Eink-word-clock-watch: Difference between revisions

Revision as of 21:18, 13 April 2019

This is a research page for my project to make a watch with an e-ink screen displaying word clock.

e-eink module Requiring 3.3 V, SPI and has refresh power req. of 26.4 mW with standby power of < 0.0 17 mW
Coin cell** / lithium battery small enough? (if powerful enough)

Use a e-ink breakout board with the preferred $MCU to display a simple "hello world" text every three minutes and measure the power usage.

@@ Line 3: / Line 3: @@
 This is a research page for my project to make a watch with an e-ink screen displaying word clock.
-Requirements:
+=== Requirements ===
 * Refresh e-ink screen (ie. update word clock) every ~ 3 minutes
 * Be able to set the time or sync it via WiFi/Radio?
 * Capable or running for > one month
-Interfaces:
+=== Interfaces ===
 * SPI
 * Serial for debugging / flashing?
-Parts:
+=== Parts ===
 * [https://www.waveshare.com/1.54inch-e-paper.htm e-eink module] Requiring 3.3 V, SPI and has refresh power req. of 26.4 mW with standby power of < 0.0 17 mW
 * Coin cell** / lithium battery small enough? (if powerful enough)
 *
+=== Prototyping ===
+Use a e-ink breakout board with the preferred $MCU to display a simple "hello world" text every three minutes and measure the power usage.