I am actually in need of some help for one of my projects.
My problem is that i have to transmit a Microcontroller output to a very long distance say 100m and my data rate is as slow as 1 bit/min.I know that line drivers can be used but the ones avaialbe are designed for faster data rates and there are numerous ones available.Suggestions or solutions are needed.
Fast driver will work at a low rate. I think, any RS-422 or RS-458 drivers should serve your purpose, you can look for these drivers on Linear Technology and Maxim web sites to name a few.