ThePringler
Junior Member level 1
Hey guys,
I am building a little handheld digital temperature reader and display. I am using PIC to control it and a 9V Battery to power it.
My setup is simple. I have the 9V battery (positive) going through a switch and then going through a LM7805 voltage regulator. It then powers my PIC. I then have an LED tied to high with a 100 ohm resistor. My Problem is that the LED glows brightly but then quickly extinguishes (after about 15-20 seconds). My 9V Battery is brand new. Any ideas...?
Thanks!
I am building a little handheld digital temperature reader and display. I am using PIC to control it and a 9V Battery to power it.
My setup is simple. I have the 9V battery (positive) going through a switch and then going through a LM7805 voltage regulator. It then powers my PIC. I then have an LED tied to high with a 100 ohm resistor. My Problem is that the LED glows brightly but then quickly extinguishes (after about 15-20 seconds). My 9V Battery is brand new. Any ideas...?
Thanks!