nice!nano alternative for split wireless keyboard

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testokaiser
 
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nice!nano alternative for split wireless keyboard

Post by testokaiser »

Is there any Adafruit product that I can use instead of a nice!nano for a split wireless keyboard build.
Been googling this for a while now and can't find any definitive answer.
The nice!nano can be used without a TRRS cable for communication between the two halves. So there are absolutely no wires involved.

So far the information that I found indicates that this cannot be achieved with for example the Adafruit Feather 32u4 Bluefruit LE.
Can anyone confirm this?

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adafruit_support_mike
 
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Re: nice!nano alternative for split wireless keyboard

Post by adafruit_support_mike »

The 32u4 can't implement the same solution:
Do you still need a TRRS jack?

No, there's a connection via BLE between the two boards. The central half reports back the keystrokes of both the central (usually left) and peripheral (usually right) sides.
You need a board that can work as a BLE central device, and the '32u4 doesn't have enough RAM to run that code.

The board you mentioned uses an nRF52840, which can act as a BLE central. This code shows how to use it as a dual-mode device that acts as a central for a second peripheral, but registers as a peripheral (like a HID keyboard) to talk to a phone or a computer:

https://github.com/adafruit/Adafruit_nR ... leuart.ino

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