Soil Moisture Sensor Tutorial for Arduino, ESP8266 and ESP32 In this tutorial we measure the soil moisture with a soil moisture sensor. Because there are two different types of sensors, we describe the functionality of each one in the first chapter. After you learn how to wire the sensor to your Arduino, ESP8266 or ESP32 … Read more
UART Tutorial for Arduino and ESP8266 In this tutorial we dive deeper into the universal asynchronous receiver-transmitter short UART. You learn the following parts: Protocol Settings Data Transmission and Framing Advantages and Disadvantages At the end of this tutorial you find a step by step example of the UART communication between an Arduino Uno and … Read more
SPI Tutorial for Arduino and ESP8266 In this tutorial we dive deeper into the Serial Peripheral Interface short SPI. You learn the following parts: Protocol Settings Data Transmission Advantages and Disadvantages At the end of this tutorial you find two examples of the SPI communication between two Arduino microcontrollers and an Arduino and an ESP8266 … Read more
Building a Menu with Buttons for your Microcontroller In this tutorial we build a menu with in total 4 buttons and 1 LCD screen for your Arduino, ESP8266 or ESP32 microcontroller to control a running program. The article is divided into two parts: Wiring of the microcontroller, buttons and LCD display to create a menu. … Read more
Visualize MQTT Data with InfluxDB and Grafana In this tutorial we follow up a first article to build a complete DIY Smart Home indoor weather station. In this second article we want to save the published messages in an InfluxDB database and create a beautiful dashboard with Grafana. This step by step tutorial is divided … Read more
Send data from ESP8266 or ESP32 to Raspberry Pi via MQTT In this tutorial we create a WiFi MQTT communication system with all components to send data from an ESP8266 or ESP32 weather station to a Rasbperry Pi. With this article you learn the basics of MQTT communication how to publish data to a MQTT … Read more
Arduino to Raspberry Pi Serial Communication In this tutorial you learn how to send data from an Arduino to a Raspberry Pi. For the communication we use an USB cable. It could be the USB cable that you use to connect the Arduino to your PC or Laptop. But in this tutorial you connect the … Read more
Raspberry Pi Headless Setup Tutorial In this tutorial you learn how to do a Raspberry Pi headless setup without a monitor, mouse or keyboard. In total there are 3 steps we have to make for the Raspberry Pi headless setup. Download and Install the Raspberry Pi OS (former Raspbian) Enable SSH and WiFi for Remote Access … Read more
PWM Tutorial for Arduino, ESP8266 and ESP32 In this tutorial you learn what Pulse Width Modulation (PWM) is and how to create different PWM signals from your Arduino, ESP8266 or ESP32 microcontroller. In two detailed example you change the brightness of an LED and control the speed of a DC motor by using the PWM … Read more
Raspberry Pi vs Arduino Comparison In this article you learn the differences between the Raspberry Pi and the Arduino and why I use both of them in my projects. The Raspberry Pi vs Arduino comparison is done in different categories: System and Operating System Connections and GPIOs Data Transfer Operating Power and Power Consumption Advantages … Read more
