21. Light Following Robot Using LDR - RoboticSchools

What will the robot do when both sensors detect light? 💡🤖

• 🔄 Turn left

• 🔁 Turn right

• 🚗 Move forward

• 🛑 Stop moving

Which block should you use to read light values from LDR sensors? 💡📥

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If both sensors are not detecting light, what should the robot do? 🚫💡🤖

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Robot is always turning in one direction. What might be wrong? 🐞🔁

• 🔦❌ One LDR sensor is not working

• ⚙️🔌 Both motors are disconnected

• 🔄🤖 The robot is upside down

• 🔋✅ The Microbit battery is full

How many LDRs are typically used in a light-following robot? 🔦🤖

• 1️⃣

• 2️⃣

• 4️⃣

• 🚫 None

What will the robot do when the left sensor detects light and the right one doesn’t? 💡🤖

• Turn right ➡️

• Turn left ⬅️

• Move straight ⬆️

• Stop moving 🛑

What does L.D.R stand for? 🤔

• Light Detecting Resistor 💡

• Low Density Relay ⚙️

• Long Distance Reader 📡

• Line Detecting Robot 🤖

Why does a light-following robot use LDR sensors? 🤔💡🤖

• To hear sound 🔊

• To see light 👀💡

• To show numbers 🔢

• To play music 🎵

What happens if you turn OFF the light in front of the robot? 🌙🤖

• Robot moves faster ⬆️

• Robot spins 🔄

• Robot stops or searches 🛑

• Robot glows 💡

Light Following Robot is not moving after flashing a light. What is wrong in the code block? 🐞🤖🔦

• Wrong variable in the if condition ❌📦

• Motor speed is very slow 🐢⚙️

• Battery is low 🔋⬇️

• Light is not bright 🌙💡