120MHz M4F, 512KB flash
| Part number | Adafruit Feather M4 Express |
|---|---|
| Category | Development Boards › SAMD / SAM Boards |
| Package | Module |
| Pins | 28 |
| Frequency | 120 MHz |
Adafruit Feather M4 Express pinout
| Pin | Name | Type | Description |
|---|---|---|---|
| 1 | VBAT | power | |
| 2 | EN | bidirectional | |
| 3 | VBUS | power | |
| 4 | D13 | bidirectional | |
| 5 | D12 | bidirectional | |
| 6 | D11 | bidirectional | |
| 7 | D10 | bidirectional | |
| 8 | D9 | bidirectional | |
| 9 | D6 | bidirectional | |
| 10 | D5 | bidirectional | |
| 11 | SCL | bidirectional | |
| 12 | SDA | bidirectional | |
| 13 | !RESET | bidirectional | |
| 14 | +3V3 | power | |
| 15 | AREF | bidirectional | |
| 16 | GND | ground | |
| 17 | A0 | bidirectional | |
| 18 | A1 | bidirectional | |
| 19 | A2 | bidirectional | |
| 20 | A3 | bidirectional | |
| 21 | A4 | bidirectional | |
| 22 | A5 | bidirectional | |
| 23 | SCK | bidirectional | |
| 24 | MOSI | bidirectional | |
| 25 | MISO | bidirectional | |
| 26 | RX_D0 | bidirectional | |
| 27 | TX_D1 | bidirectional | |
| 28 | D4 | bidirectional |
Schematic symbol and footprint
Schematic symbol
Footprint: Adafruit Feather M4 Express (pads) — to scale, pad 1 in yellow (mm). Check against the datasheet before ordering PCBs.
Related parts
Adafruit CH552 QT Py - 8051 Dev Board with STEMMA QTADA5960
Adafruit CRICKIT for Circuit Playground ExpressADA3093
Adafruit Feather M0 AdaloggerADA2796
Adafruit Feather M0 ExpressADA3403
Adafruit Feather M0 RFM69HCW Packet Radio - 868 or 915 MHzADA3176
Adafruit Feather M0 WiFi - ATSAMD21 + ATWINC1500ADA3010
Adafruit Feather M0 with RFM95 LoRa Radio - 900MHzADA3178
Adafruit GEMMA M0 - Miniature wearable electronic platformADA3501