EEVblog Electronics Community Forum

EEVblog => EEVblog Specific => Topic started by: septer012 on January 01, 2010, 06:42:24 pm

Title: Re: EEVblog #51 – A tour of the EEVblog Electronics Lab
Post by: septer012 on January 01, 2010, 06:42:24 pm
If any one wants a simple project, maybe a student?  You can try to assemble this logic probe:

(http://www.danielbjohnson.net/assets/Project_Images/sprobe.png)
Code: [Select]
Resistor: Value (ohms):
R1, R4, R5, R6     1 M?
R2, R3           100 K?
R7            330 ?

An an 8 pin dual op-amp IC tolerant to 5 volts.
Red/Green two color LED

It is tri-state( Red High, Green Low, Orange signal )

source: http://www.swansontec.com/sprobe.html