ESP32 + DHT22 IoT Project | Send Temperature & Humidity Data to Google Sheets |Step-by-Step Tutorial

In this video, you will learn how to build an IoT Temperature & Humidity Monitoring System using the ESP32 and DHT22 sensor, and send the live sensor data directly to Google Sheets. This tutorial covers the complete workflow — wiring the DHT22 to ESP32, reading data in Arduino IDE, creating a Google Apps Script endpoint, and uploading real-time sensor values to Google Sheets for logging and visualization.

This project is ideal for IoT beginners, engineering students, hobbyists, and smart home automation enthusiasts who want to record sensor data on the cloud without using Firebase or ThingSpeak.

🔥 What You Will Learn

✔ How to interface DHT22 with ESP32
✔ How to read Temperature & Humidity using Arduino IDE
✔ How to create a Google Sheet for IoT logging
✔ How to write a Google Apps Script Web API
✔ How to send HTTP POST data from ESP32 to Google Sheets
✔ How to view and analyze live IoT data in Google Sheets
✔ Troubleshooting tips for ESP32 + Script communication

🧰 Components Required

ESP32 Development Board

DHT22 (AM2302) Temperature & Humidity Sensor

10kΩ Pull-up Resistor (optional)

Jumper Wires

Google Account

Arduino IDE

🪜 Steps Covered in This Video

Understanding DHT22 sensor basics

Wiring diagram for ESP32 + DHT22

Installing DHT library in Arduino IDE

Writing the ESP32 code to read sensor data

Creating Google Sheet for IoT data storage

Writing Google Apps Script to accept POST requests

Deploying script as a Web App API

Sending data from ESP32 to Google Sheets

Checking live updates in the Sheet

Final testing & automation tips

🏁 Who Is This Video For?

IoT & Embedded Systems Beginners

B.Tech / Diploma / Engineering Students

Makers & Hobbyists

Home Automation Projects

Cloud Data Logging Enthusiasts

🔧 Project Applications

Smart Home Monitoring

Weather Station

Greenhouse Temperature Logging

Room Environment Monitoring

IoT Data Analytics using Google Sheets

🔖 Hashtags

#ESP32 #DHT22 #IoT #GoogleSheets #ArduinoIDE #CloudLogging
#IoTProjects #TechTutorial #EmbeddedSystems #SmartMonitoring
#SensorProject #ElectronicsProjects #ESP32Projects #Microcontroller #DataLogging