Hoping to get some help. I am a high grade novice on arduino!!
So I am in to home brewing and needed to purchase a fermentaion fridge to assist me on the road to make fantastic beer from home!!
I purchased a fridge that came with a self made wifi temperature controller, it has an lcd sceen and runs with a esp8266MOD D1 mini. I plug the temp controller in and it has a fridge temperature preset that i cant change unless i connect to the D1 mini.
So here's my issue, i have connected the D1 mini to my computer via a usb (data cable) dowloaded the necessary drivers to Arduino IDE and followed the youtube steps etc.
But when i plug the D1 mini in, it gives a quick flash but i cant read what code is on it. My assumption tells me, if i can connect and change the ssid to my local network i can connect to it and change the fridge temp via an IP address. But nothing really happens when i connect it to the computer.
I am scared if i try to upload a blick file to see if the D1 mini work i might delete or overwrite what is already on it.
I appreciate all the help, and may have my wires completely crossed here, but hence why i am asking for help!!
You won’t be able to read the code on it - it’s compiled and unreadable .
The user manual or looking at what accessing it via wi fi might help.
You could buy another 8266 and start over , keeping the original
“ just in case “
Have you a link to your purchase?
Or do you mean the last owner build the temperature controller - in which case he is your only hope
Another option is to reprogram the board.
If you serach 'D1 mini thermostat' you'll find various ready made projects ( it is super simple afterall ).
You only need to be ( exactly ) sure which hardware you have:
temperature sensor
lcd/oled
relay
And which pins are used
P.S.
but as said doing this you will lose the original software
Search for wifi networks with your computer or phone. If you are lucky, that Esp makes an access point where you can connect. The default address is 192.168.4.1