|
|
VK5ZVS |
|
Projects 'n' Stuff |
|
|
Home | Back |
|
|
Roger Beep. |
The original idea came from Andrew, VK5ZUC, using a programmed PIC constructed
as a dongle and inserted into the rear microphone socket, with the hand-held microphone on the front socket of
the Icom 706 radio. It was a simple solution and allows for easy connection / disconnection. The pre-programmed
pic and a prototyping pcb kit for the Pic-Axe chip I used,was kindly supplied by Andrew and didn't take long to
wire up and try! I used this board and modified Andrew's circuit a little to get the similar on-air result.
This was so easy and so successful, I bought a PicAxe starter kit and started programming another with some
alternative code and that worked too!! PicAxes are really so easy to program and play with.
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Here's the program code for the -08M PicAxe chip.
start:
low 0
goto pttpos
pttpos:
if input3 is off then pttneg
goto pttpos
pttneg:
if input3 is on then beep
goto pttneg
beep:
high 0
pause 100
sound 2, (118,5)
low 0
pause 50
goto pttpos
|
|
|
|
|
|
Here's a view of the veroboard layout.
|
|
|
|
|
|
|
Here's a view of my dongle I use with the IC-7000.
|
|
|
|
|
|
|
|
|
|