This project is for Arduino Based Automatic Gate Opening and Closing Circuit. This system uses Arduino UNO, Ultrasonic sensor, NPN transistor, Servo motor, LCD display ,12V battery and few resistors. When someone comes in front of the gate the ultrasonic sensor detect distance and send signal to Arduino. Arduino then control motor to open or […]
Sensors and Detectors
POV Project with LEDs and Arduino Circuit
POV means Persistence of Vision. Our eyes cannot see very fast blinking light separately. If light blinks very fast then we see it like a line or picture. Using this idea we can create letters or shapes with some LEDs. Arduino controls LEDs in speed to make effect of display. This project uses Arduino Nano, […]
Electromagnet Levitation Circuit with Hall Effect Sensor
Magnetic levitation is fun science project. In this Electromagnet Levitation Circuit with Hall Effect Sensor, small magnet can float in air without a touch. It use electromagnet and hall sensor. Hall sensor see magnet position and transistor gives current to coil. This make balance of magnet force and gravity, so magnet look magic floating. It […]
Simple DIY Automatic Plant Watering Circuit
Plant need water but many time we forget. For this problem we have made a Simple DIY Automatic Plant Watering Circuit Project use soil sensor, small pump, MOSFET and some parts. System checks soil wet or dry and pump start only when soil is dry. Circuit is very easy with no Arduino and with no […]
Touchless Dustbin Circuit using Arduino Uno and Ultrasonic Sensor
This is simple and useful mini project for Touchless Dustbin Circuit using Arduino Uno and Ultrasonic Sensor. It is called smart dustbin or automatic dustbin. In normal dustbin we have to touch lid by hand which is not hygienic. In smart dustbin the lid opens automatically when person comes near. It uses Arduino, ultrasonic sensor […]
Buzzer Alert at 0°C Indicator Circuit
In winter season, water and surrounding air can go below zero degree. At that time it is useful to have a small alarm which tells us when temperature goes near freezing point. This Buzzer Alert at 0°C Indicator Circuit uses thermistor sensor, one op-amp IC and a piezo buzzer to make sound alarm when temperature […]