Battery powered e-Paper Monitor

prusaprinters

<p>To close the to halves, push a piece of filament through the holes on top. The small slot in the top middle is for gripping to a nail.</p><ol><li>Desolder the pins on the bottom of the ESP8266 driver board.&nbsp;</li><li>Then hook up a Li-Ion charger module and battery to Vin and GND. To get battery readout, connect A0 and and Vin with a 100k resistor.&nbsp;</li><li>To enable deep sleep short D0(GPIO16) to RST.&nbsp;</li><li>The display is a tight fit, to be sure it works the first time, lower the extrusion multiplier or slice at 100.5% size.</li><li>The charger module is held in place with strong double sided tape (eg. Tesa 4965)</li></ol><p>The driver board has NO PROTECTION DIODE between Vin and Vusb!!! Always disconnect the battery before plugging in usb on the driver board!&nbsp;</p><p>It's using 24mA when idle, ~70mA when refreshing and 1.4mA when in deepsleep. With hourly refresh I get about two months of runtime.</p><p>This is what I used:&nbsp;</p><ul><li>2x <a href="https://www.berrybase.de/strom/batterien-akkus/industrieakkus/lp-785060-lithium-polymer/lipo-akku-3-7v-2500mah-mit-2-pin-jst-stecker">https://www.berrybase.de/strom/batterien-akkus/industrieakkus/lp-785060-lithium-polymer/lipo-akku-3-7v-2500mah-mit-2-pin-jst-stecker</a></li><li><a href="https://www.berrybase.de/strom/batterien-akkus/ladegeraete/ladeplatine-f-252-r-3-7v-liion/lipo-akkus-mit-ausgang-usb-type-c-buchse-l-246-tpads-1000ma?c=97">https://www.berrybase.de/strom/batterien-akkus/ladegeraete/ladeplatine-f-252-r-3-7v-liion/lipo-akkus-mit-ausgang-usb-type-c-buchse-l-246-tpads-1000ma</a></li><li><a href="https://www.berrybase.de/sensoren-module/displays/epaper-displays/7.5-800-215-480-epaper-display-hat-f-252-r-raspberry-pi-v2">https://www.berrybase.de/sensoren-module/displays/epaper-displays/7.5-800-215-480-epaper-display-hat-f-252-r-raspberry-pi-v2</a></li><li><a href="https://www.welectron.com/Waveshare-14138-e-Paper-ESP8266-Driver-Board_1">https://www.welectron.com/Waveshare-14138-e-Paper-ESP8266-Driver-Board_1</a></li></ul><p>&nbsp;</p>