In this tutorial, we will learn to use ESP32 touch pins as a wake-up source from a deep sleep. First, we will put ESP32 into deep sleep mode and then see how to wake it up using touch sensor pins. When the ESP32 is in deep sleep, it consumes very low power, making it an … Read more
In this tutorial, we will learn to use Timer as a wake-up resource from a deep sleep. First, we will put ESP32 into deep sleep mode and then see how to wake it up using a predefined time using a timer. Recommended Components The following components are used in this project or are helpful for … Read more
This tutorial will teach you how to capture and save a photo using the ESP32-CAM module onto a MicroSD card, including a timestamp as a filename with the current date and time. The image will be saved with a filename consisting of the date and time it was taken. ESP32 will get updated time from … Read more
In this tutorial, we will see how to erase the flash memory of an ESP8266 using the esptool.py command-line utility in Windows, Linux, and MacOS, and discuss why and when you might want to do this. As with any electronic device, there may be times when you need to reset the ESP8266 to its factory … Read more
In this tutorial, we will see how to erase the flash memory of an ESP32 using the esptool.py command-line utility in Windows, Linux, and MacOS, and discuss why and when you might want to do this. As with any electronic device, there may be times when you need to reset the ESP32 to its factory … Read more
In this tutorial, you will learn to send sensor readings via email with an SMTP client and MicroPython using ESP32 or ESP8266. For demonstration purposes, we will send BME280 sensor readings such as temperature, pressure, and humidity to the Gmail SMTP server but you can modify this example for any sensor and SMTP server. Recommended … Read more
In this tutorial, you will learn to send sensor readings via email with an SMTP client and MicroPython using Raspberry Pi Pico W. For demonstration purposes, we will send BME280 sensor readings such as temperature, pressure, and humidity to the Gmail SMTP server but you can modify this example for any sensor and SMTP server. … Read more
In this tutorial, you will learn to send emails with an SMTP client and MicroPython using ESP32. We will learn to send emails to SMTP servers such as Gmail, Hotmail, and Outlook. The umail is a lightweight, scalable SMTP client for sending emails in MicroPython. For demonstration, we will send a simple text message in … Read more
In this tutorial, you will learn to send emails with an SMTP client and MicroPython using Raspberry Pi Pico W. We will learn to send emails to SMTP servers such as Gmail, Hotmail, and Outlook. The umail is a lightweight, scalable SMTP client for sending emails in MicroPython. For demonstration, we will send a simple … Read more
In this user guide, we will learn how to interface a micro SD card with ESP8266 NodeMCU using the microSD card module or connector and Arduino IDE. This module provides an SPI interface to connect an SD card module with any microcontroller which supports the SPI communication interface. Using a micro SD card becomes very … Read more