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Overview In this tutorial, you’ll learn how to use a 8×8 dot matrix LED module with IC MAX7219. At the end, you’ll be able to display any shape or text on one or more Dot matrix easily, fixed or scrolled, using only 4 digital pins of arduino. What You Will Learn What dot matrix LED is How to use Dot matrix LEDs with Arduino Displaying specific shapes on a Dot matrix LED module Casca...

MPS20N0040D Pressure Module Features The MPS20N0040D Pressure and Altitude Sensor Module is an MPS20N0040D pressure sensor that receives altitude data and transmits it to the HX710 IC, which is an ADC converter. This module is used to measure the ambient pressure and the pressure difference of liquid levels. Note: This module does not support I2C communication. You can download the datasheet of this module here.[wpdm_package id='17459'] MPS20N0040D Pressure ...

BME280 Module Features The BOSCH BME280 is a small-size, high accuracy barometric pressure module. Its small dimensions and low power consumption makes it a suitable choice for mobile phones, GPS modules and smart watches. BME280 technology is based on piezoelectric pressure and has a high accuracy, linearity and high stability and durability. In this tutorial, you will learn how to interface this module using I2C protocol. You can download the datasheet of this module here. [wpdm_package...

R308 Biometric Fingerprint Module Features R308 biometric fingerprint module is a high-precision, high-performance matching algorithm and high-capacity flash chip. It works based on fingerprint image processing, matching, memory search and performing and desired functions. It uses serial communication in order to communicate with microcontroller. The default Baud Rate is 57600, and it is not possible to change it. This module can store up to 500 fingerprints. You can down...

TSD-10 Thermometrics Turbidity Sensor Features The TSD-10 turbidity sensor measures the turbidity using optics and light passing through the liquid. This sensor has an analog output and requires an ADC converter. It is used in washing machines to measure the density of water turbidity. By using an optical transistor and optical diodes, it measures the amount of light coming from the source of the light to the light receiver, in order to calculate water turbidity. This sensor has a waterproof body. Note You ...

Learn how to interface a 4x3 membrane matrix keypad with Arduino using this comprehensive tutorial. By following the steps outlined below, you can easily connect the keypad to your Arduino and start using its 12 buttons with only 7 pins on the microcontroller. Features of the 4x3 Matrix Keypad Keypads are one of the most popular components that are widely used in electronics. Everybody can communicate with the system by switches. Normally, every key occupies one digital pin of the microcontroller. But by us...

OMRON Photoelectric Sensor Features The Omran photoelectric sensor can be used to detect obstacles and objects at 5 to 100 mm distance. There is an LED on the sensor that is always off and turns on when it detect an obstacle. You can also change the LED status using the potentiometer which is on sensor. (That is, the LED is always on and will turn off when the obstacle is detected.) There is another potentiometer on the sensor that can be used to change the sensitivity of the sensor (increase or decrease th...