Shakthikulangara Project 2

Three science-fair projects, rewritten from scratch: firmware for every board, phone dashboards, a desktop robot-navigation app with a simulator and reinforcement learning, and the project reports.

Project	Folder	Board	What it does
⚡ Electronics: HazardGuard C3	electronics/hazardguard_c3	ESP32-C3	LPG (MQ-5), alcohol/solvent vapour (MQ-3), overheating (DHT11) and water-leak (soil probe) alarm with green/yellow/red LEDs and a phone dashboard
🐟 IoT: Marine Fish Quality Monitor	iot/fish_quality_monitor	NodeMCU ESP8266	Watches a fishing boat's fish hold: ice temperature (DHT11), meltwater height and blocked drain outlet (ultrasonic), ammonia and methane from rotting fish (MQ-135, MQ-4). Logs the data, shows a summary on a TM1637 that flashes on faults, and gives the owner a phone dashboard, plus a laptop simulator. Wiring sheet
🤖 Robotics: MarkerPilot	robotics	ESP32 car + ESP32-C3 gateway	Ceiling camera + ArUco markers drive a robot car to clicked points or goal markers; Kalman filter, classic + RL brains, simulator
📄 Reports	reports	–	PDF reports for all three, rebuilt by python3 reports/build_reports.py

Install the MarkerPilot app

curl -fsSL https://raw.githubusercontent.com/aadil-sp/shakthikulangara-project-2/main/install/install.sh | bash

irm https://raw.githubusercontent.com/aadil-sp/shakthikulangara-project-2/main/install/install.ps1 | iex

install/INSTALL.md has the details, direct downloads and the pipx route.

Flash the boards

tools/flash.sh electronics      # HazardGuard C3            (ESP32-C3)
tools/flash.sh iot              # Fish Quality Monitor      (NodeMCU ESP8266)
tools/flash.sh car              # MarkerPilot car           (ESP32-WROOM-32)
tools/flash.sh gateway          # MarkerPilot USB gateway   (ESP32-C3)

You need arduino-cli with the esp32 core 3.x, the esp8266 core 3.x (for the NodeMCU) and the libraries DHT sensor library (Adafruit) and TM1637 (Avishay Orpaz, IoT only). Add a port as the second argument if more than one board is plugged in.

Board	Hotspot	Dashboard
HazardGuard C3	HazardGuard-C3 (open)	http://192.168.4.1
Fish Quality Monitor	Boat-Fish-Monitor (open)	http://192.168.4.1

Phones open the dashboard automatically when they join the hotspot.