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Demo LCD 4x20 I2C with pcf8574

Started by Pepe, May 21, 2023, 12:02 AM

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Pepe

Demo LCD I2C un proteus.
It uses the I2CPrintHardCommand.inc library published by dnaci

jam19857

Thanks Pepe, do you have an example for the use of matrix keyboard by i2c with the same expander?