
Easy e-paper finally comes to your Feather, with this breakout that's designed to make it a breeze to add a monochrome eInk display.
FeatherWing SPI MOSI pad, sends data from the controller to SD card, SRAM, and eInk display per Adafruit Learn pinouts
FeatherWing SPI MISO pad, used by the SD card and SRAM; eInk display itself is write-only per Adafruit Learn pinouts
FeatherWing SPI clock input, required for eInk display, SRAM, and SD card per Adafruit Learn pinouts
SD card chip-select; Adafruit maps this FeatherWing signal to Feather pin D5 on common Feather boards
SPI
Module pins: MOSI, MISO, SCK. Schematik maps them to your board in the app.
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SRAM chip-select for the onboard RAM; Adafruit maps this FeatherWing signal to Feather pin D6 on common Feather boards
eInk display chip-select; Adafruit maps this FeatherWing signal to Feather pin D9 on common Feather boards
eInk display data/command control; Adafruit maps this FeatherWing signal to Feather pin D10 on common Feather boards
eInk reset is tied to an auto-reset circuit and the Feather reset pin per Adafruit Learn pinouts
eInk busy-detect signal available on a breakout pad; optional if firmware uses fixed delays per Adafruit Learn pinouts
| Pin | Position | Type | Function | Voltage |
|---|---|---|---|---|
| MOSI | Feather SPI | spi | FeatherWing SPI MOSI pad, sends data from the controller to SD card, SRAM, and eInk display per Adafruit Learn pinouts | |
| MISO | Feather SPI | spi | FeatherWing SPI MISO pad, used by the SD card and SRAM; eInk display itself is write-only per Adafruit Learn pinouts | |
| SCK | Feather SPI | spi | FeatherWing SPI clock input, required for eInk display, SRAM, and SD card per Adafruit Learn pinouts | |
| SD CS | after I2C pins, first chip-select pad | digital io | SD card chip-select; Adafruit maps this FeatherWing signal to Feather pin D5 on common Feather boards | |
| SRAM CS | after I2C pins, second chip-select pad | digital io | SRAM chip-select for the onboard RAM; Adafruit maps this FeatherWing signal to Feather pin D6 on common Feather boards | |
| EINK CS | after I2C pins, third chip-select pad | digital io | eInk display chip-select; Adafruit maps this FeatherWing signal to Feather pin D9 on common Feather boards | |
| EINK DC | after I2C pins, data/command pad | digital io | eInk display data/command control; Adafruit maps this FeatherWing signal to Feather pin D10 on common Feather boards | |
| RESET | Feather reset | reset | eInk reset is tied to an auto-reset circuit and the Feather reset pin per Adafruit Learn pinouts | |
| BUSY | busy breakout pad | digital output | eInk busy-detect signal available on a breakout pad; optional if firmware uses fixed delays per Adafruit Learn pinouts |