Search results for: 'ic arduino'

What is Reed Switch? Reed Switch is a magnetic switch that has two (on and off) switching modes, like a normal switch. The two pins are connected to each other by being in a magnetic field (for example, close to the magnet) and are disconnected by leaving that field.  These switches are used in open/close door detection sensors, seat belt sensors, collision detection sensors, etc.  Note Some magnetic switches are Normally Clo...

MAX9814 Microphone Module Features Microphone AGC amplifier module, based on MAX9814 chip, has a 2.7V to 5.5V power supply. This device features a built-in low-noise microphone bias. This module can also be connected directly to AUX output. Note The module’s output is not zero in silent mode and has an offset 1.25V. MAX9814 Microphone Module Pinout This module has 5 pins:  VCC: Module power supply – 2.7-5.5 V  GND: Ground  OUT: Analog data output to the microcontroller ...

SRF05 Ultrasonic Module Features SRF05 is an ultrasonic transmitter and receiver module used to measure distance. The sensor operation is very simple. You only need to measure the return time of ultrasonic waves in order to measure the distance. Then you should divide measured time by 2 and multiply by the sound speed. The sensor measuring range is about 2 to 400 cm. You can download the datasheet of this module here. [wpdm_package id='17336'] SRF05 Ultrasonic Module Pinout This sensor has 3 pi...

GY-21P Module Features The GY-21P module consists of two sensors, BMP280 and SI7021, which include pressure, temperature and humidity sensors. The communication protocol of this module is I2C. This module is capable of measuring air pressure from 30,000Pa to 110,000Pa, measuring humidity from 0 to 100%, measuring altitude from 0 to 30,000 feet and measuring temperature from -40 to +85 degrees Celsius. You can download the datasheet of this module here. [wpdm_package id='17363'] [wpdm_package ...

BIOVO-C3 Fingerprint Module Features BIOVO-C3 optical 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 performance and desired functions. It uses serial communication in order to communicate with microcontroller. The default Baud Rate is 57600, and it can not be changed. It can store up to 200 fingerprint samples and you can directly connect it to a computer via USB. ...

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...

US-100 Distance Sensor Features The US-100 is an ultrasonic transmitter and receiver module used to measure distance. The sensor operation is very simple. You only need to measure the return time of ultrasonic waves in order to measure the distance. Then you can divide this time by 2 and multiplied by the sound speed. The sensor measuring range is about 2 to 450 cm. Note The US-100 module has 2 different communication protocol. Method 1: use serial communication Method 2: use Trigger and Echo (similar to ...

MC-38 Magnetic Sensor Anti Theft Alarm The MC38 is a magnetic switch. When a magnet (the wireless part of the sensor) approaches it, the sensor acts like a switch and the two pins are connected.This sensor is used to detect closed or open doors, windows and alarm systems. Note Magnetic switches are available in two types, Normally Open and Normally Close. In this tutorial we use a Normally Open switch that closes as the magnet approaches the sensor (the two sensor pins are connected). ...

RCWL-0516 Microwave Radar Sensor Features The RCWL-0516 microwave radar motion detection sensor is used to detect motion at a maximum distance of 9 meters. The viewing angle of this module is about 270 degrees and it has a digital output. You can install a photocell sensor on this module. Note The RCWL-0516 module does not work properly at a distance less than 20 cm. Note This module can measure a maximum distance of 7 meters by default; but you can adjust distance by placing a resistor behind the board. No...