"Steve" won second place in the over £75 category. Not fast and not massive, but good at most of the challenges. Hurrah!
Saturday, 6 December 2014
Given two bys, due to competitors failing to present themselves, we entered straight in to round 3 against another Dagu Rover 5. Flashy Rover was built and run by one of our suppliers, Dawn Robotics. Evenly matched for some time, we managed to get under them and once in their back, it was game over.
Round 4 beckons.
Three point turn was interesting. Our practice run was a farce as the robot jiggled on the spot and then stopped. It turns out, upping the main control rate meant it was checking the distance remaining from the last command before the Arduino had processed it. This meant it always saw zero and ran all the motor commands in quick succession. A quick code tweak later and we were back in business. I thought our proper run was pretty poor, but the judge was happy and declared we were third so far that day!
Straight line speed test was a good as we could manage as our robot is quite slow.
The obstacle course, again, was about as good as we could do. No penalties and all obstacles cleared in 45 seconds would have been good in the morning, but a recent run at 25 seconds had set the bar very high.
Now we wait for the sumo, with a fresh set of cells in hand. Fingers crossed!
- Line Following, autonomously
- Drive up to a wall without hitting it
- Chase a ball through a goal
- Drive flat out in a straight line
- Do a three point turn, autonomously
- Sumo challenge
- Code quality
- Obstacle course
Right now it's 10:40am and the we're up on the line following course at 10:55. I haven't seen many other tracked robots, so we're hopeful about the obstacle couse - assuming we survive the Sumo and don't blow the H-bridge!
The specs of our robot, named Steve for reasons we don't remember, are:
- Raspberry Pi B+
- Arduino Pro Mini (5V / 16MHz)
- UBEC switch mode power supply
- 6x 2500mAh AA Ni-MH cells
- L298N H-bridge board
- Seeedstudio Ultrasonic ranger
- Raspberry Pi Camera
- Dagu Rover 5 Chassis
- SparkFun Nokia 5110 LCD
Wish us luck!