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DS1669 Digital Potmeter UP/DOWN using microcontroller




Part list:
1x AT90S1200-12PI
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.

ds1669 pot

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

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