Kate Manuel
Newbie level 1
I've connected this circuit on a breadboard and repeated it 3 times just to make sure that I did it correctly. However, when I plug it into the host PC and I actively increase the temperature of my PC to a high one (around 90degC), it doesn't beep. I also tried changing the VR1's reference voltage a few times. I know that there's power flowing through for there's static-like sounds from the speaker. I just don't know what I'm doing wrong. Any ideas?
(Here's the link to the circuit I'm trying to build: http://www.ecircuitslab.com/2012/05/pc-temperature-alarm.html)
(Here's the link to the circuit I'm trying to build: http://www.ecircuitslab.com/2012/05/pc-temperature-alarm.html)