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Adafruit Feather 32u4 Basic Proto
AdafruitATmega32u4
A portable microcontroller board with 20 GPIO pins, hardware serial, I2C, and SPI support.
In stock
Specifications
9- Operating Voltage
- 3.3V logic, 4.2-3.7V battery input (LiPo/LiPoly) or 5V USB input (regulated to 3.3V) with 500mA peak current output from the 3.3V regulator.
- Logic Level
- 3.3V logic
- Clock Speed
- 8 MHz
- Flash
- 32K bytes
- Ram
- 2K bytes
- Gpio Count
- 20
- Dimensions
- 2.0" x 0.9" x 0.28" inches
- Connectivity
- USB native support, hardware I2C, hardware SPI, hardware Serial
- Usb
- Micro USB jack for power and programming
Pinout
17| Pin | Name | Functions | Notes |
|---|---|---|---|
| 0 | RX | GPIO | Serial1 input |
| 1 | TX | GPIO | Serial1 output |
| 2 | SDA | GPIO | I2C data, Interrupt #1 |
| 3 | SCL | GPIO | I2C clock, Interrupt #0 |
| 5 | PWM5 | PWM | |
| 6 | PWM6 | PWMADC | Analog input A7 |
| 9 | PWM9 | PWMADC | Analog input A9 |
| 10 | PWM10 | PWMADC | Analog input A10 |
| 11 | PWM11 | PWM | |
| 12 | A12 | GPIOADC | Analog input A11 |
| 13 | LED | PWM | Connected to red LED next to USB jack |
| A0 | A0 | GPIOADC | |
| A1 | A1 | GPIOADC | |
| A2 | A2 | GPIOADC | |
| A3 | A3 | GPIOADC | |
| A4 | A4 | GPIOADC | |
| A5 | A5 | GPIOADC |
Interactive pinout
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ATmega32u4
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