the project is getting json from weewx on a pi to the interstate 75 and then displaying the relavant weather info on 64x32 (2mm pitch) HUB 75 LED panel, for my 80 year old father inlaw so,he can see it at a glance and not have to go to the computer to look at the web page all the time.
I have 2 interstate 75s and and a W version of the same board.
The orignal interstate 75s have no wireless and I have not been able to find a CCT diagram of it but, i have found one of the W version.
Both the boards have an RGB led taking up 3 pins , I was going desolder the Led and the resistors and use the UART port that the Led was connected to and use anESP 8266 -01 to Rx the data from weewx.
But this morning while at work , mopping the floor (my job as a commerical cleaner) I had a brain storm with using the piico dev 915mhz radios to move the data via the I2C connector on the interstate , which is only text and the 2040 would parse and display the info on the panel .
I2C will be fast enough to do this and the info only updates every 5 mins.
Does anyone think there will be some pit falls with this setup ?