How to Make a Simple Logic Probe

in this video we will be looking at how to make a simple Logic probe.
you don't have to be an expert to make a logic probe in this video we will look at what logic probe is and how to use one. ending with how to make a simple logic probe for your self.

[@markgreco1962]

This was a great project, it took me about 1-1/2 hours did a professional looking build I used 3mm led’s and 1k ohm resistors all slides into a bic pen. I took the ink tube out and pulled the nib / ballpoint out cleaned with alcohol used 5 minute epoxy some silicone wires. Breadboard first of course and works great and looks great to. THANKS AGAIN

[@M4CHINE69]

For mine I used four 1k resistors and it helped with the LEDs staying off when nothing is probed

[@dpm2971]

This is a great little project that can also be quite handy. Please, would you mind posting a line-diagram for this probe including which pins to land on the Uno? Thank you.

[@ElectronsNeeded]

Hi there sorry for the very late reply i have been unable to find my diagrams for this ( i put it somewhere safe as you do ) but the Arduino i used the Blinky LED example from there web site the include diagrams on the web page.

[@joelsarmientoaresgado2290]

Do you diagram and the ratings of resistor and led,??? Also in 12v dc