Hi, I have the Grove LCD RGB from Seeed and I am trying to use node-red-contrib-i2c to display text on it. There are 3 nodes: one to scan for devices on i2c bus, one to retrieve data from a device, and one to send data to a device.
This seems simple enough, but I cannot seem to configure the sending node properly to send text to the display.
When I use the scan node, I get back an array [62, 98, 112] and it definitely detects the presence of the LCD display (I have nothing else on the i2c bus). But I have no idea how to configure the sending node.
The parameters are as follows:
Address: (seems to want a decimal value, not hex)
Command: (seems to want a decimal value, not hex)
Send Bytes: 1? 2?
I’ve spent hours trying too make this work, but no joy. I would be very appreciative if someone could shed some light on this. I love Node-RED, it is so easy to work with, but this one has me stumped!