08 Oct, 2009
Posted by: mike In: Arduino| Electronics| Hal| How-To| Ideas| Robotics| Ruby
I’m using an infrared range sensor for the real life Hal.
The Sharp GP2Y0A02YK0F – Infrared Proximity Sensor Long Range -
While testing his motions, I was noticing some pretty erratic behavior, so I decided to collect some data on the sensor values on a fixed object, while Hal was not moving.
This is a graph of about [...]
07 May, 2009
Posted by: mike In: Robotics
Hooking up 2 electric drive motors seems like a simple task on the surface, but never is in practice. Here’s my mockup of a circuit I’m going to use. The meat of the control circuit is an L293D Quadruple Half-H Driver. Now that the breadboard prototype is working, it’s time to assemble the thing permanently [...]
I’m building a small robot this week. We’re calling him Evadotbot (Caleb came up with that).
He’s pretty simple, a two motor gearbox will control 2 wheels, the 3rd being a caster wheel so he can spin in a circle. He’s controlled by a simple motor controller chip and powered by 4 AA rechargeable batteries.
His “brain” [...]
