| Roger Beep. | ||
| The proto board used for testing. |
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| 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. | ||
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| The Roger Beep schematic |
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| The program - courtesy of Andrew, VK5ZUC. |
| 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 |
| Final version |
| Here's a view of the veroboard layout. |
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| Here's a view of my dongle I use with the IC-7000. |
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