Wireless modules - help with code not working

[tasmod]

At last. Working.

Redesigned pcb's but not reconfigured. Just turned pic sideways for ease of removal and added pads for each pin to facilitate cross connection, although not finally needed.

After making up the boards I wrote the most simple TX/RX routines and connected the 3 pins needed with temporary jumpers. They immediately talked to each other. Replacing the jumpers with the modules and they talked !!!!

There was one change in code that needed to be added but later removal and they still talked although not quite 100%. That was the extra first characters "SSSSSSSSBOB" before the required string to match the serin string of "BOB"


Send code -------------

Include "modedefs.bas" 
DEFINE OSC 10


TRISA = %00000000

CMCON=7

pause 2000

TEST:
    serout PortA.3, T9600,["SSSSSSSBOB"] 
    PAUSE 500
    GOTO TEST  
END

Receive code -----------------------------

Include "modedefs.bas" 
DEFINE OSC 10

TRISA = %11111101       

CMCON=7

relay var PortA.1


low relay

pause 2000

TEST:
    low relay
    pause 100
    serin PortA.2,T9600,["BOB"] 
    high relay
    PAUSE 1000
    GOTO TEST
        
END

Now I need to expand the code to do just what I want and to then add a decent antenna to get the range.

I'm considering a 'Moxon' Rectangle which gives 3dbd gain with excellent f/b ratio fitted directly to modules via short solid wire. It can be made up using UK twin earth cable wire. About 1.5mm copper. It's very small indeed at 123x46mm

Rob