Cytron PS2 Controller Library

[akshatha-k]

Task Priority : HIGH

Task Description Library for a PS2 Controller to read joystick values and get desired angle and speed for bot motion.

Person assigned: @akshatha-k

Original Cytron PS2 Shield library reference: here

Must Haves

• [x] Initialise software serial
• [x] Function to calculate angle and speed of the desired motion from analog joystick values.
• [x] Function to map the values from a circular space to a square.
• [x] Compatibility with buttons to expand its function to toggle modes/start/stop etc.
• [x] Have a function that neglects readings from a circular inner region.
• [ ] Compatibility with Other Hardware Serials.

[akshatha-k]

Tried to solve the equations to map a square to a circle as the values not lying on the axis were reported to be higher , using the approach followed for a unit square to circle mapping here But the equations for the transformed co-ordinates were solutions of quadratic and bi-quadratic equations respectively. Hence, the code is mapped to modify all values greater than 127 to 127.

[TheProjectsGuy]

Compatibility issues

• Debugger implementation is out of date, please use the DebuggerSerial library from the dev branch (link here)
• Documentation fixes:
  • README has no mathematical proof or proper help for code.
  • README points to the DATA folder (for image links) that no longer exists on the master or the dev branch. Replace it with .DATA/Images (the folder is now hidden).