IIT (BHU) Student Develops Wi-Fi Controlled Wireless Ignition System, A New Step in Rocket Technology

Varanasi: Young scientists and students in India are constantly pushing technology forward through innovative projects. In this spirit, Dipti Ulhas Rupwate, a student at IIT (BHU) Varanasi, has developed a special project where she created a wireless igniter using NodeMCU ESP8266.

Dipti, who studied Bioengineering and Biomedical Sciences, was also part of her university’s Astronomy Club during her college years. Along with her team, she developed a wireless ignition system for rockets that can be controlled remotely. Her team’s secretary, Om Biradar, also made significant contributions to the project.

How the Wireless Ignition System Works and Its Special Features

Dipti explained that the system’s most unique feature is that it works through Wi-Fi. This means it can be easily controlled from any mobile phone or laptop browser. She shared that the project was initially developed in a very basic way, so that each step could be thoroughly tested. First, the necessary drivers were installed to connect the NodeMCU to the computer, ensuring the device was recognized correctly. She also made sure that the USB cable used supported data transfer, as using a charging-only cable can prevent the device from working properly.

Once the basic setup was ready, the team tested it using an LED. By connecting through Wi-Fi, the LED was turned ON and OFF through the browser. This confirmed that the system could receive and execute remote commands correctly. Dipti said this was a crucial step, as it built confidence for moving on to the high-power setup.

Next, the real ignition system was prepared. Instead of the LED, a nichrome wire was used. Nichrome is a metal that heats up quickly when electric current passes through it and is commonly used in ignition systems. To power it, a high-power Li-ion battery and a MOSFET were used. MOSFET is an electronic component that safely controls high current using a low-voltage signal. The signal from the NodeMCU controls the MOSFET, which then allows the battery current to pass to the nichrome wire, heating it up and triggering ignition.

Dipti also emphasized that safety was a top priority throughout the project. Ignition tests were always conducted from a safe distance and away from flammable materials. Safe batteries and proper circuit design were used to prevent any risks.

She added that this project is not just a successful technical experiment, but also shows that Indian students can develop advanced technology even with limited resources. In the future, this system can be upgraded for multi-channel ignition, timer-based systems, and larger rocket projects. Dipti believes that this innovation is a great example of inspiration for the next generation.