This project uses electronic and integrated technology for energy saving, smart places and safety system. Main idea is to sense human presence and movement. We use mix of sensors and microcontroller to do this work. In this tutorial for Human Presence and Motion Sensor Circuit using Arduino we have used STHS34PF80 sensor, IC 7809 and […]
Reverse Car Parking Sensor Circuit using IC LM358
Modern cars must have reverse parking sensors. These give sound and light signals to help driver avoid crash when going back. Sensors use infrared or ultrasonic to find objects behind car. This article for Reverse Car Parking Sensor Circuit using IC LM358 op-amp is to make simple reverse parking sensor circuit. Circuit is easy and […]
Simple Op-amp IC Tester Circuit
Op-amps (operational amplifiers) are very important in electronics. They are used for filtering, amplify signals and analog signal work. Before using op-amp IC we must test it to ensure it works good and correct. To check op-amp fast and easy we have made a Simple Op-amp IC Tester Circuit Op-amp is like voltage comparator and […]
Simple Alcohol Detector Circuit using IC LM393
We show how to make Simple Alcohol Detector Circuit using IC LM393 This circuit uses LEDs, resistors, capacitor, MQ-3 sensor and LM393 IC. Alcohol detector find alcohol gas in air and give warning through light or sound. Today in this article we will talk about MQ-3 sensor. MQ-3 is common sensor for alcohol which is […]
Solar Tracking Circuit using Arduino
Today solar power is very important because world need clean and green energy. Solar tracking help make solar panels work better. It move solar panel with sun all day so panel get more sunlight and gives more power. Solar Tracking Circuit using Arduino is smart, DIY and fun project. Arduino is open-source board which is […]
DIY Temperature-Controlled Fan Circuit with Arduino
Modern devices and homes need good temperature control. It help gadgets live long and make place comfortable. One example is fan with temperature control. Fan change speed by room temperature. This keep temperature okay, save power and with less noise. IC LM35 sensor is used for check the temperature. When it is too hot 5V […]