---------------------------- ECG-PPG-sensor-wearable-device -----------------------------

• Intro: The idea is to design a Wearable Remote Patient Monitor. The wearable healthcare device can use the data (from the ECG-PPG sensor) to determine a patient's heart rate, blood-oxygen saturation (SpO2), and respiration rate.

  • ECG (electrocardiography) sensors measure the bio-potential generated by electrical signals that control the expansion and contraction of heart chambers.
  • PPG (photoplethysmography) sensors use light-based technology to sense the rate of blood flow as controlled by the heart's pumping action. In other words, ECG is a measurement of the electrical activity of the heart, using multiple electrodes. Whereas, PPG is an optical measurement of arterial volume, using photodiodes.

• The project is divided into two parts:

  • The sensor board, which includes:
    • MAX86178 ship (ECG and PPG sensor)
    • Microcontroller ()
    • PPG LEDs and photodiodes
    • Electrodes
    • LDO, oscillator, Connectors
    • other components...

• The MCU board, which includes:
  • The microcontroller
  • LDO, ESD, USB, and Oscillator
  • LEDs, buttons, connectors...

The software used is Altium

For confidentiality reasons, design files cannot be shared!