Building an e-Ink bed-side clock
Youtube Video:
This is going to be an alarm clock that has zero light emmissions and highly configurable.
It's going to be built from a Raspberry Pi zero W as it's underlying computer and a 6" e-Ink display.
Raspberry Pi Zero W
https://www.raspberrypi.org/products/raspberry-pi-zero-w/
https://www.waveshare.com/6inch-e-Paper-HAT.htm
Features:
- No backlight, keeps displaying last content for a long time even when power down
- Low power consumption, basically power is only required for refreshing
- Standard Raspberry Pi 40PIN GPIO extension header, supports Raspberry Pi series boards
- USB/SPI/I80/I2C interface, for connecting with host boards like Raspberry Pi/Nucleo, etc.
- Comes with development resources and manual (examples for Raspberry Pi/STM32)
Specifications:
- Operating voltage: 5V
- Interface: USB/SPI/I80/I2C
- Outline dimension: 138.4mm × 101.8mm × 0.954mm
- Display size: 122.4mm × 90.6mm
- Dot pitch: 0.153mm × 0.151mm
- Resolution: 800 × 600
- Display color: black, white
- Gray scale: 2-16 (1-4 bit)
- Full refresh time: <1s -Total refresh power: 0.6W(typ.)
- Total standby power: 0.3W(typ.)
- Viewing angle: >170°
https://www.waveshare.com/product/modules/oleds-lcds/e-paper/7.8inch-e-paper-hat.htm
Features:
- No backlight, keeps displaying last content for a long time even when power down
- Low power consumption, basically power is only required for refreshing
- Standard Raspberry Pi 40PIN GPIO extension header, supports Raspberry Pi series boards
- USB/SPI/I80/I2C interface, for connecting with host boards like Raspberry Pi/Nucleo, etc.
- Comes with development resources and manual (examples for Raspberry Pi/STM32)
Specifications:
- Operating voltage: 5V
- Interface: USB/SPI/I80/I2C
- Outline dimension: 173.8mm × 127.6mm × 0.78mm
- Display size: 158.184mm × 118.638mm
- Dot pitch: 0.0845mm × 0.0845mm
- Resolution: 1872 × 1404
- Display color: black, white
- Gray scale: 2-16 (1-4 bit)
- Full refresh time: 450ms
- Total refresh power: 1.2W(typ.)
- Total standby power: 0.1W(typ.)
- Viewing angle: >170°
