Architecture Diagram

Data Flow

1. The sensor MAX30102, collects Pulse and Oxigen data from the patient, and sends it to ESP32 through I2C protocol (PIN SCL-32, SDA-33).
2. The ESP32 presents the reading on the OLED Display.
3. Then the ESP32 sends the data through MQTT (port 1883)
4. The MQTT Streams Gateway (SGW) listens the new record and process it to publish the data in the IOTA Tangle, sending the data through HTTPS (port 443).
5. At the same time, a Telegram BoT is reading the MQTT Database and checking the Oxygen and Pulse Levels. If the Oxygen and Pulse is outside the normal parameters, the Telegram Bot, sends an Alert.
6. A Third Party Agent (i.e. an Insurance Company), is connectect to the tangle and reading the data stream associated with the Channel ID created by the SGW, and writing the records in their own Database.