ESP32 with BH1750 Ambient Light Sensor
The BH1750 is a 16-bit ambient light sensor. In this guide, you’ll learn how to use the BH1750 ambient light sensor with the ESP32 board using Arduino IDE. The sensor …
Getting Started with Thonny MicroPython (Python) IDE for ESP32 and ESP8266
If you want to program your ESP32 and ESP8266 with MicroPython firmware, it’s very handy to use an IDE. In this guide, we’ll introduce you to Thonny IDE. After completing this …
MicroPython IDEs for ESP32 and ESP8266
This article shows a list of IDEs compatible with MicroPython that you can use to program your ESP32 and ESP8266 boards. Do you want to start learning MicroPython, but you …
MicroPython: Program ESP32/ESP8266 using Mu Editor
In this guide, you’ll learn how to use Mu Editor software to program your ESP32 and ESP8266 boards using MicroPython. Mu Editor is a simple Python editor for beginner programmers …
ESP8266 NodeMCU: Create a Wi-Fi Manager (AsyncWebServer library)
In this guide, you’ll create and set up a Wi-Fi Manager with the ESPAsyncWebServer library that you can modify to use with your web server projects or with any project …
[SOLVED] Could not find a valid BME280 sensor, check wiring!
This is a troubleshooting guide for the BME280 temperature, humidity, and pressure sensor when using ESP32, ESP8266, Arduino, or similar boards. If you get an error message in your Serial …
Year in Review 2021 – Random Nerd Tutorials
We’re reaching the end of 2021. As usual, at the end of the year, we share a summary of what happened throughout the current year on the Random Nerd Tutorials …
ESP32: Create a Wi-Fi Manager (AsyncWebServer library)
In this guide, you’ll create and set up a Wi-Fi Manager with the ESPAsyncWebServer library that you can modify to use with your web server projects or with any project …
What is MQTT and How It Works
In this article, we’re going to introduce you to the MQTT protocol. MQTT stands for Message Queuing Telemetry Transport.
Testing Mosquitto Broker and Client on Raspberry Pi
In this tutorial, you’re going to test the Mosquitto MQTT Broker and MQTT Client on a Raspberry Pi. You’ll subscribe the MQTT client to an MQTT topic and publish sample messages. …
ESP32 NTP Time – Setting Up Timezones and Daylight Saving Time
In this tutorial, you’ll learn how to properly get the time with the ESP32 for your timezone and consider daylight saving time (if that’s the case). The ESP32 will request …
ESP8266 NodeMCU Web Server: Display Sensor Readings in Gauges
Learn how to build a web server with the ESP8266 NodeMCU to display sensor readings in gauges. As an example, we’ll display temperature and humidity from a BME280 sensor in …
ESP32 Web Server: Display Sensor Readings in Gauges
Learn how to build a web server with the ESP32 to display sensor readings in gauges. As an example, we’ll display temperature and humidity from a BME280 sensor in two …
ESP32 BLE Server and Client (Bluetooth Low Energy)
Learn how to make a BLE (Bluetooth Low Energy) connection between two ESP32 boards. One ESP32 is going to be the server, and the other ESP32 will be the client. …