ESP32 Plot Sensor Readings in Charts (Multiple Series)
This project shows how to build a web server with the ESP32 to plot sensor readings in charts with multiple series. As an example, we’ll plot sensor readings from four …
ESP32 Projects
ESP32 Setting a Custom Hostname (Arduino IDE)
By default, the hostname of the ESP32 is espressif. In this guide, you’ll learn how to set a custom hostname for your board. To set a custom hostname for your …
ESP32 Neopixel Status Indicator and Sensor PCB Shield with Wi-Fi Manager
In this project, we’ll create a status indicator PCB shield for the ESP32 featuring two rows of addressable RGB neopixel LEDs, a BME280 sensor, and a pushbutton. We’ll program the …
ESP32 OTA (Over-the-Air) Updates – AsyncElegantOTA (VS Code + PlatformIO)
In this guide, you’ll learn how to do over-the-air (OTA) updates to your ESP32 boards using the AsyncElegantOTA library and VS Code with PlatformIO. The Async Elegant OTA library creates …
ESP32: Guide for MicroSD Card Module using Arduino IDE
This guide shows how to use a microSD card with the ESP32: you’ll learn how to read and write files to the microSD card. To interface the microSD card with …
ESP32 OTA (Over-the-Air) Updates – AsyncElegantOTA using Arduino IDE
In this guide, you’ll learn how to do over-the-air (OTA) updates to your ESP32 boards using the AsyncElegantOTA library. This library creates a web server that allows you to upload …
ESP32 Save Data Permanently using Preferences Library
This guide shows how to save data permanently on the ESP32 flash memory using the Preferences.h library. The data held in the flash memory persists across resets or power failures. …
ESP32 Web Server Hosting Files from MicroSD Card
In this tutorial, you’ll learn how to build an ESP32 web server to serve files from a microSD card using a microSD card module that communicates using SPI protocol. You’ll …
ESP32 Useful Wi-Fi Library Functions (Arduino IDE)
This article is a compilation of useful Wi-Fi functions for the ESP32. We’ll cover the following topics: scan Wi-Fi networks, connect to a Wi-Fi network, get Wi-Fi connection strength, check …
[SOLVED] Reconnect ESP32 to Wi-Fi Network After Lost Connection
This quick guide shows how you can reconnect your ESP32 to a Wi-Fi network after losing the connection. This can be useful in the following scenarios: the ESP32 temporarily loses …
Get Epoch/Unix Time with the ESP32 (Arduino)
This quick guide shows how to get epoch/unix time using the ESP32 board with Arduino IDE. Getting the epoch time can be useful to timestamp your readings, give unique names …
ESP32 Web Server with MPU-6050 Accelerometer and Gyroscope (3D object representation)
In this project we’ll build a web server with the ESP32 to display readings from the MPU-6050 accelerometer and gyroscope sensor. We’ll also create a 3D representation of the sensor …
ESP32 with MPU-6050 Accelerometer, Gyroscope and Temperature Sensor (Arduino)
In this guide you’ll learn how to use the MPU-6050 accelerometer and gyroscope module with the ESP32. The MPU-6050 IMU (Inertial Measurement Unit) is a 3-axis accelerometer and 3-axis gyroscope …
ESP32 with VS Code and PlatformIO: Upload Files to Filesystem (SPIFFS)
Learn how to upload files to the ESP32 board filesystem (SPIFFS) using VS Code with the PlatformIO IDE extension (quick and easy). Using the filesystem with the ESP32 can be …