I am getting my feet wet in attempts to make my own keypad. What would be the best controller for a few NeoKey 1x4 and Adafruit rotary econders? I was thinking of getting the Feather RP2040 for the usb-c.
Thanks!
-Jono
QT 12C question
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- T_Mo
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Re: QT 12C question
Assuming the rotary encoder is the type with the Stemma connector, the RP2040 Feather ought to work fine. I've daisy-chained quite a few I2C devices in series without trouble on an RP2040, and it has quite a bit of processing power and memory.
You will need to adjust the I2C address on the keypads so they're all unique addresses. I have not studied that part specifically, but they're generally configurable to several different addresses via soldering some pads.
You will need to adjust the I2C address on the keypads so they're all unique addresses. I have not studied that part specifically, but they're generally configurable to several different addresses via soldering some pads.
Please be positive and constructive with your questions and comments.