1x DS1669 (Dallas)
1x 78L05
2x 1N4007
1x 4MHz X-tal
2x 27pf
1x 22pF
1x 47uF/16V
1x 100n polycarbonate
3x 100n multilayer
1x 100 ohm
1x 10k ohm
1x 820 ohm
1x 100k trimpot
1x 10k lin. potmete
DS1669 Digital Control:
With this circuit you’re able to control a Dallas DS1669 digipot with a normal potmeter. Usually you control the DS1669’s wiper with 2 push buttons (up/down) Disadvantage: Slight delay.
The software….
Here you can download the datasheet of the DS1669.
Here the hex-dump (GNU). You can upload this hex data into the AVR with this programmer.
For more detail: DS1669 Digital Potmeter UP/DOWN using microcontroller
