ESP32-CAM QR Code Reader/Scanner (Arduino IDE)
Learn how to build a QR code reader/scanner with the ESP32-CAM board programmed with Arduino IDE. The ESP32-CAM is constantly using its camera to scan for new QR codes using …
ESP32
ESP32 Light Sleep Mode and Wake-Up Sources (Arduino IDE)
Light Sleep is one of the power-saving modes supported by the ESP32. In this guide, we’ll look at how to implement the Light Sleep mode with the ESP32 and the …
ESP32/ESP8266: Run Daily Task at Specific Time (Arduino IDE)
In this guide, we’ll show you how to get date and time using the ESP32 or ESP8266 to run one or multiple tasks every day at an exact time. For …
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: 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 …