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MT8870 DTMF Decoder Module Features DTMF stands for Dual-tone-multi-frequency. This module is for sending signals using the voice-frequency band over telephone lines to switching centers. This module has two important applications: First, to specify the desired number to telecommunication through switching centers; second, it is capable of transmitting commands to these centers and other telecommunication devices. Technical specifications: Input voltage: 5V 5mm input jack LED to indicate the binary ...

Photoelectric Encoder Module Features Motors are used in a wide variety of applications such as robotics, industry, research and educational projects. In most of these applications, it is necessary to calculate the rotation speed, the direction of rotation and the position of the motor shaft. Rotary encoder modules can be used for this purpose. Rotary encoder is a type of module that converts rotation into electrical signals. The rotary encoder has two output pins: A and B. If the rotary encoder i...

DX-BT18 Bluetooth Module Features Bluetooth modules are a type of wireless communication modules that can be added to a project through serial or SPI communication protocols.The advantage of using Bluetooth modules is that they are easy to set up and use.The DX-BT18 module uses serial protocol for communication. Note All Bluetooth modules that use serial communication protocol support AT Commands, which are listed in the datasheet of each product. Download th...

Overview Have you ever wanted to use 2 sensors with the same I2C address at the same time, not knowing what to do? Faced some serious challenges in doing that? In a lot of projects, we have used different modules and sensors that support I2C communication protocol. Sometimes, we have interfaced some I2C modules with a microcontroller in our projects. If they all have different I2C addresses, we could easily interface them, facing no serious trouble. But, if 2 or more of the modules had the same I2C address...

Overview Nowadays, ESP32 Board have been so popular due to the very attractive features and capabilities they offer, as well as their very low price. This microcontroller is also so easy to program. The programming can be done in so many different development environments, such as Lua programming language, Arduino IDE, MicroPython, ESP-IDF, etc. Among all these programming environments, Arduino IDE is a pretty good option to start working with the ESP32 boards, since it is open source and better known c...

Are you looking to burn a bootloader and program AVR microcontrollers easily and efficiently? In this tutorial, we will guide you through the process using an Arduino Uno board and the Arduino IDE software. By utilizing the In-circuit Serial Programmer (ISP) feature of an Arduino Board, you can quickly install the bootloader and program various AVR microcontrollers. Overview There has definitely been times that:Your microcontroller IC has been burntOr you have obtained a new microcontroller and are...

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...

Introduction Are you looking to enhance your smart and security systems? Want to create projects that detect motion and automate your home? Look no further!  Introducing the HW-MS03 motion detection module, a powerful radar sensor that can revolutionize your projects. Whether you want to secure your premises, automate lighting systems, or develop cutting-edge applications, this module is your key to unlocking endless possibilities.The basic task of these sensors, as you can guess by their name, is to ...

Overview There are two main ways to program the STM32F103C8T6 module, also known as the STM32 Blue Pill: • Serial and USB to TTL converter • ST-Link Tip Sometimes you might find out that the STM32 module you have is not original. And it can’t be programmed through serial. Therefore, we suggest you use ST-Link to program the STM32 Blue Pill. Required Materials Hardware Components STM32F103C8T6 Blue Pill × 1 ST-Link/V2 Programmer × 1 Male to Male Jumper Wire × 1 Software Apps Ar...

Introduction Sometimes you cannot find the desired library in the internal library of Platform-IO. In this case, you have to manually add the library to your project. In this tutorial, we will cover how to manually add a library to Platform-IO step by step. Installing New Library in PlatformIO, Step 1: Library Download First, download the desired library. Installing New Library in PlatformIO, Step 2: Finding Library Location Using ...