Uploaded December 2024 | Updated September 2026, 2 days ago

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Let’s continue with the previous video's topic, I2C communication, but this time let's take a different approach. I show you how to implement a bit-banged I2C communication protocol and then I show you how to build a library for a miniature 0.42", 72x40 OLED display.

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Affiliate links:
CH32V003F4P6: https://s.click.aliexpress.com/e/_DdUKRAz
WCH-LinkE programmer: https://s.click.aliexpress.com/e/_DdUKRAz
0.42" OLED display: https://s.click.aliexpress.com/e/_omVq1Zd

Article: https://curiousscientist.tech/blog/ch32v003f4p6-i2c-bit-banging-oled-display
Resources: wch-ic.com/products/CH32V003.html
Parts and tools: https://curiousscientist.tech/tools