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2.9″ ESPaper Lite Kit is a $40 ePaper Display Kit with an ESP8266 WiFi Module

September 28th, 2017 Leave a comment Go to comments

Squix (Daniel Eichhorn) has designed a 2.9″ ESPaper Lite Kite is a battery powered kit based on a black and white ePaper module, and ESP-WROOM-02 module based on Espressif Systems ESP8266 WiSoC.

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2.9″ ESPaper Lite Kit specifications:

  • Wireless Module – ESP-WROOM-02 WiFi module with Espressif ESP8266
  • Display – 2.9″ B&W ePaper module with 296×128 pixels resolution connect over SPI to ESP8266
  • Debugging / Programming – 6-pin serial port header
  • USB – 1x micro USB port for programming
  • Misc – 3 buttons: Reset (wake up from deep sleep);  S0 (flash/GPIO0); S1: user button connected to GPIO12; power switch; charging and (firmware) flashing LEDs
  • Power – JST connector for LiPo battery; charging circuit

You’ll need a 3.3V USB to TTL debug board for flashing the firmware to the board, and a LiPo battery to power it up. The solution is particularly useful if you want a battery powered display that is infrequently updated, since such display only consumes electricity when updated. They could run the module for several weeks with a 800m Ah battery while updating weather info every 20 minutes. MiniGrafx library provides drivers and samples for the board. It is available on Github.

The 2.9″ ESPaper Lite kit can be purchased for $39.90, but if you want something easier to get started you may want to get the 2.9″ ESPaper Plus Kit instead for $49.90, as it adds a USB to serial converter, a 600 mAh battery, an enclosure, and a USB cable.

  1. Jerry
    September 28th, 2017 at 22:33 | #1

    The screen is quite small. I prefer the bigger e-paper screens. E.g. the 4.3″ version. Needs more DIY skills though

  2. willmore
    September 29th, 2017 at 00:07 | #2

    That’s nicely integrated, but it’s quite a premium for that integration. As someone who is interested in ePaper, I’ve been looking for something like this, but at 2x the price of the parts, it doesn’t really appeal to me.

  3. Mario
    September 29th, 2017 at 05:11 | #3

    @willmore
    But looks pretty good. In fact, looks awesome for a fancy implementation.

  4. Lightwave
    September 29th, 2017 at 13:35 | #4

    Is I2C available somewhere to allow connect to local sensor?

  5. September 29th, 2017 at 13:39 | #5

    @Lightwave
    Sort of. You could solder it to the I2C pin on ESP-WROOM-02 module. See pinout diagram: http://www.quitsq.com/download/develop/ESP-WROOM-02_pinout_diagram.pdf

  6. September 29th, 2017 at 23:36 | #6

    @willmore
    pricing is a bit high compared to just a wemos d1 mini connected to an epaper module. There are cheap epaper modules on aliexpress or taobao.

  7. paul taraneh
    September 30th, 2017 at 04:30 | #7

    This project looks interesting, is there a basics guide for building this stuff, new to soldering stuff.

  8. willmore
    October 1st, 2017 at 08:49 | #8

    @zoobab
    Agreed. The marginal benefit from combining those parts is well less than the incremental cost of this device.

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