2.9″ ESPaper Lite Kit, WiFi ePaper display

Description

WiFi ePaper display module

The 2.9″ ESPaper module displays data retrieved over WiFi on an ePaper display. The integrated ESP8266 Wroom-02 module updates the 296×128 black & which ePaper display over the SPI bus. The module also features a charging circuit for LiPo batteries and a JST connector. The passive nature of ePaper allows the module to run for weeks or even months from a battery on a single charge. Update frequency is almost exactly (inversely) proportional to total uptime. Tests showed a total uptime of several weeks for an update interval of 20 minutes.

ThingPulse also provides a WeatherStation sample application to be loaded onto this WiFi ePaper display kit. The application only requires a handful of parameters and is ready to go.

The open-source Minigrafx display driver library is also developed and maintained by ThingPulse. It offers examples for programming custom applications quickly.

Setup guide & support

A very detailed step-by-step setup guide for this WiFi ePaper display kit is available online. If you’re stuck ThingPulse provides help through the support forum.

Module hardware

• 2.9″ ePaper display 296*128 pixels, black & white
• Espressif ESP8266 Wroom-02 WiFi MCU
• JST LiPo battery connector and charging circuit
• 3 buttons for user interaction:
  • RST: wakeup the module from deep sleep, e.g. to refresh data
  • S0 FLASH/GPIO0: used to put ESP8266 in programming mode or for user menu
  • S1 GPIO 12: User interaction

Please note: for programming the module you need a separate USB-to-Serial converter which supports 3.3V. This module is compatible with the kit: Serial-To-USB-Converter on Banggood

Maximum rating

Do not expose the unprotected e-paper display panel to high temperature, high humidity, direct sunlight, or fluorescent for long. → data sheet

Operating temperature range: 0 – 50°C
Storage temperature range: -25 – 70°C
Humidity range: 40 – 70%RH

Avoid direct sunlight.

3D Printed Enclosure for ePaper module

The ThingPulse Lite Kit comes without enclosure. If you have access to a 3D printer you can download and use @MCUEclipse’s design from Thingiverse:

The customer also reviewed our WiFi ePaper display kit on his own site.

https://www.thingiverse.com/thing:2735091 is alternative design by a different customer.