Hi! This is my first post and I come in need of guidance...

Goal

I need to make it possible to toggle channels on a serial UHF radio and display the current channel number on a 7 segment LED or a LCD display, the radio can change channels in 2 ways.

1. It can take a binary code to change from channels 1 - 4 with 00 01 10 11.

2. It can take serial RS232 data into one of the serial ports at 9600 baud. The ASCII command to change channels would be +TSCxx where xx is from 00 - 99

Method #1 is simple and good for the time, but if programming a micro to do #2 is not that hard then I would rather do that. I have very limited experience programming a micro but willing to learn it.

Any suggestion will be well taken.

Danke!

 

So in order so solve #1, I could use a 2-bit counter to do the job... How do I make one that I can control with a push button?