Sensor Array
AssemblyInward-facing optical and thermal sensors that read pulse, blood oxygen, and skin temperature from the finger's palmar arteries. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.
Bill of materials for Sensor Array
6 top-level lines as of r158332| # | Item / sub-assembly | Part no. | Qty/assy | Ext. qty | Parts | Type |
|---|---|---|---|---|---|---|
| 1 | Green PPG LED | smart-ring-ppg-led-green | 2× | 2 | · | part |
| 2 | Red / Infrared LED | smart-ring-ppg-led-ir | 2× | 2 | · | part |
| 3 | PPG Photodiode | smart-ring-photodiode | 2× | 2 | · | part |
| 4 | Optical Analog Front End | smart-ring-afe | 1× | 1 | · | part |
| 5 | Skin Temperature Sensor | smart-ring-temp-sensor | 1× | 1 | · | part |
| 6 | Accelerometer IMU | smart-ring-imu | 1× | 1 | · | part |