RF Help

musictech

I am using laipac 315mhz rf transmitter and recievers.· The transmitter is TLP434A and the reciever is RLP434A.· I am also using parallax 418mhz keychain.· The problem is that I can't seem to get any kind of distinguishable input from either the keychain or another stamp with the transmitter on it.· The reciever is variable and can recieve up to 433mhz (via a frequency adjust screw on the reciever).· I am using a serin command to try and read the data.·

serin 8, 4800, [noparse][[/noparse]x]
debug dec x, cr
debug hex x, cr
debug bin x, cr


I don't know the baud rate of the keychain, but I have the stamp with the transmitter sending data at 4800bps.·
Can anyone help me straighten out my code?

thanks

·

Chris Savage

Are you able to confirm that both devices are in fact transmitting/receiving on the same frequency?



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Chris Savage
Parallax Tech Support
csavage@parallax.com

musictech

Well I managed to get the 2 315mhz components to talk, I am trying now to use the keychain so that I can operate it with only one stamp. However, I don't know the output of the parallax 418mhz keychain