[180] Arduino Getting Started: Analog Light Sensor

In this tutorial, we demonstrate using a photoresistor to measure light intensity with an Arduino. We cover the circuit setup and the code required to read the light levels and control an LED based on the readings.

This series is possible thanks to the kind support of Sunfounder, an online store that sells high-quality hardware and kits for Makers. Visit Sunfounder at https://sunfounder.com.

In this series, I use the SunFounder 3 in 1 Ultimate Starter Kit with Original Arduino Uno R4 Minima, including high-quality sensors, actuators, power supplies, and Original Arduino Uno R4 Minima for diverse projects and skill-building. Get it (affiliate link): https://www.sunfounder.com/collection...

⏰ Timestamps

00:00 - 00:22: Connecting Power and Ground 🔌
00:22 - 00:41: Setting Up the Voltage Divider 🛠️
00:41 - 00:58: Understanding the Voltage Divider 📊
00:58 - 01:18: Reading Analog Values 📟
01:18 - 01:30: Writing the Program 💻
01:30 - 01:43: Code Explanation 🔍
01:43 - 01:56: Initializing Pins and Serial Communication 🔧
01:56 - 02:09: Reading and Printing Light Levels 🖨️
02:09 - 02:14: Adding a Delay ⏳
02:14 - 02:28: Testing the Circuit ⚙️
02:28 - 02:34: Observing the Serial Monitor 👀
02:34 - 02:45: Voltage Divider Explanation 🔋
02:45 - 02:55: Applications of Voltage Dividers 🌐
02:55 - 03:07: Conclusion 🏁
03:07 - 03:12: Invitation to Subscribe 📢

📚 Main Learning Objectives

Understand how to connect a photoresistor and resistor to create a voltage divider.
Learn to read analog values from a photoresistor using analogRead.
Convert analog voltage to digital values representing light intensity.
Control an LED based on light intensity readings.
Print light intensity values to the serial monitor for debugging.
Apply the concept of voltage dividers to various analog sensors.

📢 Invitation to Subscribe

If you found this tutorial helpful, please give it a thumbs up 👍 and subscribe to our channel for more Arduino tutorials. Your support motivates us to keep crafting content that fuels your maker journey. Feel free to share what you'd like to see next in the comments below. Keep exploring, and we'll see you in the next video. 🚀