Hey guys iam a 4th year engineering student n i want to design a 26 way ribbon cable tester .
Can any one help me with ideas on how to do it with a pic and it should have 26 green leds and one red led to give the status of the cable as
1. good then all green leds light up
2. shorted cable then red led lights up
3. missing connection then that particular led will not be lit related to that wire in a ribbon cable
4. if ribbon able is crimped the wrong way then red led will light up with a beeping buzzer
so could any one please help me with any ideas on how to do it in proton pic basic using a pic or any other advise is appreciated
Hi,
This is a very easy project with Pic micro controller. First you choose a Pic with > 26 pins. Say, Pic 16F877A with 40 Pins. Then you use 26 green leds for 26 connections. One red led for short circuit indication and one separate green led to indicate all good.
Then start sending signal to all leds. No. 4 is not clear and probably not required.
Make separate sub-routine for all the requirements.
You can do this project with Pic with less no. of pins with shift register, but that is complicated for you. Better do with Pic 16F877A.
If you are acquainted with Pic, you can do it easily. If unable to do, let me know and I will make it for you.
