DEV-13664 · SparkFunActive
If you’re ready to step your Arduino game up from older 8-bit/16MHz microcontrollers, the SparkFun SAMD21 Mini Breakout is a great landing spot. (SparkFun DEV-13664)
| Part number | DEV-13664 |
|---|---|
| Manufacturer | SparkFun |
| Category | Development Boards › SAMD / SAM Boards |
| Pins | 36 |
| Frequency | 16 MHz |
| Resolution | 8 bit |
SparkFun SAMD21 Mini Breakout pinout
| Pin | Name | Type | Description |
|---|---|---|---|
| 1 | D1/TXO | bidirectional | |
| 2 | VIN | power | |
| 3 | D0/RXI | bidirectional | |
| 4 | GND | ground | |
| 5 | !RESET | bidirectional | |
| 6 | AREF | bidirectional | |
| 7 | GND | ground | |
| 8 | 3.3V | power | |
| 9 | SCL | bidirectional | |
| 10 | D2 | bidirectional | |
| 11 | A3 | bidirectional | |
| 12 | SDA | bidirectional | |
| 13 | D3 | bidirectional | |
| 14 | A2 | bidirectional | |
| 15 | D4 | bidirectional | |
| 16 | A1 | bidirectional | |
| 17 | D5 | bidirectional | |
| 18 | A0 | bidirectional | |
| 19 | D6 | bidirectional | |
| 20 | D13/SCK | bidirectional | |
| 21 | D7 | bidirectional | |
| 22 | D12/MISO | bidirectional | |
| 23 | SWDIO | bidirectional | |
| 24 | SWCLK | bidirectional | |
| 25 | 6 | bidirectional | |
| 26 | 8 | bidirectional | |
| 27 | !RESET | bidirectional | |
| 28 | D8 | bidirectional | |
| 29 | 3.3V | power | |
| 30 | GND | ground | |
| 31 | GND | ground | |
| 32 | 7 | bidirectional | |
| 33 | 9 | bidirectional | |
| 34 | D11/MOSI | bidirectional | |
| 35 | D9 | bidirectional | |
| 36 | D10/SS | bidirectional |
Schematic symbol and footprint
Footprint: SparkFun SAMD21 Mini Breakout (header pads) — to scale, pad 1 in yellow (mm). Check against the datasheet before ordering PCBs.
Datasheet
Where to buy
Stock and prices from the suppliers, checked 2026-10-08; excluding tax and shipping.
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