One of the best things about these switches is that they use a very standard encoder chip, which means they'll work with most common eBay receivers. The EV1527 chips have a 20 bit random code (1,048,576 permutations) plus the 4 channels, so the risk of a matching code on another random remote is unlikely with well written software that tests all 24 bits.
I've included the RF section for the radio hams. I'm not an expert in this area, but it strongly resembles the classic Colpitts oscillator used in many DIY FM micro transmitters.
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I've included the RF section for the radio hams. I'm not an expert in this area, but it strongly resembles the classic Colpitts oscillator used in many DIY FM micro transmitters.
If you enjoy these videos you can help support the channel with a dollar for coffee, cookies and random gadgets for disassembly at:-
http://www.bigclive.com/coffee.htm
This also keeps the channel independent of YouTube's advertising algorithms allowing it to be a bit more dangerous and naughty.
A curious thought just came to me? How many RF devices within range or a set range would be enabled/disabled or triggered with one pulse or wave in a desired frequency. Would there be a threshold of energy or since the wave would be passive and not completely absorbed that it could trigger more than one device in the same location. Perhaps an echo chamber could have a multiplied effect?
oh great. a neighbour can now unlock their car and turn my lights on. lol
Awesome Video big clive
my ham radio would cause them to fail i think but i would love to try it lol
Yin/Yang
Too bad you couldn't measure the capacitor values. I've been trying to make such an rf circuit myself for a while for small projects, but so far I have had little success with it. So wanted to try your schematic. Unfortunately, I can't find any further information about this or I'm just not looking for it right.
Thank again Clive, great video as usual.
Off topic a bit can 1 button control 2 relay units?
They should have sponsored you for this lol one of the better reviews 🙂
Many thanks for the video. I have now received 2 switches and for anyone interested in home automation I can confirm that a Sonoff RF Bridge (flashed with tasmota) can receive the separate switch codes that can then be controlled by MQTT, node-red and of course Home Assistant. Very useful!
Hey Clive, can you please tell me what is OTP Encoder?? What is the EV 1527 used for? Please explain in the simplest words possible… Thanks And GREAT VIDEO!!
If you cant get an A27 battery 8mm x 28mm? an A23 battery 10mm x 28mm often fits
Also an A23 is around 55mAh, and a A27 is only 20mAh, both 12v