Add CedarGrove CircuitPython_AD5293 Digital Potentiometer driver #145
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Hello :). Thanks for the add. Might would be good if you include it in the community libraries list. https://github.com/adafruit/CircuitPython_Community_Bundle/blob/main/circuitpython_community_library_list.md. Thanks |
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Oops. Skipped that step. Thanks for the reminder. |
jposada202020
approved these changes
Mar 19, 2023
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Thank you for the Add :), Library entry to the list is in #146. LGTM
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The AD5293 Digital Potentiometer is a 10-bit, SPI, 100K-ohm device. The potentiometer sports 1024 resistance steps. The digital logic power requires 2.7v to 5.5v. The potentiometer circuit operates with dual analog supply voltages from +/-9v to +/-16.5v. The pins act similarly to a passive resistive potentiometer, but require that voltages placed on any of the three pins not exceed the analog power supply voltages.
The CircuitPython driver supports a single SPI potentiometer device per instance. It will not work with daisy-chained devices.
The Cedar Grove AD5293 custom breakout board provides power and signal connections for SPI and the potentiometer chip. The AD5293 is also used in the AD9833-based Cedar Grove Precision VCO Eurorack module. The custom breakout board is available in the OSH Park public project collection.