I'm working on the temperature controlled LED project from the site
https://circuitdigest.com/electronic-circuits/temperature-controlled-le…
and I am running into the problem of only the RED LED glowing and not the YELLOW when the case should be the YELLOW LED is glowing and the red when heated. I have the circuit hooked up as it is described in the instructions.
In reply to Check if yellow LED is in working condition by Aswinth Raj
I mean that the red is glowing as soon as I hook up the power supply the red is heated. Instead of red the yellow should be.
In reply to Most probably the issue is by Abhishek
I've checked both of those. I will try to rebuild the circuit and see if anything changes.
Aswinth Raj
Joined August 16, 2016 1000Tuesday at 12:29 AM
Use a multimeter to check if the yellow LED is in working condition.
Also what do you mean by this line?