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 …
Search Results for: esp8266
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 …
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. …
ESP32 Door Status Monitor with Telegram Notifications
In this project, you’re going to monitor the status of a door using an ESP32 board and a magnetic reed switch. You’ll receive a message in your Telegram account whenever the door changes …
ESP32 Web Server: Control Stepper Motor (WebSocket)
In this guide you’ll learn how to create a web server with the ESP32 that displays a web page to control a stepper motor. The web page allows you to …
ESP32 Web Server: Control Stepper Motor (HTML Form)
In this tutorial, you’ll learn how to create a web server with the ESP32 to control a stepper motor remotely. The web server displays a web page with an HTML …
ESP32 Door Status Monitor with Email Notifications (IFTTT)
In this project, you’re going to monitor the status of a door using an ESP32 board and a magnetic reed switch. You’ll receive an email notification whenever the door changes state: opened or …
ESP32 with Stepper Motor (28BYJ-48 and ULN2003 Motor Driver)
In this guide, you’ll learn how to control a stepper motor with the ESP32. We’ll use the 28BYJ-48 unipolar stepper motor with the ULN2003 motor driver. The ESP32 board will …
ESP32 WebSerial: Web-based Remote Serial Monitor
In this guide, you’ll learn how to create and use a web-based “Serial Monitor” for your ESP32 projects using the WebSerial library. This creates a web-based interface to output debugging …
Altimeter Datalogger: ESP32 with BMP388, MicroSD Card Storage and OLED Display
In this project, we’ll build an altimeter datalogger with the ESP32 and the BMP388 sensor. The BMP388 is a precise pressure sensor that allows us to estimate altitude with great …