Running Volumio on Raspberry Pi B with IQ Audio Pi Dac. I’ve been able to successfully connect an hd44780 compatible LCD screen and get track info output via mpdlcd. Since the IQ Audio Dac exposes i2c (SDA, SCL) pins I’d much rather use these for LCD output. I purchased an LCD i2c backpack from Adafruit and successfully tested it by hooking it up to an Arduino.
I’ve followed all the steps to install necessary software and ran i2cdetect…display was detected at port 0x20. I edited LCDd.conf to reflect “i2c” connection type as well as “/dev/i2c-1” as the device. Unfortunately I get no output to the LCD except a row of solid blocks. Not sure what I’m missing or doing wrong. Any help would be appreciated.
I think the Adafruit i2c backback uses the mcp23008 chip.