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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...

TTP223 Capacitive Touch Sensor Features The TTP223 sensor can be used in a variety of applications such as smartphones and tablets. The sensor can recognize objects even from behind glass and thin surfaces. The operating voltage is 2 to 5.5V. The maximum response time is 220 milliseconds. This module has two non-soldered adjustment pins: A and B. The working modes are as follows:A and B both open: The default value of the output pin is LOW. When the sensor is subjected to touch, the output is HIGH, and...

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...

X9C103S Digital Potentiometer Module Features The X9C103S 10k digital potentiometer module is a variable resistor whose resistance value can be varied digitally from a microcontroller. It consists of a 3-pin output which can replace a mechanical potentiometer which has 3 pins. This module has 99 resistance components and the final resistor is controlled by a 3-wire interface. X9C103S Digital Potentiometer Module Pinout This sensor has 8 wires:VCC: Module power suppl...

PCF8563 RTC Module Features The PCF8563 real time clock module features high accuracy and low power consumption. This RTC maintains seconds, minutes, hours, day, date, month, and year information. In this module, the date is set based on whether the month is 29, 30 or 31 days and also it is leap year or not. This module can also be used in 12-hour and 24-hour formats. DS3231 RTC Module Pinout This module has 6 pins:INT: interrupt outputCOT: Clock outputSCL: Seria...

1.3 INCH OLED Display Module Features OLED displays are high contrast and high-resolution displays, so they provide a good readability for users. There is no backlight on OLED, and it uses independent-illuminated pixels. So, it is thinner, and more elegant in compare to LCDs. The driver chip is SH1106, which provides I2C/SPI communication. You can download the datasheet of this module here.  [wpdm_package id='19917'] 1.3 INCH OLED Display Module Pinout This...

DS3231 RTC Module Features DS3231 real time clock module features high accuracy and low power consumption. This RTC module maintains seconds, minutes, hours, day, date, month, and year information. In this module, the date is set based on whether the month is 29, 30 or 31 days, and also whether it is leap year or not. This module can be used in 12-hour and 24-hour formats. Note The DS3231 module is available in two different types on the market. There is actually no difference between the two ...

Learn how to interface the BTS7960 43A high-power motor driver module with Arduino. This guide covers the key features of the BTS7960 motor driver, its pinout configuration, and provides step-by-step instructions for circuit connection and code implementation. Take control of your motors with this versatile and powerful motor driver. BTS7960 43A Motor Driver Features The BTS7960 is a high-current full-bridge motor driver module. The Key features are: Input voltage: 6V to 27V Maximum allowable current: ...

ULN2003 Stepper Motor Driver Features We usually use stepper motors when we need precise control of the motor shaft. These motors can be used in robot arm, 3D printers, CNC machines, etc. 28BJY-48 is a kind of stepper motor. In full step mode, these motors have a 1 to 64 speed reduction gearbox and eachfull 360 degree rotation consists of 32 steps. The ULN2003 driver is commonly used to control these motors. ULN2003 IC consists of 7 pairs of Darlington transistors, each pair can withstand 500mA and 50V. Th...

DRV8833 Dual Motor Driver Features Today, speed and direction control of DC motors is very important and useful. The H-bridge circuit is one of the most common techniques to control a DC motor. The DRV8833 dual-channel module uses this technique to control two DC motors.This dual H-bridge motor driver can drive two DC motors, a stepper motor or other inductive loads.The driver supply voltage is 2.7 to 10.8V and the allowable continuous current is 1.5A and the maximum allowable current is 2A.Some common...