Hi Hobby-Guy - thank you for the reply. In the meantime I did make some progress but are still not there. I am going to cut out the ESP and just see how the program responds. Then I will put ESP program source back bit by bit. If I ran into another problem I shall surely post the code and circuit fo...

I am building a DieselLogger unit which record and upload the fuel filling transactions. The systems works perfect for approximately 15 times then suddenly it does not upload the transaction and corrupt some fields in the memory. I need then to setup the tank again also the wifi credentials. My hard...