Circuit Playground Bluefruit specs, pinout & datasheets
- Chip / SoC
- nRF52840
- CPU
- Arm Cortex-M4
- Clock
- 64 MHz
Imported entry: generated from open-source board definitions (platformio, circuitpython), not reviewed by a person. Each fact links to the definition it came from.
Specifications
Upload limits are what a sketch or firmware may use after the bootloader, as the build tools enforce them, not the chip’s full memory.
Can I still use it?
- Arduino framework
- Supported[1]Arduino framework available through PlatformIO.
- CircuitPython
- Supported[2]
As published by each project, checked weekly. A platform not listed has no published information here, which is not the same as no support.
Datasheets and documents
Pinout
Pin names in firmware (22 pins)
| Chip pin | Board names |
|---|---|
| P0_02 | A1, D6, SCK |
| P0_03 | A3, D10, MOSI |
| P0_04 | A4, D3, SCL |
| P0_05 | A5, D2, SDA |
| P0_06 | POWER_SWITCH, D35 |
| P0_13 | NEOPIXEL, D8 |
| P0_14 | D1, TX |
| P0_16 | MICROPHONE_DATA |
| P0_17 | MICROPHONE_CLOCK |
| P0_26 | AUDIO, D12, SPEAKER |
| P0_28 | LIGHT, A8 |
| P0_29 | A2, D9, MISO |
| P0_30 | A6, D0, RX |
| P0_31 | TEMPERATURE, A9 |
| P1_02 | BUTTON_A, D4 |
| P1_04 | SPEAKER_ENABLE |
| P1_06 | SLIDE_SWITCH, D7 |
| P1_10 | ACCELEROMETER_SDA |
| P1_12 | ACCELEROMETER_SCL |
| P1_13 | ACCELEROMETER_INTERRUPT |
| P1_14 | LED, L, D13 |
| P1_15 | BUTTON_B, D5 |
Sources
Spotted a mistake?
Every report is read by a person and checked against a source before anything changes. Please link one if you have it.