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by dmswjt
Fri Sep 30, 2016 7:38 pm
Forum: Off topic discussion
Topic: Face Recognition to activate Solenoid or Relay HELP
Replies: 1
Views: 2995

Face Recognition to activate Solenoid or Relay HELP

Hi all, I apologise in advance if this in the wrong place, or this confuses you. I'm a relative newbie to any kind of electronics. I want to build a security system entrance to my work space using face recognition (OpenCV), I found a tutorial by Tony DiCola which is perfect for that desire. https://...
by dmswjt
Wed Sep 28, 2016 5:15 pm
Forum: General discussion
Topic: Solenoid Locking Project - HELP
Replies: 11
Views: 5549

Re: Solenoid Locking Project - HELP

My main question here is - will that relay fry or hurt my pi. The 'maximum up to' current is 25A, and the pi outputs much, much less than that. I heard some suggestions of a transistor, but I really haven't a clue how they work or which ones to buy and how to work them. what a coincidence, I recent...

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