Unit Heart
Description
Unit Heart is a blood oxygen and heart rate sensor. It integrates MAX30100, providing a complete pulse oximeter and heart rate sensor system solution. This is a non-invasive blood oxygen and heart rate sensor, integrating two infrared LEDs and a photodetector. Its detection principle is to illuminate with infrared LEDs and detect the ratio of oxygenated to deoxygenated red blood cells to determine blood oxygen levels.
Testing method: After the program runs, place your finger on the detection area.
Heart Unit communicates with M5Core via the I2C protocol, I2C address: 0x57
Features
- Programmable sampling rate and LED current to save power
- Ultra-low shutdown current (0.7µA, typical)
- High measurement performance
- High sampling rate
- Built-in temperature sensor calibration
- Fast data output
- Blood oxygen concentration detection, heart rate detection
- Software development platform: Arduino
- 2 x LEGO compatible holes
Includes
- 1 x Unit Heart
- 1 x HY2.0-4P Grove connection cable (20cm)
Specifications
| Specification | Parameter |
|---|---|
| Communication Protocol | I2C:0x57 |
| Net Weight | 5g |
| Gross Weight | 18g |
| Product Dimensions | 32 x 24 x 8mm |
| Package Dimensions | 136 x 92 x 13mm |
Schematics
PinMap
Unit Heart
| HY2.0-4P | Black | Red | Yellow | White |
|---|---|---|---|---|
| PORT.A | GND | 5V | SDA | SCL |
Model Size
Datasheets
Softwares
Arduino
UiFlow1
Unit Heart UiFlow1 Docs |How to use Unit Heart in the UiFlow1 graphical programming platform and related API description|
UiFlow2
Unit Heart UiFlow2 Docs |How to use Unit Heart in the UiFlow2 graphical programming platform and related API description|
EasyLoader
| Easyloader | Download Link | Note |
|---|---|---|
| Unit Heart Test Easyloader | download | / |
Video
- Screen displays blood oxygen and heart rate sensor detection values.
FAQ
- Q: What is the accuracy and resolution of the Heart rate unit?
- A: Since it is not calibrated and officially verified, the data can only be used as a reference. However, if the numbers suddenly drop, you should pay special attention to whether there is any abnormality in your body. In actual tests, holding your breath for a period of time and then measuring will show lower blood oxygen levels. Measurements on the right finger will also be slightly lower, possibly related to the distance from the heart.
