Project Hub /Healthcare Biomedical & Assistive/Pulse Oximeter & Vital Scanner/Wearable Health Monitoring Tag With Telegram Bot

Intermediate

INDUSBOARD

Project Specific

3 – 6 Hours

Partial Kit

Wearable Health Monitoring Tag With Telegram Bot

A wearable health monitoring tag built with a coin-sized microcontroller and a pulse oximeter sensor that communicates vital signs through a Telegram chatbot.

Originally published on ElectronicsForU

View original tutorial

Parts You'll Need

This project is sourced from another site, not written by us — this list is our best match of their components against what we stock, not a verified bill of materials. Always check the original blog (linked above) for the actual parts list before buying.

3–6V R140 DC Motor (High-Speed DIY & Toy Motor) Rs. 49.00
10pcs 5mm RED Diffused Light Emitting Diodes - LEDs Set Rs. 39.00
Piezo Buzzer (Big) 6-12V Rs. 45.00
400 Points Mini Solderless Prototype PCB Breadboard High Quality Rs. 89.00
MB102 Adjustable Breadboard Power Supply Module (3.3V & 5V) for Arduino & Raspberry Pi Rs. 139.00
Jumper Wire 10 Pin Male To Male 20cm Rs. 45.00
Jumper Wire 10 Pin Male To Female 20cm Rs. 45.00

Selected: Rs. 0.00

We don't carry yet: Battery (generic / unspecified)
Other Dev Board (Indusboard / Maixduino / misc)
Pulse / Heart Rate Sensor

Browse all components

How It Works

The Wearable Health Monitoring Tag functions as a compact, IoT-enabled biometric tracking device powered by an IndusBoard Coin microcontroller. At the heart of the hardware is the MAX30100 pulse oximeter sensor, which utilizes optical methods via red and infrared LEDs to non-invasively measure blood oxygen saturation (SpO2) and heart rate from the user's fingertip or skin interface. The IndusBoard Coin periodically polls this sensor using standard communication protocols to read photoplethysmogram data. Because the microcontroller features built-in wireless connectivity, it connects to a local wireless network to interface directly with the Telegram Bot API using the AsyncTelegram2 library. When the system collects vital sign readings, the microcontroller processes the data locally and can autonomously dispatch real-time status messages, alerts, or health updates straight to a designated smartphone chatbot. Power is supplied by a compact 3.3V battery, making the entire assembly fully portable for wearable applications. Additionally, developers can integrate optional local feedback peripherals—such as a vibration motor, a standard LED, or a buzzer—directly to the microcontroller's digital pins to provide immediate physical, visual, or audible alerts to the wearer if abnormal biometric thresholds are crossed.

Why Build This

Design and prototype a functional Internet of Things (IoT) wearable device suitable for remote patient monitoring and telemedicine applications.

Gain hands-on experience integrating optical biomedical sensors with a compact coin-sized microcontroller running custom Arduino code.

Implement cloud-connected messaging architectures by programming an automated Telegram chatbot to deliver real-time sensor telemetry and emergency alerts to smartphones.

Real-World Application

Remote patient monitoring for elderly people, children, or individuals requiring continuous non-intrusive health tracking, allowing caregivers to receive updates and emergency alerts directly on their smartphones.

Skills You'll Learn

Biomedical sensor interfacing

I2C communication protocol

wireless network provisioning

IoT API integration

asynchronous firmware programming

power management for wearable electronics

Safety Precautions

No specific precautions noted for this build — always follow general electronics safety practices.

Technology Tags

IOT

WEARABLES

TELEGRAM BOT API

MAX30100

HEART RATE MONITORING

SPO2 SENSOR

WI-FI

MICROCONTROLLER

EMBEDDED C++

Frequently Asked Questions

Can I use any standard microcontroller board for this project?

This specific project is designed around the IndusBoard Coin microcontroller due to its compact form factor and built-in wireless capabilities necessary for communicating with the Telegram Bot API.

How does the Telegram bot receive updates from the tag?

The IndusBoard Coin connects to a local wireless network and uses the AsyncTelegram2 library to securely transmit health data packets directly through the Telegram Bot API to your smartphone.

Are the vibration motor and buzzer mandatory for the circuit to work?

No, the vibration motor, LED, and buzzer are completely optional peripherals intended for local alert notifications and are not strictly required for the core pulse oximetry and Telegram messaging functions to operate.

Gallery

This page is part of Kitkraft's Project Hub — a curated collection of electronics & robotics projects gathered from the maker community to help students and hobbyists discover and learn to build. Kitkraft does not claim authorship of the original project, and makes no representation as to the accuracy, completeness or safety of third-party source material. The summary and "How It Works" explanation above are AI-generated, rewritten with reference to the original tutorial — not a reproduction of it. Full credit and a direct link to the original source are provided above. If you're the original creator and have a concern about how your work is represented here, please contact us and we'll address it promptly.

Kitkraft Project Hub — curated from the maker community, credited at the source.

PRJ-01326