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+--- Thread: Lesson19- how to use PCF8574 IIC extend GPIO for ESP32 multi relay (/showthread.php?tid=834)
Lesson19- how to use PCF8574 IIC extend GPIO for ESP32 multi relay - admin - 10-09-2021
Arduino IDE source code:
PCF8574-DO.zip (Size: 771 bytes / Downloads: 743)
RE: Lesson19- how to use PCF8574 IIC extend GPIO for ESP32 multi relay - Patrick - 11-11-2021
had to change variables pins_in arduino.h (as suggested in video) for SDA =4 and SCL=5 from original values.
everything works great.
video upload of kc868-a8 relays performing would not work.
couple of pictures to suffice.