A few weeks ago I bought a wireless light switch set with a RF remote.
My idea was to control the remote by the Arduino, I tried a few things, but nothing is really working the way I want it to.
So I went searching on the web about the Arduino interfacing with other hardware.
My search stopped when I found that I could interface with other circuits through a Opto-Isolator.
Now I can't get any further with my project since I don't know witch Opto-Isolator I need to use.
The RF Remote runs on a 12V 23A battery.
I'm very interested in what kind of Opto-Isolators most people use for their Arduino projects.
And maybe somebody knows what kind of Opto-Isolator I can use best to control my RF remote.
A 23Amp battery, you don't say, or rather you don't mean.
Without knowing what you want to interface to exactly it is imposable to say exactly what opto isolator you need. Are you trying to press a key on your remote or go into the lamp controller?
Optoisolators are much of a muchness - lots of types, all fairly similar. But if the RF transmitter is battery powered, are you sure you even need an optoisolator? Would a small relay be better? To advise any further we'll need more info. Can you sketch out what you want to do?
BTW, Mike, 12V "A23" batteries are sometimes labelled "23A":
Thanks for the reactions.
I wan't to interface with my RF Remote so that I can switch my lights on and off with the Arduino.
So I would like to be able to control the small switches on the RF Remote with the 5Volt coming from the Arduino.
The button on the RF Remote only needs to be pressed for around 2 seconds to make a good connection.
My set looks like this:
Pushing buttons on a remote is possibel but sometimes it can be tricky as the simplest way does not always work.
First of all measure what your button does electrically it could be that it connects one end to the remote's battery -ve or battery +ve. If so this is the easiest type to fake. Get a transistor connect the base to the arduino through a 4K7 resistor, put the emitter to ground and the collector to one end of the button. Also connect the battery -ve to the arduino ground.
Then you switch it from the arduino.
If that fails then replace the transistor with a small signal FET.
If that fails connect both sides of the button to one of the analogue switches in a 4066.
