First time poster. Hope I do not mess up. I am trying to create my own I2C LCD circuit for a PCB and wanted to test the wiring in Tinkercad. I have used the attached schema and wired like in the image. (One 220 Ohm resistor is attached to the VCC-side of the LCD back light. Not in the schematic). …

LCD I2C wiring issue

jackflash80 March 15, 2024, 2:25pm 12

You are absolutely right. I should get a PCF8574 and build my own circuit. Thank you!

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