bjan04 Posted Friday at 08:45 PM Share Posted Friday at 08:45 PM (edited) Hi there, recently I bought an Orange Pi Zero3 with 1GB RAM. I want to connect a 20*4 character LCD display(https://www.tinytronics.nl/en/displays/lcd/lcd-display-20*4-characters-with-white-text-and-blue-backlight-with-i2c-backpack) to it. I have previously used this display with Arduino UNO, which worked great. Now I want to use it with the Orange Pi Zero3 (Ubuntu 24.04). I have no experience with the Orange Pi or single-board computers in general. I followed some tutorials, but I couldn't make it work. I did this: Wiring: I2C Backpack Orange Pi Zero3 VCC Pin 2 GND Pin 6 SCL Pin 5 SDA Pin 3 Terminal: sudo apt-get install -y python-smbus i2c-tools user@orangepizero3:~$ sudo i2cdetect -y 0 0 1 2 3 4 5 6 7 8 9 a b c d e f 00: -- -- -- -- -- -- -- -- -- -- -- -- -- 10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 40: -- -- -- -- -- -- -- -- UU -- -- -- -- -- -- -- 50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 70: -- -- -- -- -- -- -- -- user@orangepizero3:~$ sudo i2cdetect -y 1 0 1 2 3 4 5 6 7 8 9 a b c d e f 00: -- -- -- -- -- -- -- -- -- -- -- -- -- 10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 30: 30 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 40: -- -- -- -- -- -- -- -- UU -- -- -- -- -- -- -- 50: 50 -- -- -- 54 -- -- -- -- -- -- -- -- -- -- -- 60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 70: -- -- -- -- -- -- -- -- It seems like the display cannot be found. How can I fix this? Edited Friday at 08:47 PM by bjan04 Added wiring details 0 Quote Link to comment Share on other sites More sharing options...
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