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This is a nicely packaged key FOB that contains a Nordic nRF24L01+ radio and a ATtiny24 for control. Press any one of 5 buttons and the ATtiny24 will wake up, transmit the buttons being pressed, a 16-bit integer value of the total button presses since last battery replacement, and then return to low-power sleep.
Initialized 0 val 00111011 1 val 00000000 2 val 00000011 3 val 00000011 4 val 00000000 5 val 00000010 6 val 00000110 rxAddr P0: E7 E7 E7 E7 E7 txAddr: E7 E7 E7 E7 E7 Status: 01000000 1E 01 8A 00 00 Status: 01000000 17 01 8B 00 00 Status: 01000000 1D 01 8C 00 00 Status: 01000000 1B 01 8D 00 00 Status: 01000000 0F 01 8E 00 00
Comments
It transmits the same codes ($1E,$17,$1D,$1B,$0F) and sequential number as the key FOB does.
EDIT: program modified to restore mode back to PRX (receive mode) after data is transmitted
youtube.com/user/MicroZapMan
This is great. I think these Nordic devices are very useful. I like how small they are.
I want to point out that the code I wrote for the Propeller had its beginnings as C code written by Leon Heller.
After seeing how Leon configured the registers, I was able to do the same using the Propeller.
Duane
Index of my projects and interesting forum posts
http://www.ebay.com/itm/2-NRF24L01-2-4GHz-Antenna-Wireless-Transceiver-Module-For-Arduino-Microcontrolle-/321147035885?pt=LH_DefaultDomain_0&hash=item4ac5dae0ed
G1HSM
I usually get my modules from this seller. (I usually have a link to these modules in post #1 of my index. A link to my index in my signature.)
You can purchase a awful lot of these modules for the price of an XBee. (XBees are easier to use though.)
Index of my projects and interesting forum posts
I too using this same..