I need help to customize the circuit on the foto (attachment). It is a circuit that remotely switch an wallsocket on/off by 433mhz signal.
The circuit works pushing sw1 ones to switch on, push sw2 ones to switch off.

I want a touch switch circuit. One touch switch.
First touch to switch on, touch again to switch off.

I hope someone here has a nice idee how to make that.
thx Johan

extra info;
it is powered by one 12volt battery
i measure 3,2volt by the switch.

I found a cheap touch switch circuit but that circuit gives an output high or low, so thats not what I'm looking for

 

Are you looking for a commercially available solution or a do-it-yourself circuit schematic? I have an idea how this could be done but it's not elegant. Maybe someone else knows a better way.

 

Are you looking for a commercially available solution or a do-it-yourself circuit schematic? I have an idea how this could be done but it's not elegant. Maybe someone else knows a better way.

I dont care , when it works it is great

 

That could be done probably easy with a small uc.
Im about sure the buttons are high to low and just change the code sent out.
But that datasheet for the big ic on there that is a encoder are hard to find.

 

Are you looking for a commercially available solution or a do-it-yourself circuit schematic? I have an idea how this could be done but it's not elegant. Maybe someone else knows a better way.

Hello Wayneh, can you post your idea. Also when it's not elegant.

 

The buttons you could replace and add a small pic to make the press the Ic Like I said is programed to send
code to the light or outlet to tell it what should happen.
There I hacked a remote

 

If you want touch control only (no wireless), LSI makes a line of touch controller chips.

http://www.lsicsi.com/#/products/Lighting-Controls

ak

 

Can you get any doc/paperwork on the unit?

 

Is one side of the switch connected to either battery positive or battery negative?

 

Forget the excisting circuit board.

I only need a circuit that can do this;

One momentary switch (touch sensor)
Press the switch for the first time led 1 will light for a moment (and goes out)
Press the switch another time led 2 will light for a moment.
Press the switch again and led 1 will light.. etc etc

A flip flop circuit but the led must momentary light and not light till the next input

 

Forget the excisting circuit board.

I only need a circuit that can do this;

One momentary switch (touch sensor)
Press the switch for the first time led 1 will light for a moment (and goes out)
Press the switch another time led 2 will light for a moment.
Press the switch again and led 1 will light.. etc etc

Below is the LTspice simulation of a FF circuit that (I think) does what you want.
The "moment" turn on time is about 140ms as determined by the RC time constant at the MOSFET gates.
The circuit includes debounce so it doesn't change state more than once for each button push.

 

Hannes666 ......I can not forget about that circuit board. I need to know why it takes two switches to turn a light on and off. That's the part I want to know.

 

Hannes666 ......I can not forget about that circuit board. I need to know why it takes two switches to turn a light on and off. That's the part I want to know.

That's is for me also the question.
It is from elro/smartwares his20m wallswitch. (Google "elro his20m")

It was much easier for me when it has only one switch for on and off.

The plastic housing is not intergratable with the rest of the wallsockets and switches so thats why I want to customize it. I take a blind plate with a touch sensor.

So the I can turn on off the lights. And the system also works on the central security unit. ( HIS20S )
So I can make it case there is fire or an intruder all the lights go on.

Below is the LTspice simulation of a FF circuit that (I think) does what you want.
The "moment" turn on time is about 140ms as determined by the RC time constant at the MOSFET gates.
The circuit includes debounce so it doesn't change state more than once for each button push.

View attachment 139024

Thanks Crutschow.
When I see the circuit I think it will do the trick.
I think that I have to replace the mosfet and led, with a mosfet to replace the switches on the excisting circuit board.

 

I think that I have to replace the mosfet and led, with a mosfet to replace the switches on the excisting circuit board.

You should do the test I asked for in post #9 so you can determine how to properly connect the MOSFETs into the circuit to replace the switches.

 

Hannes666 ......I can not forget about that circuit board. I need to know why it takes two switches to turn a light on and off. That's the part I want to know.

My TV has that. It's useful to have a different remote signal for On versus Off, instead of a simple toggle. Using a unique signal allows a remote to "know" exactly which state the device is in (assuming the device responded), and you can re-issue the signal several times to be sure without worrying about toggling.

So for instance if the TV monitor is already on when my wife uses her Harmony remote to set our home theater to "watch a DVD", the Harmony will issue a "Power On" command to the TV. If the TV is already on, it ignores that. Without the unique codes for ON and Off, the TV would turn off when it gets the Power On command and this would anger the wife.

 

Hello Wayneh, can you post your idea. Also when it's not elegant.

The circuit in #11 is probably better. My approach would have used a 556 dual timer and a 4017 counter. The first timer would be set up to debounce the manual switch input. The output from the debounced input would toggle the state of the counter output. That counter output would go to the second 555 in monostable mode to produce a pulse length of whatever you want. As in @crutschow's circuit, the final step is a MOSFET taking the place of your existing switches. To implement that step, you need to know how those switches work. They probably connect to either ground or V+ on one side of the switch.