Tutorial

BNO055 for esp32, esp8266 and Arduino: enable INT pin and accelerometer High G Interrupt

Accelerometer / Arduino / Bosch BNO055 absolute position sensor tutorial / esp32 / esp8266 / Gyroscope / i2c / Magnetometer (Triaxial magnetic field) / No category / SPI

19 March 2023

BNO055 for esp32, esp8266 and Arduino: enable INT pin and accelerometer High G Interrupt – 5

Continue the series of article about the Bosch sensor BNO055. In this part of the tutorial, we will learn how to enable the INT pin of the BNO055 and configure the accelerometer High G Interrupt. The High G Interrupt is triggered when the accelerometer detects a sudden acceleration event that exceeds a specified threshold and duration. This can be useful for detecting impacts, falls, or other sudden movements in a variety of applications.

ESP32 self OTA: update firmware from server

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esp32 / ESP32 firmware management tutorial / Firmware

16 March 2023

ESP32 self OTA update firmware from server – 1

This article discusses how the ESP32 can perform self-OTA updates of its firmware from a server, allowing you to remotely update the firmware of an ESP32-based device without having to physically access the device. To do this, you need to set up a server that hosts the new firmware image and add OTA support to your ESP32 firmware. By implementing self-OTA updates, you can ensure your devices are running the latest firmware without having to physically access them.

ESP32 OTA update with Web Browser: custom web interface

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esp32 / ESP32 firmware management tutorial / Firmware

7 March 2023

ESP32 OTA update with Web Browser: custom web interface – 3

This tutorial explores how to implement OTA updates on an ESP32 using a web browser as a custom interface. We will create a custom web interface using HTML and JavaScript to upload firmware files to the ESP32, and then use the ESP32’s OTA update feature to install the new firmware. By the end of this tutorial, you should have a solid understanding of how to use OTA updates to keep your ESP32 devices up-to-date with the latest firmware.

ESP32 OTA update with Web Browser: HTTPS (SSL/TLS) and self signed certificate

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esp32 / ESP32 firmware management tutorial / Firmware / OTA Update / WiFi

3 March 2023

ESP32 OTA update with Web Browser: upload in HTTPS (SSL/TLS) with self-signed certificate – 2

In this article, we will explore how to perform OTA updates on the ESP32 using a web browser and HTTPS protocol with a self-signed certificate. HTTPS provides a secure way to transfer data over the internet and is essential for any OTA update process that involves sensitive information. A self-signed certificate can be used to provide encryption and authentication without the need for a third-party certificate authority, making it a cost-effective solution for small-scale projects. By the end of this article, you will have a working OTA update process for your ESP32 project that uses HTTPS protocol and a self-signed certificate.

ESP32 OTA update with Web Browser: firmware, filesystem, and authentication

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esp32 / ESP32 firmware management tutorial / Firmware

28 February 2023

ESP32 OTA update with Web Browser: firmware, filesystem and authentication – 1

In this article series, we will explore how to perform an OTA update on the ESP32 microcontroller using a web browser with and without basic authentication. We will cover firmware update, filesystem update, and authentication, providing practical examples and code snippets along the way.

ESP32 OTA update with Arduino IDE: filesystem, firmware and password

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esp32 / ESP32 firmware management tutorial / OTA Update

22 February 2023

ESP32 OTA update with Arduino IDE: filesystem, firmware, and password

One of the most important features of the ESP32 is the ability to perform over-the-air (OTA) updates, which allows developers to remotely update the firmware of the device without the need for physical access.

In this article, we will explore how to perform an OTA update on an ESP32 using the Arduino IDE. We will cover the entire process, including updating the filesystem and firmware, as well as securing the OTA update with a password.

ESP32: compiled binary (.hex) with command line and GUI tool

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esp32 / ESP32 firmware management tutorial / Firmware

15 February 2023

ESP32: flash compiled firmware and filesystem (.bin) with GUI tools – 2

The ESP32 boasts a crucial capability that streamlines the sharing of firmware, which most manufacturers widely utilize. This capability involves creating a pre-compiled binary file containing the sketch portion (or filesystem). In this article, we will create a binary file for the filesystem and proceed to flash the ESP32 using the Espressif Download Tool.

ESP32: compiled binary (.hex) with command line

0

esp32 / ESP32 firmware management tutorial / Firmware

7 February 2023

ESP32: flash compiled firmware (.bin) – 1

An essential feature of ESP32 core that simplifies the sharing of firmware (and most manufacturers use it) is to generate a pre-compiled binary file with only the sketch part (or filesystem).
In this article we will generate a firmware binary from the command line.

Raspberry Pi Pico W rp2040 how to use SD card

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How to use SD cards / rp2040 / SD Card / Tutorial Raspberry Pi Pico W and generic rp2040

25 January 2023

Raspberry Pi Pico and rp2040 boards: how to use SD card – 5

We have already talked about the internal flash memories for rp2040 boards and other microcontrollers, which are very useful for storing pages or static files. However, they are not suitable for logging or similar applications, so we will learn how to connect and use an SD card which can have a lot of space, a very small form factor, and low power consumption.