RF data communication & Decoder/Encoder - Electronic Circuits Projects Diagrams Free

rakan · 22nd September 2007, 08:34 PM

Hello,

I am working on my graduation project which will be using RF transmitter and receiver to move data between circuits.

What i want to do is use the transmitter to send the robot directions like Up,Down,Left,Right each on differant channel or in the same channel but as a binary number, eg: 1010 or 1001
as MSB is the Up and LSB is Right.

My question is when i want to send a group of bits during 20ms using the transmitter/receiver pair, How do i code the microcontroller to save the bits i receive within a certain amount of time in an array so that i can later decode them using code and detect the output pins that should be set to high and the ones set to low?

ex: if i send 1001 i will want to receiving end to move the robot forward and right. How can i receive the 1001 bits and interpret them to know the exact pins that should get the output. I know it is more of a job for the Encoder/Decoder but i also know that it can be done using Microcontroller.

Please guide me to the corret way of doing this.

Regards,
Rakan

bananasiong · 24th September 2007, 04:40 AM

http://winpicprog.co.uk/pic_tutorial12.htm

simrantogether · 24th September 2007, 06:49 AM

you dont need to do those things.. encoding and decoding...

there are already chips available to do this..

all you have is to simply interface.. which is very easy..

[b]Follow the link given by ' Banana Siong ' in the above post...[\b]

it is a very good tutorial...

Regards,

Simran..

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22nd September 2007, 08:34 PM	(permalink)
rakan	RF data communication & Decoder/Encoder Hello, I am working on my graduation project which will be using RF transmitter and receiver to move data between circuits. What i want to do is use the transmitter to send the robot directions like Up,Down,Left,Right each on differant channel or in the same channel but as a binary number, eg: 1010 or 1001 as MSB is the Up and LSB is Right. My question is when i want to send a group of bits during 20ms using the transmitter/receiver pair, How do i code the microcontroller to save the bits i receive within a certain amount of time in an array so that i can later decode them using code and detect the output pins that should be set to high and the ones set to low? ex: if i send 1001 i will want to receiving end to move the robot forward and right. How can i receive the 1001 bits and interpret them to know the exact pins that should get the output. I know it is more of a job for the Encoder/Decoder but i also know that it can be done using Microcontroller. Please guide me to the corret way of doing this. Regards, Rakan

24th September 2007, 04:40 AM	(permalink)
bananasiong	http://winpicprog.co.uk/pic_tutorial12.htm __________________ Superman returns..

24th September 2007, 06:49 AM	(permalink)
simrantogether	Hi Rakan... you dont need to do those things.. encoding and decoding... there are already chips available to do this.. all you have is to simply interface.. which is very easy.. [b]Follow the link given by ' Banana Siong ' in the above post...[\b] it is a very good tutorial... Regards, Simran.. __________________ Simran.. 8051 Specialist.. Last edited by simrantogether; 24th September 2007 at 06:55 AM.