CNC Controller PCB, rev. 1

I had been looking for ready made do-it-all CNC controllers online for quite some time, but it seemed like the most affordable ones had some issues with optically isolating the…

Bluetooth robot BT-Bot

Please see this post Bluetooth controlled DC motor, BT module review for a more in-depth demonstration of the Bluetooth part. For the past weeks I have had this robot to…

Bluetooth controlled DC motor, BT module review

This post will explain in detail how I control the speed and direction of the DC motor in the video below by bluetooth. First, here is the list of items…

L298 breakout module

I want to get deeper into the robotics scene, and need some sort of “base” to experiment from. So I bought the AREXX Mr. Basic 4WD robot/car chassis from DealExtreme.com…

Dual comparator temperature check instrument

This is an easy build for most novices, and is a great beginners project for those who wants to learn how to solder, or have very few components at hand….