plastic logic 4inch ink screen driver board

Overview

Preface

It was a project last year (week 52 of 2019). Today (week 18 of 2020) I was sorting out the debris and saw those dusty screens. I thought about it and decided to post this project. ~~Whim?~~I bought a few screens.~~Then we need to light it up and consume the 401 inventory.~~Hence this project.

Board resources

5V single power supply
TPS65185 eink dedicated PMIC
STM32F401CC microcontroller
25Qxx spi nor flash
24Cxx eeprom
mirco-usb interface

Microcontroller pin assignment

pin assignment.bmp

Physical map

I made two versions. The first version was missing two tubes of unknown purpose (?), but it was still usable. Because of my obsessive-compulsive disorder, I made another version and added a 25Q norflash. TIM screenshot 20200426133655.bmp

Bright screen code engineering accessories self-pickup

TIM screenshot 20200426135858.bmp

Thanks to a certain boss for his help in designing the hardware.

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Official source code; https://github.com/plasticlogic

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My salted fish link;**., not for sale, xjb is just having fun

Design Files

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Update:2025-08-05 02:00:49

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