Category: Arduino

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Arduino ohmmeter – How to make?

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

JHD162A 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...

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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 object is indicated by 4 LEDs. It is calculated in terms of the voltage obtained by IR sensor at different object distances....

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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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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 interfacing

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...

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HMC5883L arduino compass tutorial

HMC5883L 3-Axis Compass Module Arduino interface The compass module consists of an HMC5883L three-axis (Cartesian axes x, y and z) magnetic field chip which consists of 3 magneto-resistive sensors arranged in axes perpendicular to...

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Send data from processing to arduino

Processing is an open source processing language and IDE tool, based on visual arts with computer programming. For electronic purposes, the processing tool can be used to communicate with  Arduino boards, Raspberry Pi, etc.,...