Also at this moment, we are just considering a simple one-way, one-lane system, depending on our progression speed we will try to make it compatible with more complex traffic stop systems.
As a stretch goal, I’d like to add a mechanism to automatically reload the catapult with treats. I’d also like to add mechanisms to rotate the entire catapult as well as change the release angle, all controlled via the Wii Nunchuck or Termite terminal. Due to time constraints and reduced manpower, these functions will be implemented only if time allows.
Speed and cadence will be measured in the same way, with two-piece proximity sensors to measure revolution speed. One part of the sensor will be mounted on the bicycle frame and its counterpart will be mounted on the wheel in the case of speed measurement, and on the pedal crank arm in the case of cadence measurement. Both of these peripherals will be interfaced with UART to communicate with the microcontroller.
Brake temperature will be measured using the TC-74 temperature mounted on the bicycle frame in close proximity to the brake rotor. This information will help inform the cyclist whether or not it’s safe to touch the brake system if any maintenance is required. Much in the same way as was done in Lab 4, this peripheral will communicate with the microcontroller through I2C serial interfacing.
These three measurements will be displayed on the Discovery Board’s LCD, with the joystick allowing the cyclist to page through them.