Project idea
A low-cost, wireless health monitor transmits body temperature and heartbeat from a bedside node to a receiver using RF, enabling continuous observation without frequent manual checks.
Project description
A digital temperature sensor and heartbeat sensor feed readings to an 8051, which encodes and displays data on an LCD and transmits it via an RF Tx module. The receiver decodes the data on a second 8051 and shows live vitals on an LCD, with a buzzer for threshold alerts and fully untethered bedside-to-desk operation.
Components
8051 Microcontroller
Heartbeat Sensor
Temperature Sensor
RF Tx Rx
LCD Display
Buzzer
Resistors
Capacitors
Transistors
Cables and Connectors
Diodes
PCB and Breadboards
LED
Transformer/Adapter
Push Buttons
Switch
IC
IC Sockets
Features
Wireless RF link for continuous bedside-to-desk monitoring with minimal power and simple antenna requirements.
Dual-LCD display (patient node and doctor’s receiver) with encoded data framing and buzzer alarms for abnormal vitals.
Modular build using standard 8051 C code, easy-to-replace socketed ICs, and breadboard/perfboard prototyping.
Applications
Remote ward vitals tracking for temperature and pulse in clinics and nursing stations.
Home-care monitoring kits, student labs, and rapid prototyping for biomedical telemetry.
Triage overflow and mobile screening setups where wired monitoring is impractical.
Project Includes:
Project components
Circuit diagram / circuit connections
Source code
Instructions document
Project Types:
- DIY KIT (Do It Yourself KIT) - Along with the components, you will get the source code, circuit diagram/circuit connections, and instructions document to help you build the project easily.
- Ready-Made - We are providing a fully assembled, tested and ready-made project soldered on a PCB with all the other components, code & circuit diagram.
Dimensions
Patient node: 12 × 9 × 4 cm(L x W x H)
Receiver unit: 12 × 9 × 4 cm(L x W x H)
Shipping dimensions
Boxed set (both units + adapter + cables): 25 × 18 × 8 cm(L x W x H)
Weight
Net assembled weight (both units): 0.35 kg
Estimated weight
Project electronics (without packaging): 1 kg
Notes: All the products are made by LearnElectronics India and not for re-sale.

