Control Servo with Light using Arduino circuit

This is a simple PWM modulator circuit. Comparing the message signal to a ramp or triangular waveform is the simplest way to produce a PWM signal. When the... The PWM (Pulse Width Modulation) modulator circuit operates by comparing a modulating signal,...

Arduino Power

Controlling higher-power devices such as lights, motors, pumps, and doors with an Arduino can be both fascinating and practical. However, managing power line voltages presents challenges and potential hazards. There are essential differences between controlling AC and DC power, as...

ultrasound How do I drive an ultrasonic transducer with an Arduino

A cat deterrent system utilizing an Arduino, similar to existing models. Detection has been successfully implemented, and it has been determined that an ultrasonic transducer is required to generate the necessary deterrent sound. The proposed cat deterrent system employs an Arduino...

Simple servo controller Schematic

This circuit enables the testing of a servo motor. The angle of the servo can be adjusted using a 10k potentiometer. It is possible that not all positions can be achieved with this circuit; experimenting with different resistors may provide...

pwm lamp dimmer using ne555

A simple and efficient PWM lamp dimmer utilizing the timer IC NE555 is presented in this article. Traditional linear regulator-based dimmers achieve a maximum efficiency of only 50%, which is significantly lower than PWM-based dimmers that can exceed 90% efficiency....

Arduino Mega 2560

Arduino Mega 2560 Board tutorials, projects, drivers, schematic, and complete information. The Arduino Mega 2560 is a microcontroller board based on the ATmega2560. It features 54 digital input/output pins, 16 analog inputs, 4 UARTs (hardware serial ports), a 16 MHz crystal...

Motor speed controller with timer 555

Pulse width modulation (PWM) is a technique to control analog circuits with a digital output. PWM is used in many applications, especially to control light intensity and speed on motors. A PWM circuit makes a square wave with a variable...

Arduino Calibration

This example demonstrates a technique for calibrating sensor input. The Arduino takes sensor readings for five seconds during startup and tracks the highest and lowest values obtained. These sensor readings during the first five seconds of the sketch execution define...

Arduino Make your own hardware

The Raspberry Pi single-board computer (SBC) has garnered significant attention for being a complete system priced under $50. However, it is not the most affordable computing device available. For only $13.50, a mini computer that connects to a PC's USB...