Anyone know where to buy a remote control xmitter and receiver system?
I need a hand held device with a single button on it that will momentarily close contacts or output a pulse on the receiver for use with a Propeller.
The goal is to press the button and the receiver outputs a voltage or closes contacts momentarily. It would easy to build this with an Xbee but in this case I need a keychain type button that looks nice. A garage door type opener(larger) may be adequate as well. Thanks for any suggestions.
The goal is to press the button and the receiver outputs a voltage or closes contacts momentarily. It would easy to build this with an Xbee but in this case I need a keychain type button that looks nice. A garage door type opener(larger) may be adequate as well. Thanks for any suggestions.
Comments
KeyFob
http://www.sparkfun.com/products/8602
Transceiver
http://www.sparkfun.com/products/705
With BS2 http://forums.parallax.com/showthread.php?133053-Nordic-nRF24L01-BS2-Code-example&highlight=sparkfun+nordic
With Propeller http://forums.parallax.com/showthread.php?132849-Propeller-Powered-Panic-Buttons&highlight=sparkfun+nordic
I have several of SparkFun's key fobs. There's a link in post #1 of my index to Nordic modules that cost less then $3 that can receive the fobs transmission. I plug the $3 muodules directly into a QuickStart's header and power the transceiver with I/O pins.
I think I have firmware to update the fob's firmware to use larger packets than the standard four bytes. (I say "I think" because after I got the fob to send larger packets, it died on me.)
Edit. Just saw Duanes info. I will read look at that thread more closely, is there a method to just read a serial input with one pin? Power is no problem.
It would still be less expensive to use a slave uC to comunicate with the Nordic module than using a XBee. The slave uC could be a second Prop or one of the inexpensive AVR chips.
Oh, and think of feature creep you could have!
As much as I like adding a second Prop to project, I'd bet there are other one-pin alternatives.
http://www.ebay.com/itm/4-CH-433M-RF-Wireless-Remote-Control-Controller-4-Relay-Transmitter-Receiver-T4-/140648575190?pt=LH_DefaultDomain_0&hash=item20bf4ef0d6
This is perfect. Basically this device will serve as a 32bit keyless access with the touch of a button. Thanks for the info everyone.
http://www.lightobject.com/RF-Controller-C8.aspx