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[Arduino IDE demo source code for KC868-A16]--#08-PCF8574-DO

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[Arduino IDE demo source code for KC868-A16]--#08-PCF8574-DO
lenguyentrong Offline
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#3
06-05-2024, 12:46 AM
Running this code, the relays are not able on/ off. Measure the voltage from opto coupler. they are just change from 3.3V to 2.1V (should be 0V). Please help.
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RE: [Arduino IDE demo source code for KC868-A16]--#08-PCF8574-DO - by lenguyentrong - 06-05-2024, 12:46 AM

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