Adafruit BLM Badge specs, pinout & datasheets
- Chip / SoC
- ATSAMD21E18
- CPU
- Arm Cortex-M0+
- Clock
- 48 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 (11 pins)
| Chip pin | Board names |
|---|---|
| PA00 | TX, SDA, D5 |
| PA01 | RX, SCL, D6 |
| PA02 | CAP1, D1, A0 |
| PA03 | LED, L, D13 |
| PA04 | CAP2, D2, A1 |
| PA05 | NEOPIXEL, D14 |
| PA06 | CAP3, D3, A2 |
| PA07 | CAP4, D4, A3 |
| PA08 | MICROPHONE_DATA, D0 |
| PA10 | MICROPHONE_CLOCK, D7 |
| PA11 | LIGHT, A4 |
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.