What follows are preliminary notes during the build of the __[KRZ03]__, a Mecanum-wheeled robot. 

It uses parts from the [KRZ01] and [KRZ02] robots and therefore supercedes (replaces) them. The most recent version is using a Raspberry Pi Zero 2 W, a Pimoroni Motor 2040 and TinyFX (for LEDs and sound effects).

[{Image src='attach/KRZ03/krz03-deck.jpg' width='1000' caption='The KRZ03 robot' align='center'}]

This photo shows an earlier version using a pair of PiconZero motor controllers that were used on the KRZ02, connected with a Mini Black Hat Hack3r. After contacting 4Tronix, they sent a customised Picon Zero that uses a different I2C address so that it's possible to use two on this robot without bus contention. A simpler alternative would have been to use the PiBorg [ZeroBorg Motor Controller|https://www.piborg.org/motor-control-1135/zeroborg], which has four motor controllers as well as a 1.5A regulated power supply.

[{Image src='attach/KRZ03/krz03.jpg' width='1000' caption='Earlier version of the KRZ03 robot' align='center'}]

[{Image src='attach/GPIO/raspberry-pi-pinout.png' width='600' link='https://pinout.xyz/#' caption='The Raspberry Pi GPIO Pinout (courtesy pinout.xyz)' align='center'}]
 


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[{Tag Robot RobotPrototype KRZ03}]