LCD

STM32 MIDI Controller Part 1A: Wrestling with I2C, MCP23017, and a 16×2 LCD

This was one hands down the most challenging and frustrating part of the entire project, involving hours of staring at the reference manual for the STM32F103 microcontroller series trying to figure out why the I2C peripheral kept locking up. Maybe its just me, but the diagrams and explanations in the reference manual for the I2C …

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