> if you want 32 bands, etc. Or, you can make a project of it and have it send > it in Morse at 60 wpm.
Hi Mike, The XTALL or any of the Lite+XTALL V8.x radios the PIC limits us to 4 general purpose I/O (excluding the I2C). Most of the stuff I am playing with interfaces the 4 bits to: 2 for optical encoder, 1 for switch on optical encoder(push), and 1 for a sonalert morse output. I usually take the DIP SW off and replace with 8 pin header. One of the gnd pins, I swap out to pwr for powering the optical encoder or for in circuit programming. With this and some code I can dial in 60+ preset frequencies, fine tune exact freq using rotary by pushing switch, and morse sonalert for anouncing the frequency in morse code. Test code was posted in the files section many weeks back if others wanted to play. Limitations are really the IO and max code size. With the header instead of the DIP SW I can also do in-circuit programming of the PIC device too. I really can't stand pulling out PICs and programming them with all the mistakes I make!! Details are also available in the files section if others want to add this (requires pwr out on one of the header pins and a diode isolating the PIC pwr). The cheap programmer that most buy from Sparkfun also has the in-circuit cable to interface to. If more flexibility is needed a couple of the bits (or the I2c) can just be sent to a more powerful PIC with more I/O expansion if needed. Tony sure has kept it simple, yet very flexible in these new designs. 73, Mike Collins KF4BQ
