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EPDiy is a driver board which talks to affordable E-Paper (or E-Ink) screens, which are usually sold as replacement screens for E-Book readers. Why are they interesting?
Ready-made DIY modules for this size and with 4bpp (16 Grayscale) color support are currently quite expensive and / or slow. The EPDiy controller can drive the bare display modules, e.g. from old e-Readers, which are available for 20$ (small) / 30$ (large) on ebay! Additionally, since it is based on the ESP32S3 (V7) / ESP32 (V2-V6) microcontroller, it features WiFi and Bluetooth connectivity.
The EPDiy driver board targets a range of E-Paper displays, as shown in the table below. As the driving method for all matrix-based E-ink displays is more or less the same, only the right connector and timings are needed. The current V7 board has three different display connectors, other display will require an adapter board.
This project supports a driver for the ESP-IDF and Arduino. For installation instructions, please refer to the documentation. Note that for epdiy V7, update speeds are significantly lower when using the Arduino IDE, because it does not allow to change the sub-optimal cache configuration.
