Category: Arduino

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How to make a Digital Arduino Voltmeter

Here explain the different methods to precisely measure and display DC input voltages using Arduino. This can be used to measure battery voltage, sensor readings, etc. It can be even used for measuring higher voltages with...

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Servo motor control using arduino

Servo motor A servo motor is a rotary actuator mostly coupled with a shaft or arm. It has a position control associated with the servo mechanism. It uses a closed-loop control system with error-sensing...

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Make Arduino Ohmmeter – How to Measure Resistance?

An ohmmeter is an instrument that measures the electrical resistance of a material. Ohmmeters calculates the sample resistance value by applying the Ohm’s law V=IR. It usually works by measuring the voltage drop by applying a...

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LCD interfacing with Arduino Tutorial

16×2 LCD display LCD displays are a common part of most of the embedded system projects, as it is the simplest readout method to display user instruction, text or output values etc.. This article...

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Vibration sensor alarm project arduino

Vibration sensor circuit uses a Piezoelectric sensor or PZT transducer. A piezoelectric sensor works with the piezoelectric effect, which is the ability of certain materials to generate an electric charge in response to the applied physical stress....

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Obstacle detection using IR sensor arduino

In this IR proximity sensor system, the distance from the sensor to the object is indicated by 4 LEDs. It is calculated in terms of the voltage obtained by the IR sensor at different...

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Arduino tone generator

This method is to generate a simple square wave tone using Arduino. Connect the output pin 9 to a buzzer or speaker. Code 1 void setup() {  pinMode(9, OUTPUT);  tone(9,260); } void loop() {  }...

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Controlling a LED using arduino serial monitor

Arduino Serial Communication A Serial communication is a method of transmitting data as a train of 1s and 0s, i.e. only one bit for a clock cycle of binary coded data. Or one bit...

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How to make arduino attiny programmer shield

Arduino shields are additional functional boards which can be quickly plugged on top of  Arduino boards. An ATtiny programming shield is used to upload the Arduino programs to an ATtiny chip, using an Arduino...

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Arduino Relay Module Connection Tutorial

Relay modules are assembled units commonly included with Optocouplers, diodes, LED’s, transistors, etc.. So, for the Arduino interfacing we just have to connect a supply voltage, GND and input signal connection. An input section...