NFC reader and two stepper motor drivers are integrated into this small board. The board allows identification of the spray head through small 25 mm NFC Type 2 tag and serves as mechanism for master device to distribute spray content per predefined algorithm.
Requirements:
- NFC Type 2 Tag reader
- Stepper motor controller
- UART communication,
Major components:
- STM32F401
- DRV8821
- CR95HF
- AZ1117
Number of PCB layers: 4
BOM price: 32 USD
Realization time: 6 weeks
