Society of Robots - Robot Forum

Electronics => Electronics => Topic started by: karmax on June 16, 2008, 01:38:40 PM

Title: rf modules
Post by: karmax on June 16, 2008, 01:38:40 PM

i am tring to make wireless my robot through rf module i have used jz863 modules taken frm site www.jizhuo.net but a lot of noise comes in this. some times it shows arbitary values.wht should i do?????????????

pls help me out........

Title: Re: rf modules
Post by: benji on June 16, 2008, 02:50:51 PM

-operate at 1200 bits per second baud rate
-use many caps in the circuit
-use an antenna

Title: Re: rf modules
Post by: dunk on June 16, 2008, 03:27:47 PM

so what error rate are you getting?

you'll never get 100% success rate with uncorrected RF modules.
some sort of error correction will be needed.
try reading up on Cyclic Redundancy Checks.

dunk.

Title: Re: rf modules
Post by: Admin on June 18, 2008, 03:31:20 PM

http://www.societyofrobots.com/robot_faq.shtml#circuit_debug

Title: Re: rf modules
Post by: karmax on June 19, 2008, 12:25:32 PM

hi
       the modules that i have written that 9600 baudrate but i am using it on 4800 .does it create any problem.

Title: Re: rf modules
Post by: benji on June 19, 2008, 04:38:38 PM

if it says you should operate at 9600 then why operate at 4800 ?
sure try the 9600 bps