Electronic Event Listing Panel Project

Brief Description

The idea would be to use a lower power, E-Ink display to create a list of upcoming hackspace events. The purpose of the project is to increase awareness and therefore attendance of Hackspace events.

Bill of Materials

• 7.5" 3-colour E-Ink Display £40 aliexpress
• Universal E-ink panel driver with ESP32 onboard - £13 aliexpress
• USB Power supply
• Enclosure - Laser cut acrylic

A list of the persons that will be contributing

• Peter
• Nathan
• Tom

An estimate of the expected time to completion

Before November 2019

Notes

• Original estimate included using a RPi-ZeroW but the ESP32 board is lower powered and can be battery operated as an alternative.
• Approved by Alice, Tim, Andy, Tom abstained.
• Parts ordered 2019-05-08

Hardware Setup

• Connect display to Waveshare ESP32 module (with the ribbon cable the correct way round)

Software Setup

• GxEPD2 Community Library
• Requires a special example, as the Waveshare board has different SPI pin mappings

Proposed Workflow

• Use the Open Tech Calendar JSON Download to get a list of events
• Filter out the next 4 events
• Push event data to UI

Software

• The software for the panel eink-eventlist
• Events 'API' (light proxy to access a subset of the events from Open Tech Calendar) eventlist-api