In this tutorial, we will learn to use TCA9548A I2C multiplexer with Arduino. We will discuss how to use multiple I2C devices with Arduino having the same address by incorporating a hardware solution. By using a TCA9548A I2C Multiplexer, we will be able to increase the I2C addresses range of Arduino and able to connect … Read more
In this tutorial, we will show you how to subscribe to ROS topics using Arduino rosserial. We will see how to set up a ROS node on Arduino that we will receive data on a specific topic from ROS. In a previous tutorial, we introduced you to ROS and how to set it up with … Read more
In this tutorial, we will show you how to use rosserial with Arduino IDE and ROS (Robotic Operating System) and how to setup a ROS node on Arduino. Rosserial Arduino is a middleware software framework that combines with Arduino to build intelligent robotic models. We will use Arduino 1.8.19 with ROS Melodic in Ubuntu 64 … Read more
In this tutorial, we will learn to make HTTPS requests with ESP32 (Hypertext Transfer Protocol Secure). We will briefly introduce you to HTTPS, SSL/TLS Certificates, how to obtain a server’s certificate and then finally program our ESP32 board to make HTTPS requests. We will show you two library examples for generating in Arduino IDE. These … Read more
In this tutorial, we will introduce you to Twilio with ESP32 to send text messages. Twilio is a communications web service that allows users to make and receive phone calls and SMS along with other communication functions. Although Twilio is not free to use but you can get started with a free trial account as … Read more
In this tutorial, we will learn about ESP32 I2C communication protocol using different I2C devices having same and different addresses. We will discuss how to use multiple I2C devices with ESP32 having the same address by incorporating a hardware solution. By using a TCA9548A I2C Multiplexer, we will be able to increase the I2C addresses … Read more
In this tutorial, we will learn how to program STM32 Blue Pill through USB port by uploading Bootloader to the board. It is a step by step guide which will help you to install STM32 Bootloader and then program your Blue Pill through the micro USB port using Arduino IDE. Recommended Components The following components … Read more
In this user guide we will learn to interface RCWL-0516 microwave radar sensor module with ESP8266 NodeMCU and program it in Arduino IDE for motion detection. We will discuss the components of RCWL-0516 sensor module, pinout, configuration, features, specifications, interfacing, 2D model, and applications. We have similar guides with Arduino and ESP32: Recommended Components The … Read more
In this tutorial, we will learn to interface the 0-25V DC voltage sensor module with Arduino and program it for voltage measurement. This guide includes an introduction to the voltage sensor module, its pinout, connection with Arduino and then programming our Arduino with the sensor to display the measured voltage readings on an OLED. Recommended … Read more
In this user guide we will learn to interface RCWL-0516 microwave radar sensor module with ESP32 using Arduino IDE and create an example for motion detection. We will discuss the components of RCWL-0516 sensor module, pinout, configuration, features, specifications, interfacing, 2D model, and applications. We have similar guides with Arduino and ESP8266 NodeMCU: Recommended Components … Read more