but it uses only LIVE + LOAD1 cables like in the wall lamp switch
(2 wires wall switch, load and live)
If you short LIVE and LOAD the lamp turns on
LIVE 220V——[SWITCH]—–LAMP—-GROUND
This RF switch replace the mechanical switch and toggles by touch the lamp with relay, and can do it by rf 433mhz.
But how does it get power and keep the lamp off, if it disconnect the LOAD cable it will shut it's own power off.
I believe it keep some kind of always connected LIVE+LOAD with low resistance when "OFF" so the IC will keep geting his power, but the lamp will say off because the current is too low or something like that.
Can anyone shade some light on this? 🙂
Does anyone has any schematics that will allow me to replicate this device to operate a 5v micro-controller with relay on 220v live line & load.
I have a 220v to 5v power supply.. IC and relay lke that:
LIVE 220V + ——– [ 220V-5V + IC + relay ]——–LAMP —–GROUND
Try to keep the micro-controller on 247, and the relay to toggle the lamp,
how can it be done?
what part do i need?
anyone done that before?
thanks allot…
EDIT: adding my draw 🙂
so what do i need to put instead of the "?" compnent?
is it a current limiter? does anyone can give me a schematics of current limiter that will lower the amps to low as 50mA-150mA but keep it 220v?
technically i need a "constant" lamp dimmer on his lowest setting but not off, right?
thanks
Best Answer
-Switched off: It draws current through the bulb. The current it draws is not enough to visibly light up the bulb. Certain type of LED bulbs may cause trouble with this switch though, as they prevent the switch from drawing enough current.
-Switched on: In creates a voltage drop of a few volts to keep the electronics active. The drop in brightness is not noticeable to the average human.
Regular phase-cut dimmers work in the same way.