I am preparing bits for my robot, and one of the things I wanted to toy with is robot drive, and accelerometers.
I am software engineer (I know, booooo), but I started as a young electronics guy. So I like to develop electronic bits the same way I approach software.
In small, manageable bits that I can test, and toy with - before putting together full design.
Here's a simple schematic of one of the parts, the idea is that if the probed voltage is below half point, one LED will be on, otherwise second one will be on.
This will then drive H motor driver, and will see if it will work.
Here's the schematic of it:
![](http://zlew.org/projects/LM339_two_leds.png)
Anywaaise, here's video
Please let me know what you think, throw any comments - common sense applies of course.
But I am very interested to know what you think. Like I said, I'm software guy by day - wanna learn more about electronics by evenings.