Tag Archives: quadrature

PID Tuning For Zumo

With the encoders working it’s time to tune the PID controller for driving in straight lines.

Building Zumo – Part III

Completed the Zumo hardware side and got the encoders working but then hit a road block trying to get the motors to turn…

Say Hello To My Little Friend – Zumo Part I

Decided to build the Pololu Zumo chassis with their optical encoders.

Still need to figure out a circuit to convert the encoders’ analog signal to digital.

Data vs Reality

I’ve implemented a PID-based closed-loop system to ensure my bot travels in a straight line.

The data says it is going straight, however, in reality it seems to be deviating quite a bit.

Mighty confused.

Wheel Encoders For WallBot

Adding wheel encoders to WallBot ended up being more work than I thought. I ended up writing all the code from scratch but it meant I learnt a lot about encoders and timer interrupts on the microcontroller.

WallBot – Version 2.5

WallBot got a new motor controller and quadrature encoders.

Integrating the new motor controller raises some software issues….