Flex sensor is a small strip that changes resistance when we bend it. When the sensor remains straight, it has low resistance and when it bends, its resistance increases; also many robots, gloves, gaming devices, medical tools, wearables, and other projects use this sensor. Additionally, sensor works simple, as with more bend it gives more […]
Hobby Circuits
Arduino Based Smart Car Parking Sensor Circuit
Today parking is big problem everywhere, so here, parking become easy with this Arduino idea; we made small Arduino Based Smart Car Parking Sensor Circuit. This system detects car and display free or busy slot automatic, then Arduino brain tell LCD which slot is free. Therefore, there is no confusion, no searching, just smart slot […]
555 Timer Astable Multivibrator Circuit
This 555 Timer Astable Multivibrator Circuit is simple and easy; also astable means output never stays stable and output keeps switching high and low again and again. Moreover, the circuit creates square-wave pulses and drives LED blinking, tone generation, clock signals, and many hobby projects. Circuit Working: Parts List: Components Quantity Resistors 1k ohm, 100k […]
Rain Detector Circuit using Arduino
This project for Rain Detector Circuit using Arduino shows how to detect rain, here, rain sensor plate feels water drops. Then, the module gives analog and digital signals, and the Arduino reads these signals and finally, the LED glows when it starts raining. Therefore, this low-cost project is easy for beginners to build. Arduino Code: […]
Railway Track Accident Prevention Circuit using Arduino
Railway accidents happen because obstacles come on railway track, because many trains cannot stop fast; therefore, this project uses Arduino Uno, ultrasonic sensor, relay and motor or servo to give warning or stop mechanism. The system checks distance and if object comes close, relay activates and motor moves barrier or alarm system, also this helps […]
Arduino Based Pulse Monitoring Circuit
This project show how to make a simple Arduino Based Pulse Monitoring Circuit, as it uses Arduino Nano, pulse sensor, OLED display, buzzer, an LED; also the system reads heartbeat from finger sensor. Then Arduino calculate pulse per minute and OLED show result; after that LED and buzzer give alert when pulse go high or […]