Let's Make Robots!

LV-MaxSonar Sensor Questions

Hello,

This is my first post here at LMR. I decided to write out a question in the format of a blog. Since I've had some trouble getting my head around this issue and I found limited resources regarding this special device on the Internet. Creating a blog post might help other people with similar questions as me. 

DESCRIPTION: This is my second robot, and my second balance-bot. With this robot I try to improve and learn. My goal is simple; understanding. Read more

Custom Motor Driver Debugging

Hello LMR!

I built a motor driver, look: 

motor_driver_1.jpg

Cool isnt it? Of course it doesn't work as intended, but hopefully you guys can help me fix that. Lets take a look at the details first, and afterwards my problem.

Updated with a 2nd video! Code is now uptodate and can be found at: code.google.com/protobot. Read more

DC motor control with Arduino

Ok, so i had this running just a few days ago, but then when i tried to assamble it didnt work out for me. Now I cant even get this simple DC motor running from the arduino, or to be more precise; the motor will run at a very low speed. Connecting it directly to my two 1.5 batteries it will run at full speed, but when trying to control it from the Arduino it wont work for me.

 Here is my setup:

simple_dc_motor_sch.jpg

and the code is dead simple: