I'm testing the circuit I got from this site: Led display digital Voltmeter
But when I turn it on (with no input voltage) all it displays is '-1666', and then after about 10sec it goes to '-000' or ' 000'. Putting in an input voltage and adjusting the pot makes no difference, it just keeps displaying ' 000'. What could I have done wrong?
But when I turn it on (with no input voltage) all it displays is '-1666', and then after about 10sec it goes to '-000' or ' 000'. Putting in an input voltage and adjusting the pot makes no difference, it just keeps displaying ' 000'. What could I have done wrong?