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  🌞 DIY Arduino Solar Tracker with Motor Control – Complete Guide 🔧 Overview: This project uses Light Dependent Resistors (LDRs) to track the sun's position and adjust the orientation of a solar panel using two servo motors . Additionally, based on the sunlight intensity, it controls a motor using two buttons – ideal for automating a solar-powered device like a water pump. 🧰 Components Required: Component Quantity Description Arduino Uno 1 Microcontroller board Servo Motor (SG90/MG90) 2 For horizontal and vertical rotation LDR (Light Sensor) 5 For detecting sunlight intensity and direction 10kΩ Resistors 5 Pull-down resistors for each LDR Push Buttons 2 For controlling motor direction DC Motor 1 Can be used for pumping or rotation purposes NPN Transistor (optional) 1 For driving higher power motors Diode (1N4007) 1 For back EMF protection Power Supply (9V/12V) 1 To power the motor       Breadboard + Jumper Wires            ...

YouTube Video for this RC car Introduction In today's world, electronic waste (e-waste) is increasing rapidly, but instead of letting it go to waste, why not  repurpose and rebuild  something amazing? In this project, I took an  old, non-working RC car  from an  e-waste shop  and restored it completely from scratch. My goal was to convert it into a  Bluetooth-controlled RC car  using  Arduino, a Bluetooth module, a 4-channel relay, and a battery . In this blog, I'll  walk you through the entire process —from sourcing the  RC car chassis  to rewiring and coding it for smooth operation. Let’s get started! Materials Required Here are the components I used to restore and upgrade my RC car: ✅ Old RC Car Chassis – Taken from an e-waste shop ✅ Arduino Uno/Nano – Acts as the brain of the RC car ✅ HC-05 Bluetooth Module – For wireless control via a smartphone ✅ 4-Channel Relay Module – To control the motors ✅ 12V Battery (Lithium-io...