I recently bought two IoTaWatts for a home monitoring research project. Let’s call them left and right.
The left failed completely about a week ago, with the SD failure mentioned in other posts. As such, I bought a couple of new SDs (SAMSUNG 32GB Evo Plus Class 10 Micro SDHC). I followed the steps in: Building a new SDcard and it worked like a charm, and the system is up and going without a hiccup.
For the right system, although they were of the same batch, I did not get any problems until a couple of days ago when it was showing a green light but it was not accessible or posting any data on the server for two days. I am not sure if this was caused by the SD but as a safety measure, I decided to follow the same procedure I did with the other one and change the SD. However, both when I copied the previous config file or used the basic installation one, I would get the G-R-R-G error (no config file found). Any thoughts on what might be causing this? I have since put the original SD that came with the system back into the IoTa and the system is working fine (for now?), but I am baffled by this lack of config file error.
Any help is appreciated,