DS1307 problem

[miniman]

I am just starting off with this project and am looking for the best option. What i have to do is, send a word across a 250 meter wireless link, receive it at the remote location, use a DS1307 to write the time to PIC16F877A using I2C, store to memory and send the information including the word and the time of the received information serially to a PC and display the result in Visual Basic 6.
Can anyone give me a head start, relative websites, general advice etc etc.
Thank you

[mister_e]

if you need some RF transmitters, LINX do some for cheap. They're also really nice and compact + really easy to use.

here's the link

http://www.linxtechnologies.com/inte...ction=products

the above are available at DIGIKEY.

also you have LAIPAC who made some good ones too... sure some are made by LINX...hum hum!!!

http://www.laipac.com/


Also one member here, Bruce (Reynolds Electronic), have some model in stock too.

http://www.rentron.com/PicBasic/RemoteControl.htm

he also provide some good example to work with those RF modules.

http://www.rentron.com/remote.htm

hope this help you.

regards

[miniman]

I have already chosen to use the ER400TRS transceiver as an acknowledgement has to be sent back to acknowledge that the data has been received.
Another query is about the use of manchester encoding and how to implement an algorithm for this in C.

[mister_e]

have a look to this article
http://www.quickbuilder.co.uk/qb/art...sing_RS232.pdf

regards