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Microcontroller · Development Board
Nordic nRF52 DK
A widely used Nordic Bluetooth LE development kit exposing nRF52832 IO through headers and debugger-friendly board resources.
Processor
Nordic nRF52832 Arm Cortex-M4F
Logic
3.3 V GPIO
Power
USB, coin cell, external supply
Format
DK with Arduino headers
Check before wiring
- 3.3 V IO only.
- Radio antenna clearance and ground plane affect range.
- Board peripherals consume or load some GPIOs.
Interfaces
GPIOI2CSPIUARTADCPWMUSBBluetoothSWD
Source-backed connector
Interactive pin map
Pin map
Connector
Arduino Uno R3 shield headers (P1-P4)
Component side up, Arduino-style headers on the long edges
Simplified technical illustration. Pin data is source-backed; verify against the linked documentation before wiring.
Hover, tap, or focus a pad to inspect a pin. Use arrow keys to move between pins.
- nRF52832 GPIO is 3.3 V and not 5 V tolerant; on-board I2C pins need external pull-ups.
- Digital functions can be re-routed in firmware; A0-A5 map to fixed AIN-capable pins.
- P0.xx aliases are the nRF52832 GPIO ports per the Nordic PCA10040 / Zephyr board map.
All 27 pins (table)
| # | Signal | Role | Net | Also / notes |
|---|---|---|---|---|
| Digital | ||||
| 1 | UART | UART | P0.11 | |
| 2 | UART | UART | P0.12 | |
| 3 | GPIO | P0.13 | ||
| 4 | GPIO | P0.14 | ||
| 5 | GPIO | P0.15 | ||
| 6 | GPIO | P0.16 | ||
| 7 | GPIO | P0.17 | ||
| 8 | GPIO | P0.18 | ||
| 9 | GPIO | P0.19 | ||
| 10 | GPIO | P0.20 | ||
| 11 | SPI | SPI | P0.22 | |
| 12 | SPI | SPI | P0.23 | |
| 13 | SPI | SPI | P0.24 | |
| 14 | SPI | SPI | P0.25 | |
| 15 | I2C | I2C | P0.26 | |
| 16 | I2C | I2C | P0.27 | |
| Analog / Power | ||||
| 16 | ADC | P0.03 / AIN1 | ||
| 17 | ADC | P0.04 / AIN2 | ||
| 18 | ADC | P0.28 / AIN4 | ||
| 19 | ADC | P0.29 / AIN5 | ||
| 20 | ADC | P0.30 / AIN6 | ||
| 21 | ADC | P0.31 / AIN7 | ||
| 22 | Power | VDD | ||
| 23 | Power | 5V | ||
| 24 | Ground | GND | ||
| 25 | Power | VIN | ||
| 26 | System | |||
Why it matters
- Official page links schematics, hardware files, and documentation.
- Good baseline board for BLE firmware examples.
- Arduino-style headers make quick peripheral wiring easy.
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