Simple Circuits

Automatic Toll Gate System Using Arduino Automatic Toll Gate System Using Arduino Build a professional automatic toll gate system that uses ultrasonic sensors to detect vehicles, servo-controlled gates for automated access, and an OLED display for real-time vehicle counting and system status. Project Overview This sophisticated automatic toll gate system features ultrasonic distance sensing for vehicle detection, smooth servo-controlled gate operation with acceleration/deceleration algorithms, real-time vehicle counting, and OLED display showing count and gate position. The system uses LED indicators for visual feedback and includes emergency safety features. Key Features 📡 Ultrasonic Detection HC-SR04 sensor detects vehicles within 20cm range with high accuracy ...

Automatic Car Parking System Using Solar Shed Automatic Car Parking System Using Solar Shed Complete System Overview Circuit Diagram Solar Shed Structure Build a smart, self-powered automatic car parking system that charges itself through a solar shed! This project combines renewable energy with automated parking management, complete with rain drainage system and real-time slot monitoring. Project Overview This innovative system uses IR sensors to detect vehicle entry/exit, a servo-controlled gate for automated access, and an LCD display for real-time parking slot information. The entire system is powered by a solar shed with 4x 6V solar panels, making it completely energy-independent! Key Features Solar Powered: 4x 6V solar panels charge the ent...

Traffic Light Using Arduino Uno and OLED Display Traffic Light Using Arduino Uno and OLED Display This project creates a realistic traffic light system with an OLED display timer, featuring custom PCB design and professional LED sequencing. The system follows standard traffic light patterns with visual countdown display for enhanced user experience. How the System Works Custom traffic light-shaped PCB with vertical LED arrangement (Red, Yellow, Green) 0.96" OLED display shows real-time countdown timer for each light phase Standard traffic light sequence: Red (15s) → Green (13s) → Yellow (3s) Yellow light features blinking "00" display for clear warning indication Each 10mm LED has dedicated 220 ohm current-limiting resistor Professional timing with 1-second delay between Red and Green transitions Powered by 7.4V ...

Dual Axis Solar Tracker System With Battery Charging Dual Axis Solar Tracker System With Battery Charging This project creates an advanced solar tracking system that follows the sun's movement across both horizontal and vertical axes for maximum energy efficiency. The system includes integrated battery charging with protection circuitry, making it a complete solar energy solution. How the System Works Four LDR modules with adjustable potentiometers detect sunlight intensity from all directions Two SG90 servo motors provide dual-axis movement (horizontal and vertical) Arduino continuously compares LDR readings and adjusts panel position for optimal sunlight Two 6V solar panels connected in series provide 12V output TP5100 charging module converts 12V to 8.4V for battery charging 2S 20A BMS protects the 7.4V battery from overcharging...