Diode tester using PIC 16F84


Posted on Jan 31, 2013

This is a simple use of the PIC 16F84 about a diode tester. Test procedure : We set «1» to PB0 and «0» to PB3. If diode is ok and opens, then at PA0 we have «1». If PA0 is «0», then the the diode has problem. With the program we manage what the PIC will do in each situation . If PA0 is «1», green led lights wich means that the diode is OK and if PA0 is «0» red led is lighting and the diode is problematic


Diode tester using PIC 16F84
Click here to download the full size of the above Circuit.
Diode tester using PIC 16F84 - image 1
Click here to download the full size of the above Image.

Test continuous as follows: We give «0» at PB0 and «1» to PB3. If diode is OK and opens, then at PA0 is «1». If PA0 is «0», then diode has problem. If PA0 is «1», green led lights that means that diode is OK and if PA0 is «0» the red diode is lights that means the the diode is problematic.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

LW, MW and SW bands Receiver
Balanced Line Driver & Receiver
565Sca-demodulator
op amp Trouble transferring schematic (working) to actual circuit (not working)
Microphone Circuit-PC Sound Card
Laser Alarm
Car Battery Charger Circuit
28 LED Clock Timer
IR Remote Control Jammer With 2N4403 PNP Transistor
One light emitting diode display circuit



Top