16. Automatic Street Light (LDR) - RoboticSchools

Light Distribution Rollercoaster 🎢

Light Dependent Resistor 🌞

Light Detection Rainbow 🎨

Light Digital Riddle 🧩

Plug it into the magical analog pins! 🪄

Switch it to a different digital pin for a fresh start! 💻

Give its resistive screw a little twisty twist! 🔩

Rewrite the code like a wizard! ✍️

Input devices that gather information from the environment! 🌎

Output devices that just print words! 🖨️

Input devices that tell stories! 📚

Output devices that only blink lights! 💡

0

1

255

1023

Any analog pin 📏

Any digital pin 💻

Power pin - 5V ⚡

GND pin ⬇️

To help the photoresistor send messages 📡

To limit the current and protect the photoresistor ⚡

To help the photoresistor detect more light ☀️

To turn the photoresistor into a super sensor 🦸‍♂️

Pin 13 cannot control LEDs 🚫

pinMode() cannot be used in setup() ❌

The LED pin should be INPUT 💡

The LDR sensor pin should usually be INPUT 📥

It changes its resistance based on light 💡

It increases voltage in darkness ⚡

It stores light energy 🌞

It converts light into sound 🔊