Can save values even after review different problem ?

[dudman]

The "Basic Settings" for current & Voltage Monitoring allow me to save, but then those settings are not displayed, seeming as though they havn't been saved. In the logs modbus90_date.csv I get empty values 2022-08-08 00:00:24,0,0.0000,0.0000,0,0,0.0000,0,0.0000,0

When I power up the shunt I get 4 green flashes, then regular red, I bought it pre wired/programmed from a guy on the forums along with a controller which is also work well. So I'm assuming its working right now ? The UPDI -> + gives a stead 5v....

[stuartpittaway]

Might be worth checking you have the latest code on both controller and shunt