[SOLVED] DHT11/DHT22 – Failed to read from DHT sensor
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 …
ESP32/ESP8266 Digital Inputs and Digital Outputs with MicroPython
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 …
ESP32/ESP8266 Analog Readings with MicroPython
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 …
ESP32/ESP8266 PWM with MicroPython – Dim LED
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 …
ESP32/ESP8266 RGB LED Strip with Color Picker Web Server
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 …
MicroPython: Interrupts with ESP32 and ESP8266
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.
MicroPython: WS2812B Addressable RGB LEDs with ESP32 and ESP8266
This tutorial shows how to control WS2812B addressable RGB LEDs (neopixels) with the ESP32 and ESP8266 using MicroPython.
[SOLVED] Failed to connect to ESP32: Timed out waiting for packet header
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.
ESP32 Troubleshooting Guide
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 …
Hack a PIR Motion Sensor with an ESP8266
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.
How do RGB LEDs work?
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.
How to Use I2C LCD with ESP32 on Arduino IDE (ESP8266 compatible)
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 …
Car Plate Recognition System with Raspberry Pi and Node-RED
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 …
Flashing MicroPython Firmware with esptool.py on ESP32 and ESP8266
This post shows how to flash MicroPython firmware on ESP32/ESP8266 boards using the esptool.py. It works on Windows, Mac OS X, and Linux. For the official documentation, you can visit …