
Adafruit's Feather mainboard — the 51 by 23 mm board a project is built around, in whichever microcontroller and radio the job needs. Every one of them is the same footprint, the same four corner mounts and the same two header rows, so a shield fits any of them and swapping the board does not move anything else.
- Made by
Adafruit
- SKU
- 4884
- Kind
- Circuit board (PCB)
- Licence
- CC-BY-SA-3.0
- Keywords
- feather, adafruit, mainboard, microcontroller, mcu, board, 32u4 adalogger, esp32 v2, esp32-s2, esp32-s3, huzzah esp8266, m0 bluefruit le, m0 express, m0 rfm95 lora, m4 can express, m4 express, rp2040, rp2040 adalogger, rp2040 can, rp2040 dvi, rp2040 prop-maker, rp2040 rfm69, rp2040 usb host, rp2350, nrf52840 express, nrf52840 sense, development board, wifi, bluetooth, ble, lora
| Overall size (X × Y × Z) | 52.4 × 22.9 × 8.2 mm |
|---|---|
| PCB size | 50.8 × 22.9 mm |
| PCB thickness | 1.6 mm |
| Mounting holes | 4 × Ø2.5 mm |
| Through-hole pads | 28 |
| Components | 46 |
| Function | microcontroller board |
| Form factor | feather |
| Chip | RP2040 |
| Flash | 8 MB |
| RAM | 264 KB |
| GPIO pins | 21 |
| USB connector | USB-C |
| Logic level | 3.3 V |
| Weight | 5 g |
| Qty | Part | Value | References | Datasheet |
|---|---|---|---|---|
| × 9 | SMD Capacitor0603 | 0.1uF | C6, C7, C9, C11, C12, C13, C14, C15, C16 | X7R SMD MLCC series datasheet (KEMET) |
| × 6 | SMD Resistor0603 | 10K | R1, R2, R3, R4, R5, R7 | RC_L series datasheet (Yageo) |
| × 4 | SMD Capacitor0805 | 10uF | C1, C4, C5, C20 | X7R SMD MLCC series datasheet (KEMET) |
| × 3 | SMD Resistor0603 | 5.1K | R8, R12, R13 | RC_L series datasheet (Yageo) |
| × 2 | SMD Capacitor0603 | 1uF | C8, C10 | X7R SMD MLCC series datasheet (KEMET) |
| × 2 | SMD Capacitor0603 | 22pF | C2, C3 | X7R SMD MLCC series datasheet (KEMET) |
| × 2 | SMD Resistor0603 | 1K | R6, R11 | RC_L series datasheet (Yageo) |
| × 2 | SMD Resistor0603 | 27 | R9, R10 | RC_L series datasheet (Yageo) |
| × 1 | QFN / DFNQFN-56 7x7 P0.4 | RP2040_QFN56 | IC1 | RP2040 datasheet (Raspberry Pi) |
| × 1 | QFN / DFNDFN-8 4x4 P0.8 | W25Q64JVSSIQ | U1 | W25Q64JV datasheet (Winbond) |
| × 1 | SMD Crystal2520 4-pin | 12MHz/12pF | Y1 | |
| × 1 | SMD DiodeSOD-123 | MBR0540 | D4 | MBR0540 datasheet (onsemi) |
| × 1 | SMD DiodeSOD-323 | NSR0320 | D1 | NSR0320MW2 datasheet (onsemi) |
| × 1 | SMD LED0603 · orange | ORANGE | CHG | |
| × 1 | SMD LED0603 · red | RED | L | |
| × 1 | SMD RGB LED3535-4 | WS2812B3535 | LED1 | WS2812B datasheet (Worldsemi) |
| × 1 | SMD Tactile SwitchKMR2 | KMR2 | SW1 | |
| × 1 | SMD Tactile SwitchKMR2 | Mini RA Switch | SW3 | |
| × 1 | SOTSOT-23W | DMG3415 | Q3 | DMG3415U datasheet (Diodes Incorporated) |
| × 1 | SOTSOT-23-5 | MCP73831T-2ACI/OT | U3 | MCP73831 datasheet (Microchip) |
| × 1 | SOTSOT-23-5 | RT9080/AP2112-3.3 | U2 | RT9080 datasheet (Richtek)AP2112 datasheet (Diodes Incorporated) |
| × 1 | USB ReceptacleUSB-C | USB Type C | X6 | USB4105 USB-C datasheet (GCT) |
| × 1 | Wire-to-Board ConnectorPH side entry · 2 | JSTPH | X1 | JST PH datasheet (JST) |
| × 1 | Wire-to-Board ConnectorSH side entry · 4 | STEMMA_I2C_QT | CONN1 | JST SH datasheet (JST) |
Variations
Feather 32u4 AdaloggerAdafruit
Feather ESP32 V2Adafruit
Feather ESP32-S2Adafruit
Feather ESP32-S3Adafruit
Feather HUZZAH ESP8266Adafruit
Feather M0 Bluefruit LEAdafruit
Feather M0 ExpressAdafruit
Feather M0 RFM95 LoRaAdafruit
Feather M4 CAN ExpressAdafruit
Feather M4 ExpressAdafruit
Feather RP2040Adafruit
Feather RP2040 AdaloggerAdafruit
Feather RP2040 CANAdafruit
Feather RP2040 DVIAdafruit
Feather RP2040 Prop-MakerAdafruit
Feather RP2040 RFM69Adafruit
Feather RP2040 USB HostAdafruit
Feather RP2350Adafruit
Feather nRF52840 ExpressAdafruit
Feather nRF52840 SenseAdafruit




