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Remote controlled Pager/vibrating device-compact and light Answered

I am new to Instructables and was hoping for some help. I have been reading through many posts and projects to find what I need, but still need help. I am trying to build a vibrating remote controlled collar to signal to my deaf dog. I would like something very compact that has a small vibrating motor in it that also works at a small distance, not more than 50 yards or so. I only need one setting, two would be great if possible. I just want a small transmitter, (size of a garage door opener) with a single or two buttons to produce a small vibration, and maybe a more intense vibration, to get the dogs attention when he is not looking at me. From there, he is trained to visual hand signals. Any help on how to build this, and build it as LEAST bulky as possible? I have seen a few instructables I am trying to piece together, but I am not an electronics person, have done a few projects like building an egg incubator...So far I know I need a transmitter and a receiver, a power source, which I was hoping could be smaller than a 9volt battery, and a small vibrating motor, possibly the minidisc or bullet type that runs off 3V? Not sure if that would even be strong enough, but my dog is pretty sensitive. I am not opposed to spending a little money, as the dog collars on the market are either cheap garbage for around $20 or good quality but have way more unnecessary features than I need and cost a whopping $200. Thank you very much!

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randofo

4 weeks ago

Check out this transmitter / receiver pair:
https://www.adafruit.com/product/1392
https://www.adafruit.com/product/1096

You could probably connect a phone vibrating motor directly to the receiver, perhaps with the addition of a flyback diode:
https://electronics.stackexchange.com/questions/303240/use-of-flyback-diodes

If you use a bigger motor, you will possibly need a transistor to switch the motor on and off. Essentially, this circuit:
https://www.petervis.com/GCSE_Design_and_Technology_Electronic_Products/Transistor_as_a_Switch/Transistor_as_a_Switch_for_Motor.html