Can anyone recommend an FCC approved Bluetooth module that includes sample code for a HID keyboard over GATT? The goal is to bring down the per-unit cost of my PCB with as little dev time as possible (don't want to re-invent keyboard code from scratch). I'm currently using a Rigado BMD-340 (based on the Nordic nrf52840), which works great, but is relatively expensive. I'm hoping to find a module under $5 in volumes of 250.

 

Might be something here that will address your needs. Online
store can get you low quantity pricing.

https://www.cypress.com/products/ble-bluetooth


Regards, Dana.

 

Thank you very much, I will check that out. I also found that Rigado has a low cost module that might work for my use case; the BMD-330 that is about 30% less than the module I'm using now, and is under $5 if I can get volumes up over 1000.