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Friday, 17 November 2006 |
Fix memory keyer with PIC16F628A
The entire project started as the complex example during study of PIC programming. The CW keyboards are often taken by radio amateurs as the easier but anyway usefull solution for one PIC project.
The project characteristics
| microprocessor used
| PIC16F628A (can be used PIC16F628 or PIC16F627 as well) | | used power supply | external 12-13,8 V | | keyboard | 4 x 4 keys | | CW speed adjustment | 10 - 30 WPM (can be changed) | | CW tone adjustment | none (fixed 700 Hz tone for phone output) | | indicators | PTT line ON / CW signal ON
| | automatic repeat | on key #1 | | CW content | fixed programmed (can be re-programmed) |
| Electrical schema of the CW keyer is available here. Assembler code of the solution is located for download here. |
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Last Updated ( Thursday, 23 November 2006 )
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