3dIAfZotY5

Temporary parking ink display number plate

Overview

I have a few spare e-ink screens and several PY32002A chips (100% compatible with the Hezhou AIR001; I didn't buy them when they were 10 for 1 yuan, but now the shipping is too expensive). I'll use them all to make a simple electronic parking sign.
Note: The code in the file is for Board1. Due to some strange and difficult-to-reproduce issues with the AIR001's hardware SPI, the SPI pins in the code are simulated using software.
Note 2: The code is messy and disorganized; I'll upload a new version after I have time to organize it.
Note 3: The shell file is not well-suited for use; do not print this version.

The phone number can be set via buttons (PA5 and PA6). This e-ink screen can be used for partial printing, so a flashing indicator is used to show the currently set number. A simple demonstration is shown in the video:

Design Files

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Update:2026-03-26 01:22:59

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