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How can I add wireless functionality to a simple electric motor? (lemmy.ca)

submitted 3 months ago* (last edited 3 months ago) by john89@lemmy.ca to c/askelectronics@discuss.tchncs.de

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I have one of those basic motor kits you can buy off of Amazon. I was wondering what steps I should take to make it so that I can turn the motor on/off with the press of a button, wirelessly.

I'm still very new, so any information you can offer no matter how basic will probably be useful to me.

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[–] pryre@lemmy.world 3 points 3 months ago

Broadly speaking, you probably want some kind of relay either mechanically switched or electronically (e.g. with MOSFETs). Most people would prefer an electronic one as they won't make a "clack" noise when turning on or off. Electronic may or may not be more expensive, it depends on the rating.

The key factor will be getting one that is rated to the voltage and current draw of the motor. If the motor is AC powered (e.g. 240V) and is rated at 1200W, then you will need a relay rated to 10A. Same thing goes for DC, just smaller numbers.

You should be able to find some kind of wireless relay on Amazon as well. There are plenty of WiFi ones I'm sure if you want to use an app. There's probably also an assortment of radio ones if you want to use a fob key. The easiest would be to look for something that is a kind o "inline adaptor" so that you plug it between the power and the motor, and it powers itself.