New programmer here. I am trying to make an LCD display analog data from sensors. However, when I run my code, everything but the LCD turns on. Attached is a schematic of the circuit, and my code is below #include <LiquidCrystal.h> LiquidCrystal lcd(7, 6, 5, 4, 3, 2); int blueLed = 10; int greenLe…

LCD not turning on. Voltage problem?

Paul_B October 12, 2021, 9:03pm 2

Your diagram shows pin 3 - "Vo" - connected to 5 V. It should be connected to ground, preferably through a 1k variable resistor to adjust contrast.

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LCD not turning on. Voltage problem?

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