Introduction: Cheap Cabel/Wire Tester
This is a very simple yet very useful little gadget. Anyone can make it for 1$(or less). This is really good for beginners and it can help you troubleshoot. Yes you can buy one ore use the multimeter, but whats the fin in that?
Step 1: Parts You Will Need
1x 3 volt battery pack
1x Light Emitting Diodes (also known as LED)
2x Something for the probes(ex. Alligator clips, plugs)
Optional is something to put it in(I used a speaker grill that i had laying around, It looks fancy :) )
If you want to make a multi channel one like i did you are gonna need as many times LED's and Plugs(or whatever you are using)
1x Light Emitting Diodes (also known as LED)
2x Something for the probes(ex. Alligator clips, plugs)
Optional is something to put it in(I used a speaker grill that i had laying around, It looks fancy :) )
If you want to make a multi channel one like i did you are gonna need as many times LED's and Plugs(or whatever you are using)
Step 2: Assembly
Here is the schematic
And there is another picture for those who are just starting
And there is another picture for those who are just starting
Step 3: Optional Adding a Case and Finishing
I added a cheap computer speaker grill i had laying around so i used that. I drilled the holes for everything and added the parts. There is a picture of it finished. I used hot glue to secure the bat pack and the wires. To use this device connect the wire/cable to one probe and the other probe to the other end of the wire, if the led lights up your good the wire/cable is good. to make a multi channel one connect the circuit in parallel
All done enjoy
Sorry if my English isn't the best
--Valentin
All done enjoy
Sorry if my English isn't the best
--Valentin