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karlelch

Senior Member

Joined: 30/10/2014
Location: Germany
Posts: 274

Posted: 06:11am 15 Apr 2023

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My MMBasic robot got an upgrade -- CO2 sensing.

https://github.com/teuler/robotling2/tree/main/code/mmbasic

Videos: Preview, Making-of

Thanks Geoff, Peter et al. for making MMBasic so powerful and fun

lizby
Guru

Joined: 17/05/2016
Location: United States
Posts: 3481

Posted: 01:30pm 15 Apr 2023

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Very nifty. Thanks for posting. What fine precision work.

PicoMite, Armmite F4, SensorKits, MMBasic Hardware, Games, etc. on fruitoftheshed

Mixtel90

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Joined: 05/10/2019
Location: United Kingdom
Posts: 8305

Posted: 02:34pm 15 Apr 2023

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I bet it's a pretty expensive kit - unless you have to 3D print everything, in which case it's even more expensive if you haven't already got a 3D printer. :)

Mick

Zilog Inside! nascom.info for Nascom & Gemini
Preliminary MMBasic docs & my PCB designs

karlelch

Senior Member

Joined: 30/10/2014
Location: Germany
Posts: 274

Posted: 12:14pm 18 Apr 2023

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Quote I bet it's a pretty expensive kit - unless you have to 3D print everything, in which case it's even more expensive if you haven't already got a 3D printer. :)

It depends on the "model"

The parts for the basic robot cost (in Germany) approx. 40-50 EUR; less, if you get a good deal for the servos and don't use fancy parts such as ball bearings. Parts like displays, ToF distance sensors and the CO2 sensor can be expensive - like with many electronic parts, this currently changes frequently depending on availability.

https://github.com/teuler/robotling2/wiki/Werkzeuge-und-Material (German, sorry)

There are mods with different (less expensive) parts

https://github.com/teuler/robotling2/wiki/Galerie

Of course, if you don't have a 3D printer, there'll be extra costs. But if you have access to a printer; the costs for the material are small.

Best
Thomas

stanleyella

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Joined: 25/06/2022
Location: United Kingdom
Posts: 2681

Posted: 08:12pm 18 Apr 2023

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That's very good. I got a 18 servo 6 leg walker but never got it working with battery and gcb and not picomite. I got a 3d printer so may try but looks ploddy. 3 feet down for support then 3 feet for new position

karlelch

Senior Member

Joined: 30/10/2014
Location: Germany
Posts: 274

Posted: 07:26pm 19 Apr 2023

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Quote That's very good. I got a 18 servo 6 leg walker but never got it working with battery and gcb and not picomite. I got a 3d printer so may try but looks ploddy. 3 feet down for support then 3 feet for new position

Thanks - well, the fewer motors, the ploddier (is that a word?).
I find that 12 servos is a compromise:

https://www.youtube.com/watch?v=64gpQUsmM1s

But for this one I used MicroPython. One may be able to port it to MMBasic but since this is a Pico board with additional hardware, it would probably not straight forward.

Best
Thomas

stanleyella

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Joined: 25/06/2022
Location: United Kingdom
Posts: 2681

Posted: 03:01pm 20 Apr 2023

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I never got mine to walk... just move it's legs. I will revisit the project using mmbasic.

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