Vectis.ai example
BLE Heart Rate Monitor
Wearable HR + SpO2 with BLE 5.0, coin cell
About this design
A wearable Bluetooth Low Energy heart rate monitor designed around an nRF52 series SoC with an optical PPG sensor. The board fits in a 35×25mm form factor and runs for roughly a year on a CR2032 coin cell. Vectis generates the schematic, bill of materials, PCB layout, and CE compliance evidence directly from the natural-language specification.
Typical applications
Typical applications include fitness wearables, clinical heart-rate patches, sports performance trackers, and remote patient monitoring devices that need to ship a CE-marked product without spending six months on EMC iteration.
Compliance scope
CE marking covers EN 300 328 (BLE 2.4 GHz radio), EN 62479 (SAR low-power exemption), EN 55032/35 (emissions and immunity for ITE), and EN IEC 61000-3-2/3 (harmonics and flicker). Vectis pre-validates each domain before any prototype is built.
Design at a glance
- Bill-of-materials cost: €16.05
- Active power consumption: 26.0 mW
- Components selected: 11
- BOM lines: 11
Bill of materials (preview)
| Ref | Part | Manufacturer | Description |
|---|---|---|---|
| mcu-bgm220pc22hna | BGM220PC22HNA | Silicon Labs | BGM220P BLE 5.3 Module |
| sensor-shtc3 | SHTC3-TR-10KS | Sensirion | SHTC3 Temp/Humidity Sensor |
| sensor-mlx90614esf | MLX90614ESF-BAA | Melexis | MLX90614 IR Temperature Sensor |
| pwr-buck-ap3012 | AP3012KTR-G1 | Diodes Inc | AP3012 |
| blm18_rf_ferrite | N/A | Murata | ferrite bead BLM18 600Ω@100MHz RF filter |
| cap_100nf_mlcc_00 | N/A | Murata | 100nF MLCC X7R decoupling cap 0402 |
| cap_100nf_mlcc_01 | N/A | Murata | 100nF MLCC X7R decoupling cap 0402 |
| cap_100nf_mlcc_02 | N/A | Murata | 100nF MLCC X7R decoupling cap 0402 |
| cap_10uf_bulk | N/A | TDK | 10µF X5R bulk decoupling cap 0805 |
| tvs_esd5z5_diode | N/A | ON Semiconductor | ESD5Z5.0T1G TVS ESD protection diode |
| esd-rf-tvs | ESD7L5.0DT5G | ON Semiconductor | ESD7L5.0DT5G RF Low-Cap TVS |
Make it your own
Adjust the spec, swap components, re-run compliance. Your design, fully editable.