3.1 QUESTION AND ANSWER - W-Div-Engg-Exploration-Odd-2026-27/Repo-11 GitHub Wiki

  1. QUESTION AND ANSWER
TEAM Number- 11 Team Number - 11
# Questions Answers Objective Function Constraint
1 What is the main purpose of the device? To autonomously track and cool a user at a desk ✅
2 How is the user detected? Using an ESP32 camera and ToF distance sensor array ✅
3 What processes the sensor and vision data? An onboard ESP32-S3 microcontroller ✅
4 How does the fan rotate horizontally? Using a brushless gimbal motor with magnetic encoder ✅
5 How does the fan tilt vertically? Using a dual-arm parallel linkage and gimbal motor ✅
6 How is continuous 180° rotation enabled? Using mechanical gearbox/rotor shaft of the main motor ✅
7 How is airflow adjusted based on distance? Scaling fan PWM speed proportionally to ToF distance data ✅
8 How can the user control the fan touchlessly? Using TinyML hand gesture recognition ✅
9 How is additional cooling provided? Using an ultrasonic piezo misting atomize ✅
10 What is the target cost of the prototype? Under ₹10,000 INR ✅
11 How will the user know tracking status? Via an RGB LED ring/status indicator ✅
12 What happens when the user leaves the desk? Automatically enters low-power sleep mode after 3 minutes ✅
13 How will the system be powered? External 12V DC power adapter with buck converter ✅
⚠️ **GitHub.com Fallback** ⚠️