Repurposing Motor Shield

Discussion related to "under the hood" OpenMV topics.
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CameraMan
Posts: 21
Joined: Thu Apr 09, 2020 3:41 pm

Repurposing Motor Shield

Postby CameraMan » Sat Apr 11, 2020 11:50 am

Question:

Can I use the Motor Shield as an LED driver?

Logic behind the idea:

Currently I'm using an external led driver (well actually just a bench power supply :lol: ) with a mosfet to act as a strobe. This is great for testing but good luck strapping a bench power supply to a commercial product. While doing my daily browsing of the OpenMV website for possible ideas, I stumbled across the the Motor Shield. Looking at the data sheet:
  • Output Voltage 15v O1,O2 pins
  • Output current 3.2A 10 ms Single pulse
  • Switching frequency 100kHz
Being that my LED is 12v 1A, this seems to falls directly in line with my power requirements.

Am I missing anything here?
-Chief Tinkering Officer
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kwagyeman
Posts: 4271
Joined: Sun May 24, 2015 2:10 pm

Re: Repurposing Motor Shield

Postby kwagyeman » Sat Apr 11, 2020 12:02 pm

Yep, you can.
Nyamekye,
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CameraMan
Posts: 21
Joined: Thu Apr 09, 2020 3:41 pm

Re: Repurposing Motor Shield

Postby CameraMan » Sat Apr 11, 2020 12:04 pm

Perfect, and props for the super fast response time. You guys are great!
-Chief Tinkering Officer

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