Project Hub /IoT & Connected Devices/Telemetry & Remote Logging/Remote Wireless Display Of Sensor Data

Intermediate

ESP8266

₹500 – ₹1,500

3 – 6 Hours

Partial Kit

Remote Wireless Display Of Sensor Data

This project demonstrates how to use a NodeMCU ESP8266 board to read temperature sensor data and display it wirelessly over a web browser.

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.

NodeMCU ESP8266 WIFI development board based on CP2102 Rs. 660.00
Cable for Arduino Nano (USB 2.0 A to USB 2.0 Mini B) 30cm Rs. 69.00
Jumper Wire 10 Pin Male To Male 20cm 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 Female 20cm Rs. 45.00

Selected: Rs. 0.00

We don't carry yet: LM35 / Analog Temp Sensor

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How It Works

The Remote Wireless Display Of Sensor Data project centers on the NodeMCU ESP8266-12 board, which bridges physical environmental sensing with local network connectivity. An LM35 temperature sensor is connected to the NodeMCU board using connecting wires to provide an analog voltage proportional to the ambient temperature. The ESP8266 microcontroller utilizes its built-in analog-to-digital converter to read this voltage level. Powered via a Micro-USB cable connected to a PC or laptop during programming and initial testing, the NodeMCU runs MicroPython firmware flashed onto it using an ESP8266 flasher tool and configured via the Arduino IDE. Once programmed, the ESP8266 connects to a local wireless network and hosts a lightweight web server. When a user accesses the board's IP address through a web browser on a connected device, the microcontroller processes the request, reads the current temperature data from the LM35 sensor, and dynamically renders the information on a webpage, allowing for continuous remote monitoring without physical tethering.

Why Build This

Design a scalable internet-of-things (IoT) node capable of serving live telemetry data directly to standard web browsers over Wi-Fi.

Gain practical experience interfacing analog sensors with microcontrollers that feature integrated wireless networking capabilities.

Implement lightweight embedded web servers using MicroPython firmware for remote instrumentation and industrial monitoring applications.

Real-World Application

Remote industrial temperature monitoring, environmental sensing, smart home automation, and agricultural IoT systems.

Skills You'll Learn

MicroPython firmware flashing

analog-to-digital conversion

analog sensor interfacing

embedded web server hosting

wireless network configuration

Safety Precautions

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

Technology Tags

ESP8266

WI-FI

IOT

MICROPYTHON

LM35

SENSORS

WEB SERVER

Frequently Asked Questions

Can I program the NodeMCU ESP8266 using MicroPython instead of C++ in the Arduino IDE?

Yes, this project uses MicroPython firmware, which is flashed onto the ESP8266 board using an external flashing tool, allowing you to write Python scripts to read the sensor and host the web server.

How does the web browser display the temperature data?

The ESP8266 acts as a local web server, so when you enter its IP address into a web browser on the same network, the board responds by sending a webpage containing the latest temperature reading from the LM35.

What is the purpose of the Micro-USB cable in this setup?

The Micro-USB cable connects the NodeMCU board to your PC or laptop to supply power and facilitate data transfer when flashing the firmware and uploading your scripts.

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.

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