After soldering 16 buttons into 8 columns and rows, [Jeff] connected this keyboard to a PFC8574a I2C I/O expander and connected this chip to the I2C bus on the Pocket Mini Computer. The result is ...
After soldering 16 buttons into 8 columns and rows, [Jeff] connected this keyboard to a PFC8574a I2C I/O expander and connected this chip to the I2C bus on the Pocket Mini Computer. The result is ...
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