@Sultan_Singh

For this project, I wanted to build something of my own instead of simply using ready-made cybersecurity firmware. I developed a custom firmware for my ESP32 DevKit using Visual Studio Code and connected it to an nRF24L01 PA+LNA module to experiment with different wireless technologies. I worked on features involving Wi-Fi, Bluetooth Low Energy (BLE), and 2.4 GHz RF monitoring, and created a command-based system so I could control the different functions directly through the Serial Monitor. Getting everything to work was not easy. One of my biggest challenges was making the hardware and software communicate properly, especially while configuring the SPI connection and pins for the nRF24L01. I also had to deal with problems involving libraries, timing, wireless channels, memory, and different ESP32 functions sometimes interfering with each other. There were many times when the code compiled but the hardware still did not behave the way I expected, so I had to test each part separately, check the wiring, read error messages, and keep modifying the code. Slowly, through a lot of trial and error, I was able to get the different parts working together. Building this firmware taught me much more than just programming—it helped me understand how hardware, software, wireless communication, and cybersecurity come together in a real embedded system.

I am very proud of how well this came together