Search results for: 'arduinos'

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 ...

CJMCU-0201 Double Touch Sensor Features A touch sensor is a type of switch that only has to be touched by an object to operate. Touch sensors work completely similar to a switch. This sensor has two separate pads and can be used as two separate switches. Note When this switch is subjected to touch, the output voltage will be HIGH, otherwise it is LOW. Note The output current is very low (about 40 mA). If you want to connect a higher current device to this switch, you must add a rela...

PCA9685 16 Channel 12-bit PWM Driver Features PCA9685 16-Channel module is very useful and can help a lot when there are insufficient PWM output pins. The most important application is to control servo motors. This module can control a large number of servo motors at the same time.As mentioned, the PCA9685 driver can be used to control 16 servo motors. In fact, this module only uses the I2C pins of the microcontroller. You can even connect 62 of these modules together to get up to 992 PWM outputs usi...

XKC-Y26-V Non-contact Liquid Level Sensor Features The XKC-Y26-V Non-Contact Liquid Level Sensor is a digital output sensor that detects the presence of liquid. There is an LED on the module, which will turn on if liquid is detected, otherwise it turns off. There is also a screw on the body of the module that you can use to adjust the sensitivity of the sensor. This sensor is suitable for dangerous applications such as detection of toxic substances, strong acids, strong alkalis, etc. ...

3.5 INCH Full Color Touch TFT Display Features The TFT display is a kind of liquid crystal display that is connected to each pixel using a transistor, and it features low current consumption, high-resolution and backlight. The resolution is 480x320 pixels, and it has a twelve-wire SPI Parallel interface and white backlight. The driver of this display is ILI9486. Download the datasheet of this module here.  [wpdm_package id='22183'] 3.5 INCH TFT LCD Display Pin...

Overview Suppose you want to make a 4x4x4 LED matrix. You will need 64 digital pins to control such an LED matrix. So, it would not be affordable if you decided to choose a microcontroller which has that number of digital pins. So, what is the alternative? In such cases, the most suitable way is to use a shift register to increase the number of digital pins of your microcontroller. Increasing the number of digital pins of microcontrollers is among the most attractive and practical topics. In many applicatio...

Overview Power outages are one of the main problems for computers and electrical systems. Sometimes there is data and information in your system that you do not want to be deleted with a power outage. If you do not want your data and information to be lost when the power supply is disconnected, a simple way is to save your data to EEPROM memory.In some projects, such as a 3D printer, when the system is reset, the relevant data can be stored in EEPROM memory to calibrate the equipment and initialize it. ...

XY-V17B MP3 Playback Module Features The XY-V17B SD/TF Card MP3 Playback Module stands out as a user-friendly and versatile solution for audio playback. Designed with simplicity in mind, this module is equipped with features that make it accessible for both beginners and enthusiasts alike. Its standout property lies in its compatibility with SD and TF cards, allowing users to effortlessly play MP3 files directly from these storage devices. With a straightforward interface, users can easily navigate thro...

Overview OLED Displays: A Beginner’s Guide to Display Text, Image & Animation Using Arduino. What You Will Learn How OLED displays work How to interface OLED displays by Arduino How to display any text or image on OLEDs How display simple animations OLED; What's the theory? An organic light-emitting diode (OLED) is a high-contrast and high-resolution display, making it easy for users to be readable. This kind of displays doesn’t have a ...

Overview In this tutorial, you’ll learn about the ESP8266 module, and how to control a LED with your cellphone and web page using a WIFI connection (you can replace LED with components like buzzer or relay). What You Will Learn How to use the ESP8266 module. How to control objects with this module using a WIFI connection. What is the ESP8266 Module? ESP8266 is one of the most practical mo...