is there a good board for wireless singel action controll? I want to make a basic on/off "switch" with a motor (prismatic). Any suggestions?
Where are the signals coming from? By wireless, do you mean IR (Infra Red), ultra sound or radio? If radio, WiFi, 2.4GHz (NRF24), 433MHz, XBee? Smoke signals? It is possible with any but the last. Choose one and we can help get it to do what you want.
i think Bluetooth or wifi would work just fine 
Which? They are not the same. Bluetooth is probably easier on the Arduino side, but the sender (you still have not answered that question) will need an app to sent Bluetooth data. For bluetooth, you need an Arduino board and a bluetooth transeiver. With WiFi you could use an ESP8266 running a simple server and control from a device running a web browser.
Where are the signals coming from?
We really need to know what is on the other end, sending on/off to Arduino "switch" (another Arduino, PC).
Bluetooth then. Does not need to be connected to the web (would be cool thought). It should work with a simple controller (simple on/off button) or a smartphone.
Thx for the reply btw
herbertw:
Bluetooth then. Does not need to be connected to the web (would be cool thought). It should work with a simple controller (simple on/off button) or a smartphone.Thx for the reply btw
Once you choose Bluetooth then connected to the web is not possible.
Bluetooth does not give you much distance.
haha i know. Don't need more than like 10 meters 
Martyn Currey has a nice tutorial about BLE BLE / Bluetooth 4 | Martyn Currey
If at all interested in the ESP8266 (WiFi option), here is the best guide that I have found so far.
thx
For a simple controller, a TV remote and an IR sensor might be easiest. There are libraries to read these signals. Load up a library, write some code to just echo what buttons get pushed, point your TV remote at your arduino and make a note of what numbers you get when you press the buttons. Then write code to turn things on and off when you get those numbers.