Posts tagged Arduino PWM
DIY Arduino Board
DIY Arduino Board

A DIY Arduino board is presented here, with most of the capabilities of the classic Arduino Uno board, but with a slimmer profile and more flexibility in hardware. The advantage to using the DIY Arduino board is its ability to change the input voltage (2.7V - 5.5V), the crystal oscillator (0-16MHz), and the use of LEDs and regulators when needed. The DIY board is capable of very lower power modes, without the requirement of draining components such as LEDs or regulators. The ATmega328P chip is at the center of every Uno board (in recent years), and is also at the center of the DIY board, which allows the DIY Arduino to behave almost identically to the Uno board.

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Arduino, ElectronicsJoshua HriskoArduino, Arduino DIY, DIY, DIY Arduino, 16 MHz, Quartz Crystal, Quartz Crystal Oscillator, Crystal, Crystal Oscillator, Arduino Uno, Arduino DIY Boar, Arduino DIY Board, ATmega, ATmega328P, ATmega328, ATmega328p, 22pf, 22pf Capacitor, Capacitor, RGB, RGB LED, LED, PWM, Pulse-Width Modulation, Wiring, Arduino Wiring, Arduino PWM, Breadboard, Breadboard Arduino, Arduino Minimal, DIY Arduino Board, Multimeter, Arduino Power Consumption, Arduino Power, Arduino CurrentComment
Arduino Servo Motor Basics and Control
Arduino Servo Motor Basics and Control

In this tutorial, an Arduino board will be used to power and control a small servo motor. The basics and composition of an SG90 will be explored, and the application of several servo codes and applications will be given for another type of servo motor, the MG90S. The goal of this project is to introduce users into the workings of a servo motor, how PWM (pulse-width modulation) controls a servo motor, and how Arduino can interface with servo motors to produce desired movements to great precision.

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Arduino, ElectronicsJoshua HriskoArduino, Arduino Motor, Motor, Servo, Servo Motor, Arduino PWM, PWM, MG90S, Arduino Servo, Arduino Servo Motor, Arduino Joystick, Joystick, Servo Control, Servo Motor Control, Joystick Servo Control, SG90, Tower Pro, Serial, Serial Control, Motor Control, Serial Motor Control, DC Motor, Potentiometer, Wiring, Arduino Wiring, Arduino Code, Arduino Programming, Engineering, Engineer, Mechanical Engineering, tangent, atan2Comment
Controlling LEDs with A Multiplexer and Arduino
Controlling LEDs with A Multiplexer and Arduino

A demultiplexer will be used to control 8 LEDs using just 3 digital pins on the Arduino board. This method of demultiplexing frees up pins on the Arduino, but also makes control of multiple LEDs easier by consolidating the power given to each LED. This will allow us to use LEDs without resistors. In general, a demultiplexer uses N boolean outputs to control 2N switches. In our case, the CD4051 multiplexer will be used as a demultiplexer using 3 digital pins and boolean logic to control 8 individual LEDs. Several skills will also be developed, specifically with regard to programming in the Arduino programming language. Pulse-width modulation (or brightening and dimming) of LEDs will be explored, as well as randomization of LED blinks, along with the general selection process for boolean switching with the demultiplexer.

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Arduino, Electronics, ProgrammingJoshua HriskoLED, LEDs, Breadboard, Arduino, Arduino LED, Arduino LEDs, Arduino Uno, Arduino CH340, Arduino Multiplexer, Arduino Demultiplexer, Arduino Multiplexing, Arduino LED Multiplexing, Arduino LED Multiple, LED Array, Random, Arduino Random, Arduino Blink, Arduino PWM, PWM, Pulse-Width Modulation, Blink, BooleanComment