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Forum Index : Microcontroller and PC projects : "Drivers" for BNO055, MCP3208, and Maestro

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karlelch

Senior Member

Joined: 30/10/2014
Location: Germany
Posts: 244

Posted: 07:31am 05 Sep 2025

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Hi,

for my long-term project (a 6-legged MMBasic-driven robot), I wrote a few hardware "drivers" that I'd like to share.

`lib_bno055.bas` for the BNO055 9-DOF absolute orientation IMU fusion sensor (e.g., this one)
`lib_mcp3208.bas` for the MCP3208 chip, an 8-channel 12-bit A/D converter
`lib_maestro.bas` for servo control via the Pololu 18-channel Maestro board

The code is found in my GitHub repository.

Best
Thomas

Volhout
Guru

Joined: 05/03/2018
Location: Netherlands
Posts: 5217

Posted: 08:57am 05 Sep 2025

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Thanks Thomas,

Did you implement the whole walking into the Maestro ? Impressive what you can do with it.

Volhout

PicomiteVGA PETSCII ROBOTS

karlelch

Senior Member

Joined: 30/10/2014
Location: Germany
Posts: 244

Posted: 09:35am 05 Sep 2025

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Hi Volhout,

Volhout said Did you implement the whole walking into the Maestro ? Impressive what you can do with it.

No, this is all done in MMBasic in a Pico 2. The sequencing features of the Maestro may be good for animatronics but IMHO not flexible enough to quickly change sequences e.g. based on sensor input. I used the Maestro as a convenient way of controlling 18 servos with a single serial command and not having to take care of power management.

Best
Thomas

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