Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
I am using the 315MHz version (of one that looks like this) to open/close my drive-through swing-gate. The range is consistently > 300ft from inside a car...
ps, many remote dog training devices use the ISM band, too...
Wireless Doorbell, ebay, under $5.00 for a kit of one transmitter and one receiver. Lots to chose from, battery powered transmitter, battery or power line receiver, multiple transmitters, etc.
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