Hi Everyone!
I have attached an image to here of a schematic made in fritzing for a line following robot sorry it counldn’t produce a schematic. We do Elementary School Robotics so bare with me. The robot works fine and can run it’s course but…
My issue is when only one of the sensors activate it turns on both LED’s! It should be that when an IR sensor is activated it switches the corresponding TIP125 and turns on the corresponding Motor and LED not both LEDs.
Hopefully to be more clear I want the circuit to only turn on the LED for the corresponding TIP when that motor is running, instead it turns on both whenever any motor is running. I rebuilt the circuit without the 555 timer motor speed controller and the problem goes away. What about the 555 timer causes this? Here is the datesheet:http://www.kynix.com/uploadfiles/pdf9675/LM555CM.pdf
FET N is a TIP120 and FET P is a TIP125.
2AA pack we are using a 6 AAA pack.
Thanks for any help!
