https://github.com/rajdeep13-coder/smart-wiper

Project that was made by my team at IOTRICITY-S2 Grand Finale, 3rd Sept 2025
https://github.com/rajdeep13-coder/smart-wiper

esp8266-projects iot

Last synced: 10 months ago
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Project that was made by my team at IOTRICITY-S2 Grand Finale, 3rd Sept 2025

• Host: GitHub
• URL: https://github.com/rajdeep13-coder/smart-wiper
• Owner: rajdeep13-coder
• Created: 2025-09-04T18:10:00.000Z (10 months ago)
• Default Branch: master
• Last Pushed: 2025-09-04T18:30:51.000Z (10 months ago)
• Last Synced: 2025-09-04T20:31:41.135Z (10 months ago)
• Topics: esp8266-projects, iot
• Language: C++
• Homepage:
• Size: 4.88 MB
• Stars: 0
• Watchers: 0
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

          
# Question

Anindya was busy flexing his biceps while driving in the rain. But every time he had to stop mid-pose to switch on the wiper, his "aesthetic" was ruined. This constant interruption annoyed him badly. Design a smart wiper for Anindya using a rain sensor, servo motor, ESP8266, and a battery.

![IoT](https://img.shields.io/badge/IoT-Project-blue?style=for-the-badge)

![Hackathon](https://img.shields.io/badge/IoTricity-S2-orange?style=for-the-badge)

#  Smart Wiper System

The **Smart Wiper System** automates windshield wiping using a **two-pin HW-028 rain sensor**, an **IR obstacle avoidance sensor**, an **SG90 servo motor**, and an **ESP8266 (NodeMCU)**.  

It ensures that when it rains, the servo-powered wiper activates, and when an obstacle is detected, the system pauses — keeping the view (and Anindya’s flexing) uninterrupted.

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##  Hardware Requirements

- **ESP8266 (NodeMCU)** → Main controller (handles sensors + servo logic)  

- **SG90 Servo Motor** → Moves the wiper arm  

  - Signal → `D1 (GPIO5)`  

  - VCC → `5V`  

  - GND → Negative rail  

- **HW-028 Rain Sensor (Two-Pin)** → Detects rain via resistance changes, linked to IR sensor  

- **IR Sensor (e.g., KY-032)** → Relays rain/obstacle detection  

  - OUT → `D3 (GPIO0)`  

- **Battery + 5V Regulator (≥1A)** → Powers the circuit  

  - ESP8266: ~100–300 mA  

  - Servo: ~100–500 mA  

  - IR Sensor: ~20–50 mA  

  - Rain Sensor: ~10–20 mA  

- Breadboard & jumper wires for prototyping