Search results for: 'arduino'

Overview The multimeter is an indispensable tool for any electronics project, as it helps overcome countless challenges during project completion. This article will demonstrate how to create a cost-effective digital multimeter using an Arduino board and an OLED display. This multimeter is capable of measuring voltage, current, resistance, and capacitance. Upon completing the project, you will have your own multimeter at the lowest possible cost. What You Will Learn Underst...

Overview Many electronic projects require serial communication to communicate with some sensors or modules, or to connect two microcontrollers together, or even to connect a microcontroller to a computer.In this tutorial, we are going to review the serial protocol in the STM32 microcontroller series. If you are unfamiliar with these microcontrollers, refer to "Getting Started with STM32F103C8T6". What you will learn Get to know with serial protocol ...

Buzzer Features A buzzer is a device used to produce sound. There are two types of buzzer: active and passive. In the active model, buzzer starts playing sound only if connected to a power supply, but in the passive model, we need to send a pulse from the microcontroller to play sounds. The supply voltage of the buzzer is 3 volts, 5 volts and 12 volts. You can download the passive buzzer datasheet here. [wpdm_package id='16469'] Passive Buzzer Module Pinout Buzzer has 2 pins: DATA and GND but t...

ACS712 Current Module Features ACS712 chip is used to measuer DC/AC current based on the Hall effect. This chip is produced in 3 models with different maximum currents. Different models and output sensitivity of each model are shown in the table below: Sensor sensitivity means that, for example, if you use 5 amp model, as input current increase 1 amp, the output voltage of the sensor increases about 185 mV. Note When input is not connected to something and th...

Discover the capabilities of the ZMPT101B voltage sensor and learn how to interface it with Arduino for precise AC voltage measurement. This voltage transformer module allows you to measure AC voltages up to 250 volts with analog output. As the input voltage changes, the output voltage of the sensor adjusts accordingly. What is ZMPT101B Voltage Sensor? The ZMPT101B is a voltage transformer used to measure AC voltage. You can measure AC voltages up to 250 volts by using this module. The output of th...

DS18B20 Temperature Sensor Features The DS18B20 is a temperature sensor that can measure temperature in the range of -55°C to + 125°C with an accuracy of 0.5 ° C. The output accuracy of this sensor is adjustable from 9 to 12 bits which is set to 12 bits by default. The communication protocol of the this sensor is single-wire, and to measure the ambient temperature  you only need to connect one wire to Arduino. Note One of the biggest advantages of this sensor is its one-wire communication protocol....

DFPlayer MP3 Player Features The DFPlayer module music player that can use both Serial and MicroSD to play an audio. This module can support up to 32 GB MicroSD with FAT16 and FAT32 formats. It also has an internal amplifier. Note Do not forget to connect the VCC and the GND of the module to 5V and GND of Arduino. You can download the DFPlayer module datasheet here.  [wpdm_package id='16855'] DFPlayer Module Pinout This module has 16 pins: VCC: Module power supply - 5 V GND: Grou...

DS18B20 Temperature Module Features DS18B20 module is a temperature sensor that can measure temperature in the range of -55°C to + 125°C with an accuracy of 0.5 ° C. The output accuracy of this sensor is adjustable from 9 to 12 bits which is set to 12 bits by default. The communication protocol of this sensor is one-wire, and to measure the ambient temperature you only need to connect one wire to Arduino. Using this module is quite similar to the DS18B20 Sensor since it based on that component. Note One...

Photoresistor Sensor Features Photoresistor is a kind of resistor that is sensitive to light. The resistance value changes by change of light intensity. As the ambient light increases, the photoresistor resistance decreases and with decreasing light, the resistance increases. The output characteristic of this sensor is nonlinear. You can download the datasheet of this module here. [wpdm_package id='17061'] LDR Photoresistor Sensor Pinout This module has 2 pins: VCC: Sensor’s power supply - 5V...

TSL2561 Sensor Features The TSL2561 Luminosity Sensor Breakout is a complex light sensor which has a flat response across most of the visible spectrum range. This sensor is capable of direct I2C communication and is able to conduct specific light ranges from 0.1 - 40k+ Lux easily. You can download the datasheet of this module here. [wpdm_package id='17101'] TSL2561 Sensor Pinout This module has 2 pins: VCC: Module power supply - 5V GND: Ground  SLC: I2C clock  SDA: I2C ...