Over the next two days, the trio worked like a well-oiled machine. Rohan replaced CHIRP’s old microcontroller with a modern ESP32 board. He soldered connections, managed power supply units (PSU), and configured the GPIO pins for the sensors.
Rohan demonstrated: He walked away from the booth. CHIRP’s motion sensor detected movement. Instantly, Ananya’s phone—projected on a screen—received a notification: “Motion detected at 2:15 PM.” Then she touched a button on the app, and CHIRP announced, “Temperature: 24°C. All systems normal.” edumax computer books class 8
Ananya wrote the code in Arduino IDE and a companion mobile app in MIT App Inventor. She created conditional loops ( if motion detected, then send alert ), variables for temperature readings, and a function to make CHIRP say “Greetings, human!” when someone came near. Over the next two days, the trio worked
The Binary Code of Friendship
The judges—including the Headmistress—were impressed. “You’ve integrated sensors, wireless communication, mobile programming, and hardware assembly,” one judge said. “This is what Class 8 computer science should look like.” Rohan demonstrated: He walked away from the booth
Ananya pulled up a chair. “First, we don’t panic. Second, we use a Live USB to boot from a different OS, then run a disk recovery command. Third, we learn to keep cloud backups.” Within twenty minutes, she had navigated the Command Prompt like a wizard casting spells. The files reappeared.