Hi! I am trying to setup 2 LCDs, 1 by 1, with nodeMCU ESP8266, the first display is LCD1602 address 0x27, the scond is LCD 20x4 address 0x3F, all I get is a blank screen , its light, but no change. Pinout: D1 to SCL, D2 to SDA, Vin to VCC, GND to GND #include <LiquidCrystal_I2C.h> LiquidCrystal_…

ESP8266 nodeMCU

UKHeliBob April 4, 2024, 5:36pm 8

Where did that output come from ?

Have you tried running an I2C scanner on your hardware ?

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