Industrial Pulse
Industrial IoT condition monitoring
From sensor to screen: equipment telemetry over MQTT, stored in PostgreSQL and monitored live on a bilingual dashboard.
Wearable sensing
ESP32 Wearable Sensor Monitor
Heart rate, SpO2 and body temperature measured on an ESP32 and streamed live over Wi-Fi.
Overview
A wearable sensing unit built on the ESP32. It reads heart rate and SpO2 from a MAX30102, contactless temperature from an MLX90614 and contact temperature from a MAX30205 on one I2C bus, and streams the readings to a Blynk dashboard over Wi-Fi.
The challenge
Several I2C sensors with different read patterns have to run on one microcontroller alongside the pulse-oximetry algorithm, with a stable cloud link and no credentials in the code.
Our approach
Key capabilities
- MAX30102 heart-rate and SpO2 algorithm
- Contactless (MLX90614) and contact (MAX30205) temperature
- Shared I2C bus with per-sensor presence checks
- Live streaming to a Blynk dashboard
- Credentials kept out of the source code
Inside the project
Outcomes
- Three biometric sensors integrated on a single board
- Real-time vitals visible remotely on a phone dashboard
Technology
Try it
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