Simple but neat, BLE enabled ISO and ANSI keyboards.
Requirements:
- BLE interface,
- USB HID Class,
- Low power profile.
Major components:
- nRF52832
- STM32F103
- BQ24074
- TPS79633
Number of PCB layers: 4
BOM price: 54 USD
Realization time: 6 weeks
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BLE Enabled Keyboard