Perhaps the address is different on the physical hardware? Note that there are 2 versions of 8574 (with different addresses) also there are jumpers on some backpacks.
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Re: Pcf8574 i2c lcd
Perhaps the address is different on the physical hardware? Note that there are 2 versions of 8574 (with different addresses) also there are jumpers on some backpacks.
Last edited by towlerg; - 24th August 2017 at 13:23.
George
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