Wireless modules and simple setup, what is required?

[flotulopex]

Hi Tasmod,

I'm finishing a similar project to yours with LINX RF modules.

I choose the 433MHz version to ensure better distance; I tested with a "Splatch" (from LINX too) antenna and reached easely 70 meters. I paid $13.- for the receiver (RXM-433-LR) and $8.- for the transmitter (TXM-433-LR) module.

These RF modules are super-simple to use and it took me less than an hour from unpacking them to have sent the first data

I made this short (simplified testing) code fot the Transmitter:

' Fuses  PIC12F675 - 4MHz XTal
@ __CONFIG _CPD_OFF &_BODEN_OFF &_MCLRE_OFF &_PWRTE_OFF &_WDT_OFF &_XT_OSC

' Registers   76543210
OPTION_REG = %10000000 'GPIO Pull-Ups disabled
INTCON     = %00000000 'Set Interrupts
ANSEL      = %00000000 'Select analog inputs
WPU        = %00000000 'Weak pull-ups (check OPTION_REG)
GPIO       = %00000001 'Set PORTS
TRISIO     = %00000010 'Set I/Os
CMCON      = %00000111 'Comparator Module settings

' Program
MAIN:
    SEROUT2 GPIO.0, 813,["TEST",1] '1200bps
    PAUSE 00
    GOTO MAIN
END

...and the Receiver's code:

' Fuses  PIC12F675 - 4MHz XTal
@ __CONFIG _CPD_OFF &_BODEN_OFF &_MCLRE_OFF &_PWRTE_OFF &_WDT_OFF &_XT_OSC

' Registers   76543210
OPTION_REG = %10000000 'GPIO Pull-Ups disabled
INTCON     = %00000000 'Set Interrupts
ANSEL      = %00000000 'Select analog inputs
WPU        = %00000000 'Weak pull-ups (check OPTION_REG)
GPIO       = %00000100 'Set PORTS
TRISIO     = %00000000 'Set I/Os
CMCON      = %00000111 'Comparator Module settings

' Variables
Led   VAR BYTE
Led   = 0

' Program
MAIN:
    SERIN2 GPIO.2, 813,[WAIT("TEST"), DEC1 Led] '1200bps
    GPIO.1 = Led
    PAUSE 500
    GOTO MAIN
END