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Bluefruit Nrf52 Feather Learning Guide
AdafruitnRF52832
A Bluetooth Low Energy board with built-in USB and battery charging, featuring ARM Cortex M4F processor.
In stock
Specifications
8- Operating Voltage
- 1.7V to 3.3V (internal regulators) or 4.5-5.2V (USB) or ~3.5-4.2V (Lipo) depending on power source.
- Logic Level
- 3.3V logic level
- Clock Speed
- 64MHz
- Flash
- 512KB
- Ram
- 64KB
- Gpio Count
- 19
- Dimensions
- 2.0" x 0.9" x 0.28"
- Connectivity
- Bluetooth Low Energy, USB Serial converter
Pinout
7Low source legibility.The original manufacturer datasheet for this part was difficult to read, so this pinout may be incomplete or imperfect. Always confirm against the specific manufacturer’s datasheet before wiring.
| Pin | Name | Functions | Notes |
|---|---|---|---|
| 17 | LED | GPIO | Red LED for general purpose blinking |
| 3.3V | 3.3V | POWER | Two pins connected to the 3.3V regulator output |
| VBAT | Lipo Input | GND | Voltage supply from LiPo cell, ~3.5-4.2V |
| VREG_ENABLE | Enable Pin | GPIO | Pin to disable 3.3V output regulator |
| USB | VBUS | POWER | Voltage supply from USB, ~4.5-5.2V |
| A0-A7 | Analog Inputs | ADC | 8 available analog inputs with 10-bit resolution by default |
| P0.31 | Battery Voltage Measurement | GPIO | Hard-wired to a voltage divider for LiPo battery level measurement, avoid using as input if possible |
Interactive pinout
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