This tutorial shows how to use the DHT11 or DHT22 temperature and humidity sensors with the ESP32 and ESP8266 development boards using MicroPython firmware. DHT Module Usage There is a …
This is a troubleshooting guide for the most common issues with the DHT sensor when using ESP32, ESP8266, Arduino, or similar boards. If you get an error message in your …
This tutorial shows how to control the ESP32 and ESP8266 GPIOs as digital inputs and digital outputs using MicroPython firmware. As an example, you’ll learn how to read the value …
This tutorial shows how to read analog values with the ESP32 and ESP8266 boards using MicroPython firmware. As an example, we’ll read the values from a potentiometer. Getting analog readings …
This tutorial shows how to generate PWM signals with the ESP32 and ESP8266 boards using MicroPython firmware. As an example, we’ll dim the brightness of an LED by changing the …
In this project we’ll show you how to remotely control an RGB LED strip with an ESP8266 or an ESP32 board using a web server with a color picker. We’ll …
Learn how to configure and handle interrupts using MicroPython firmware with ESP32 and ESP8266 boards. You’ll also build a project example with a PIR Motion Sensor.
This tutorial shows how to control WS2812B addressable RGB LEDs (neopixels) with the ESP32 and ESP8266 using MicroPython.
Learn how to fix the: “Failed to connect to ESP32: Timed out waiting for packet header” error when trying to upload new code to your ESP32 board once for all.
The ESP32 has a few common problems, specially when you are trying to upload new sketches or install the ESP32 add-on on the Arduino IDE. This guide is dedicated to the ESP32 …
In this project we’ll modify a commercial motion sensor (powered with mains voltage) with an ESP8266 to log data whenever motion is detected. The data will be sent to Node-RED using MQTT communication protocol.
With an RGB LED you can produce almost any color. How is this possible with just one single LED? In this article you’ll learn how RGB LEDs work and how to control an RGB LED with Arduino.
This tutorial shows how to use the I2C LCD (Liquid Crystal Display) with the ESP32 using Arduino IDE. We’ll show you how to wire the display, install the library and …
In this project you’re going to learn how to build a car recognition system using a Raspberry Pi and Node-RED. For this project we’ll be using a software called OpenALPR …