ItsyBitsy nRF52840 Express 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 (25 pins)
| Chip pin | Board names |
|---|---|
| P0_02 | A4 |
| P0_03 | A5 |
| P0_04 | A0 |
| P0_05 | D10 |
| P0_06 | L, LED, BLUE_LED |
| P0_07 | D9 |
| P0_08 | APA102_MOSI, DOTSTAR_DATA |
| P0_11 | D12 |
| P0_12 | D13 |
| P0_13 | SCK |
| P0_14 | SCL |
| P0_15 | MOSI |
| P0_16 | SDA |
| P0_20 | MISO |
| P0_24 | D1, TX |
| P0_25 | D0, RX |
| P0_26 | D11 |
| P0_27 | D5 |
| P0_28 | A2 |
| P0_29 | SWITCH |
| P0_30 | A1 |
| P0_31 | A3 |
| P1_02 | D2 |
| P1_08 | D7 |
| P1_09 | APA102_SCK, DOTSTAR_CLOCK |
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.