L293

First custom PCB

First custom PCB

This is my first working printed circuit board. I used the toner transfer method to draw the traces on the copper board. The purpose of this circuit board is to drive a stepper motor. This is a proof of concept for the final board version that will complete my equatorial mount project. The equatorial mount will […]

Twitter Controlled Robot

Twitter Controlled Robot

I presented this project at the 28th Montréal Python meeting. I posted the slides of the presentation in my previous post here. The objective of this project was to demonstrate the use of  pyserial and XBee to wirelessly control a robot. This project was also my first attempt at using the Tweepy library. The requirements […]

Arduino Motor Controller Using an L293D Chip

Arduino Motor Controller Using an L293D Chip

Controlling DC motors is at the heart of many robotic projects. Servo motors are sexy but DC motors are cheap and a lot more useful to control wheel based robots. In this article I’ll display a “robot shield” circuit that allows you to use cheap motors to drive your robot. Wiring This shield has been built on […]

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