
| 12 | GPIO12 | GPIOADC | Internal pull-down, recommend output only; Uses ADC2; not available when WiFi is active |
| 27 | GPIO27 | GPIOADC | Uses ADC2; not available when WiFi is active |
| 33 | GPIO33 | GPIOADC | Can be used for 32 KHz crystal; Uses ADC1 |
| 15 | GPIO15 | GPIOADC | Uses ADC2; not available when WiFi is active |
| 32 | GPIO32 | GPIOADC | Can be used for 32 KHz crystal; Uses ADC1 |
| 14 | GPIO14 | GPIOADC | Uses ADC2; not available when WiFi is active |
Interactive pinout
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ESP32 WROOM32
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