ESP32: Wake-Up From Deep Sleep using External Alarms (DS3231 RTC)
In this tutorial, you’ll learn how to wake up the ESP32 from deep sleep using an external scheduled alarm. The DS3231 RTC module will trigger an alarm at a specified …
ESP32
ESP32: Guide for DS3231 Real Time Clock Module (RTC) — Getting Time and Setting Alarms
This tutorial is a getting-started guide for the DS3231 Real Time Clock Module with the ESP32. The DS3231 RTC module is a great module for accurate timekeeping, it also allows …
ESP32 TFT with LVGL: Display Temperature on Line Chart (BME280)
In this guide, you’ll learn how to display temperature from the BME280 sensor on an ESP32 and a TFT display using LVGL (Light Versatile Graphics Library). You’ll learn how to …
ESP32 CYD with LVGL: Display Temperature on Line Chart (BME280)
In this guide, you’ll learn how to display temperature from the BME280 sensor on an ESP32 Cheap Yellow Display (CYD) using LVGL (Light Versatile Graphics Library). You’ll learn how to …
Getting Started with LILYGO TTGO T-A7670G ESP32 (4G, GPRS, and GPS)
Get started with the ESP32 and the T-A7670G 4G/GPS/GPRS module. Throughout this guide, we’ll use the LILYGO TTGO T-A7670G ESP32 board that combines the ESP32 chip, the A7670G (or A7670E, …
ESP32 RFID User Management System with Web Server
In this project, you’ll build an RFID user management system with a web server that runs on an ESP32. The ESP32 board is connected to an MFRC522 RFID reader and …
ESP32: Guide for DS1307 Real Time Clock (RTC) Module (Arduino IDE)
Learn how to use the DS1307 Real Time Clock Module with the ESP32. We’ll cover how to set and read the time. You’ll learn to synchronize the time with the …
ESP32 with MFRC522 RFID Reader/Writer (Arduino IDE)
Learn how to interface the MFRC522 RFID reader module with the ESP32 board. You’ll learn how to get raw RFID data, get the RFID card UID, and add personal data …
ESP32 OTA (Over-the-Air) Updates – ElegantOTA Library with Arduino IDE
This tutorial shows how to do OTA (over-the-air) updates to your ESP32 boards using the ElegantOTA library (V3 version) with Arduino IDE. This library sets up a web server that …
ESP32 TFT with LVGL: Display GPS Location, Date, and Time
In this guide, you’ll learn how to turn your ESP32 and a TFT display into a GPS reader that displays the current location, altitude, speed, date, and time using LVGL …
ESP32 CYD with LVGL: Display GPS Location, Date, and Time
In this project, you’ll learn how to turn your ESP32 Cheap Yellow Display (CYD) board into a GPS reader that displays the current location, altitude, speed, date, and time using …
ESP32 with an Anemometer: Measure Wind Speed (Arduino IDE)
In this guide, you’ll learn how to interface an anemometer with the ESP32 to measure wind speed. We’ll cover how to power and connect the sensor to the ESP32 board, …
ESP32 UART Communication (Serial): Set Pins, Interfaces, Send and Receive Data (Arduino IDE)
This is a simple guide about UART serial communication protocol with the ESP32 using Arduino IDE. We’ll take a look at the basics of UART, default and custom UART pins, …
ESP32 TFT with LVGL: Display BME280 Sensor Data on a Table
In this guide, you’ll learn how to create a responsive table using LVGL with an ESP32 and a TFT display. We’ll display temperature, humidity, and pressure from the BME280 sensor, …