prathyks
Newbie level 5
I needed help on using ULN2803. Like i wanted to drive some relays using uln2803. So how should i configure the uln.
The condition is i want to ouput 12 from ULN2803. I have provided ground to 9th pin and 12vcc to 10th pin. Now if i provide ground from microcontroller circuit. to input pins (i have shorted the ground from microcontroller circuit with 12v uln circuit). I am not able to get 12v output at output pins of ULN2803.
How to go about solving this problem.
Thanks in advance.
The condition is i want to ouput 12 from ULN2803. I have provided ground to 9th pin and 12vcc to 10th pin. Now if i provide ground from microcontroller circuit. to input pins (i have shorted the ground from microcontroller circuit with 12v uln circuit). I am not able to get 12v output at output pins of ULN2803.
How to go about solving this problem.
Thanks in advance.