Checkpoint 9:
Waterproof your Arduino-UNO or Arudino-Mini
In a previous version of this
class we used an Arudino-Mini microcontroller as the
brains for our ROV. The advantages of
the Mini was that it is less expensive, much smaller and still could do the
same job. The disadvantage of the Mini
was that it doesn’t have as many data ports and it is very easy to accidently
destroy.
If you are feeling
adventuresome and don’t have any major finals looking on the horizon, I will
give you a Mini. All of your UNO
programs can be transferred to the Mini and it will work in the same way.
The
Arduino-Mini vs. the Arduino-Uno
Reversing the polarity of the
supply voltage to the Mini is the most common way people have fried their
Mini’s in the past – I thus strongly suggest that, before you do anything, you
put a diode in on the power supply line to help protect against mistakes.
This term (Fall 2013) we also
have supplies for you to make an AUV instead of an ROV. It might be fun to purchase a few extra
motors and accelerometer so that your ROV can go up, down, forward, backward,
right and left. If you want to be an ROV
team developer, I might purchase some parts for you.