Adafruit Feather Bluefruit Sense 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 (31 pins)
| Chip pin | Board names |
|---|---|
| P0_00 | MICROPHONE_DATA |
| P0_01 | MICROPHONE_CLOCK |
| P0_02 | A4 |
| P0_03 | A5 |
| P0_04 | A0 |
| P0_05 | A1 |
| P0_06 | D11 |
| P0_07 | D6 |
| P0_08 | D12 |
| P0_09 | NFC1 |
| P0_10 | NFC2, D2 |
| P0_11 | SCL |
| P0_12 | SDA |
| P0_13 | MOSI |
| P0_14 | SCK |
| P0_15 | MISO |
| P0_16 | NEOPIXEL |
| P0_24 | RX |
| P0_25 | TX |
| P0_26 | D9 |
| P0_27 | D10 |
| P0_28 | A3 |
| P0_29 | VOLTAGE_MONITOR, BATTERY |
| P0_30 | A2 |
| P0_31 | AREF |
| P1_00 | PROXIMITY_LIGHT_INTERRUPT |
| P1_02 | SWITCH |
| P1_08 | D5 |
| P1_09 | D13, L, LED, RED_LED |
| P1_10 | BLUE_LED |
| P1_11 | D3, ACCELEROMETER_GYRO_INTERRUPT |
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.