Let's Make Robots!

Reading wheel encoders

Hi folks

I’m looking for an efficient way to read wheel-encoders and have read a bunch of articles on the subject.

Including OddBots very fine article: http://letsmakerobots.com/node/24031.

My first idea was to use an old pc mouse utilizing ps/2 library with arduino. I made some mechanical parts to let mouse encoder shafts read the rotations of the wheels.

3d printer filament

Hi everybody

I just bought a 3D printer. Can anyone recommend a good shop for buying filament in europe. 

  It's always funny to examine techniques at the edge of one’s knowledge. And for all MCU nerds, it’s a challenge to see how much you can make the MCU do. This … Read more
Shift registers has been mention again and again to free pins for both input and output. This is just another example. I need a LCD display, some buttons, sd card … Read more
Follow light, bump into walls and beeps and blinks
Using a
Hi - I made this mostly wooden bot in 2006. I used a couple of small scrap motors. Maybe I had them from tape recorders. As I had no experience I started without … Read more

Can one Arduino resent serial com to another Arduino?


Can one Arduino receive serial communication via USB and then resent it to another Arduino via tx rx pins?