Inside a cheap 3-way remote control switch. (With schematic.)
The Yam remote control switches seem to be very common on eBay and are surprisingly cheap for what you get. The insides seem relatively acceptable give or take a bit of poor track clearance between mains connections.
The circuitry is pretty much text-book for the application with a small microcontroller doing the decoding and relay control while a discrete RF receiver module based on an LM358 converts the received signal to a level the processor can deal with.
Here's a general eBay search link for this type of unit, but note that most are intended for 220-240V use.
http://www.ebay.com/sch/i.html?_odkw=wireless+lamp+remote+control&_sop=15&LH_BIN=1&_osacat=0&_from=R40&_trksid=p2045573.m570.l1313.TR4.TRC2.A0.H0.Xwireless+lamp+remote+control+receiver.TRS0&_nkw=wireless+lamp+remote+control+receiver&_sacat=0
The circuitry looks like it could be hacked to power it from an external 12V DC supply quite easily as long as it is not an electrically noisy supply.
The unit is only really intended for low current loads like light fittings, but again is open to technical modification with things like external solid state relays. (Treat low voltage side as being live at full mains voltage.)
I'm not sure if there is different coding between units. So I've just ordered a couple more to find out.....
If you enjoy the videos on this channel you can help support it with a dollar for coffee, cookies and random electronic modules at https://www.patreon.com/bigclive
Видео Inside a cheap 3-way remote control switch. (With schematic.) канала bigclivedotcom
The circuitry is pretty much text-book for the application with a small microcontroller doing the decoding and relay control while a discrete RF receiver module based on an LM358 converts the received signal to a level the processor can deal with.
Here's a general eBay search link for this type of unit, but note that most are intended for 220-240V use.
http://www.ebay.com/sch/i.html?_odkw=wireless+lamp+remote+control&_sop=15&LH_BIN=1&_osacat=0&_from=R40&_trksid=p2045573.m570.l1313.TR4.TRC2.A0.H0.Xwireless+lamp+remote+control+receiver.TRS0&_nkw=wireless+lamp+remote+control+receiver&_sacat=0
The circuitry looks like it could be hacked to power it from an external 12V DC supply quite easily as long as it is not an electrically noisy supply.
The unit is only really intended for low current loads like light fittings, but again is open to technical modification with things like external solid state relays. (Treat low voltage side as being live at full mains voltage.)
I'm not sure if there is different coding between units. So I've just ordered a couple more to find out.....
If you enjoy the videos on this channel you can help support it with a dollar for coffee, cookies and random electronic modules at https://www.patreon.com/bigclive
Видео Inside a cheap 3-way remote control switch. (With schematic.) канала bigclivedotcom
Показать
Комментарии отсутствуют
Информация о видео
Другие видео канала
Обзор Устройства управления светом(Overview The light control)INTERRUPTOR DE LÂMPADAS ACIONADAS POR CONTROLE REMOTO4 Way ON OFF Digital RF Remote Control Wireless SwitchPink LED lamp failure resulting in electrolytic capacitor venting.Hướng dẫn đấu nối thiết bị điều khiển 1 đầu raأسهل طريقة لتركيب جهاز التحكم في المصابيحХороший беспроводной выключатель на базе устройств YAM - 802 (YAM - 028).Remote Control Switch - RF ControlledRemote Controlled Outlet DIY TagalogControle remoto 4 canais tuoxinInside the cheapest remote socket I could find.Uzaktan Kumanda İle Aydınlatma Kontrolü-Lighting Control with Remote Controlاسهل طريقة للتحكم في الاشياء عن بعد🤔او بستعمال الريموت ,remote control switch 220v.#sons fil.4 Way ON OFF Digital RF Remote Control Wireless SwitchHindi || How to install Wireless 4 Way ONOFF RF Remote ControlInside a cheap eBay LED power supply. (With arcing flaw.)كيفية تركيب جهاز تحكم في الانارة عن بعد الجزء ثاني مع الاخ طيب الكهربائي433MHZ one way Wireless Digital Remote Control Switch 220V smart home▶️MANDO A DISTANCIA PARA LUCES 👍 🚨OJO🚨 PELIGRO: ELECTRICIDAD☠️Wireless 1way 2ways 3ways ON/OFF 220V Lamp Light Digital Remote Control Switch Receiver Transmitter