habitat control help

hi all,

I am currently working on a habitat control project. As a newbie to arduino I am struggling.

so far I have written the hot and cold to run on “set” temps, with lcd Ic2 display working with relay outputs and it is working.

however, I have tried to create custom characters but they are displaying strange symbols on the lcd screen.
Also my main goal was to have the “set” temp changeable using two buttons “hot and cold” and a 10k pot. The plan was while buttonHot is pressed sensorValue is displayed on lcd screen and once buttonHot is released “set” temp is current displayed temp.

I have not got a sketch for this as working on it. however if the custom character sketch is needed I will upload.

Please help! :smiley: