Refer to this page for more useful technical info.
- The cheapest way to get spare parts is to take apart old and unused electronics. (Eg. press-buttons from a broken calculator, motors and RF modules from old RC cars, etc.)
- Proper indentation always helps when debugging code. Commenting at important sections also helps to identify glitches quickly.
- Faulty hardware accounts for over 50% of the problems.
- When soldering multiple wires and bunching them together in a single cable, it’s always safer to use heat shrink tubing compared to electrical tape.
- If a python code which uses GPIO pins is not running on a Raspberry Pi, it’s probably because another process which started earlier is using the same pins. Try running ‘sudo killall python’ and then execute the new code.
- ATV’s should have thick tyres because thin wheels tend to cut through sand easily.
- The chassis of a racer should be lightweight and strong.
- Hot glue sticks almost anything. It secures electrical and mechanical connections well, and can also be removed easily without much scraping.
- Autonomous robots tend to skid if their motor’s rpm is high (greater than 250). A good way to prevent this is to incorporate a reverse command with a small delay of 100 to 1000 milliseconds, depending on weight and speed of the robot.
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