PACERBOT Video Log Part 26-28: Seven Sensors
PACERBOT Video Log Part 23 – 25 : MORE SENSORS!
PACERBOT Parts 21 -22: Speed Controllers on the Track
Following the last post, I took the robot out to the stadium to check how it performs.
PACERBOT Part 17 – 20: The Last Encoder
How I transformed an IR sensor into an encoder, that enables the calculation of speed and distance.
PACERBOT Part 16 : Algorithm talk
PID is finally starting to work. Apparently the last issues were not entirely caused by bad tweaking but by “bad” coding as well.
PACERBOT Part 13-15: Stadium Runs
Some footage of the robot running in the stadium. The process of tweaking the PID values is tricky. Even after a long time working on these values, I have given up (for the day!) and stayed with slow speeds, which are easier to work with.
PACERBOT Parts 8 – 11: Custom Optical Encoder
Measuring speed can be done in many ways. I chose to build an optical encoder, to sense the frequency of the drive shaft’s revolutions, and calculate the speed by recording the time between pings.
Yorai 