Uploaded December 2024 | Updated September 2026, 8 hours ago

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In this video, I will cover some basics of i2c communication and I will demonstrate some code where I communicate with a sensor by sending instructions to it and reading values from it. The CH32 code examples don’t have any transmit and receive functions implemented that we can find in the Arduino IDE as Wire.read() and Wire.write(), so one of the first things to do will be to implement these. Then the rest is easy because we just need to use these two functions to send and receive data from an i2c device.

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Article: https://curiousscientist.tech/blog/ch32v003f4p6-i2c-basics
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Parts and tools: https://curiousscientist.tech/tools