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  • Author Author: dougw
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PicoPorch and ComputeCam - The Motor System

dougw

Intro

This update in the experimenting with extreme environments design challenge focusses on the motor mechanism which allows the camera in a Hammond enclosure to pan across the yard.

The Motor System Video

Update

The intended motor actually arrived, so I have added this update to show what it looks like. It works better than the backup and will definitely stay in the project.

It did require more 3D design and printing, but it was worth it.

Discussion

So far the project has already required at least eleven 3D printed parts, which are taking lots of time to design and print, but there are still several key structures to be designed.

The motor mechanism is now working well considering it is using a backup gearmotor, which causes it to rotate faster than I would like. I may try to slow it down with PWM once the motor controller PCB is assembled, but I'm not sure that will work any better than a series resistor.

Update The real motor arrived and has eliminated any need for further slow downs.

I have completed the Pico/display PCB and it is on order, but will not arrive for some time. The first PCB (motor controller) has arrived but is still missing a couple of FETs.

The Compute Module 4 camera cable has not arrived either, so getting it running has been delayed.

Overall, the project has some decent progress and some delays that are a bit concerning - basically a common state for these kinds of project to go through.

The next focus will be on building the power supply system.

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