KTNNKG 433MHz Wireless Switch for wall

1technophile · April 17, 2019, 7:09pm

Here is some infos about an OMG compatible switch the KTNNKG 433mhz

You can choose between different configurations 1, 2 or 3 buttons. This device is a simple switch that you can stick to a wall, it will send a 433mhz signal when you press a button, of course following the button pressed you will get different signals.

The package include the switch but no battery with it.

Affiliated link

Power consumption
When sending signal 40mA
Sleep current 0A, there is no sleep current for this switch, quite logical the press of the button power and trigger the 433mhz emitter.

Duration estimation
27A battery capacity is 20mAh
8 sending per day of 0.5s → 4* 40/3600 = 0,044mAh per day for sending
Sleep current per day ->0mAh per day for sleep
Total per day: 0,044mAh
20/0,088=454 days

Some pictures:
Power consumption when no action

Power consumption when action

Reception package

Disassembled

PetricaM · April 17, 2019, 7:42pm

Could add that the switches with 2 or 3 buttons have some interesting options by pressing multiple buttons at the same time:

for 2 button switches there are 3 different codes sent (left, right, both);
for 3 button switches there are 7 different codes (1, 2, 3, 1+2, 1+3, 2+3, 1+2+3)

2 button switches could be used as dimmer + switch (press left for brightness up; right for brightness down; both for toggle) without an additional unit or to control multiple lights (either left or right for the lights in the same room and both for lights in the whole house), etc.

For 3 button switches any code can be associated with a different function (individual light toggle, all lights off, sound toggle for TV/AMP, pause/resume media player, etc, etc… sky’s the limit )