MR6 robot modified for autonomous operation.

# -------------------------------------------------- Introduction ---------------------------------------------- #
# The MR6 differential drive robot is based upon the hardware design by thingiverse user timmiclark. All links
# provided below are current as of 8th February 2026.
#
# Aim is to achieve autonomous navigation tasks including object and hazard avoidance, line following and platform
# to platform communication (where more than one robot is involved).
#
# Robot chassis design.
# Requires access to a FDM 3d printer (or outsource based on available .3mf / .stl files)
# - https://www.thingiverse.com/thing:2753227
#
# modifications/additions include:
#
# MicroController: Raspberry pico W. More info available via:
# - https://www.raspberrypi.com/documentation/microcontrollers/pico-series.html
#
# DC brushed low power Motor Driver: Makerverse Motor Driver 2 Channel
# - https://core-electronics.com.au/makerverse-motor-driver-2-channel.html
#
# Laser rangefinder: PiicoDev Laser Dist