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Thank you for posting this project. I am excited about getting to use the display to view battery voltages on a pack containing three 12V batteries. I have been able to set it up to display the voltages using a voltage divider circuit for each battery, but I was hoping to get some help in getting the displayed value set to a float. Ideally, I would like xx.xx resolution in the voltage readings. I have attached the sketch. I am new to this, so any help would be greatly appreciated.