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 negative feedback...
An ohmmeter is an instrument that measures the electrical resistance across two points of a body or material. The device usually works by applying a small quantity of current to the test resistance which...
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...
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....
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...
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() { }...
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...
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...
Relay modules are assembled units commonly included with Optocouplers, diodes, LEDs, transistors, etc. An input section of the relay module consists of three terminals VCC, GND, and a signal input (IN1). The output contacts...
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...
