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ESP32 (27) – GPS

ESP32 (27) – GPS

luca November 13, 2017 4

In today’s post I’ll show you how to interface the esp32 chip to a GPS receiver to receive the actual position, speed and more… GPS receiver On the Internet and in electronic stores you can

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ESP32 (26) – UART

ESP32 (26) – UART

luca November 6, 2017 0

UART (Universal Asynchronous Receiver-Transmitter) is an hardware peripheral which allows serial, asynchronous communication with configurable data format and speed. The UART interface usually works at logic level: the electric signals are generated by an external

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ESP32 (25) – Oled display with U8G2

ESP32 (25) – Oled display with U8G2

luca October 30, 2017 0

If you read my post ESP32, Wemos or not to Wemos you know that I brought a development board, that happened to be a D-duino-32 clone, with an ESP-WROOM-32 module and a 0.96″ oled display. This display, available also as a

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A Certificate Authority with OpenSSL

A Certificate Authority with OpenSSL

luca October 26, 2017 0

The security of several protocols is implemented using SSL certificates. Usually, those certificates are created by public certificate authorities. If we’re connecting to a website (HTTPS protocol), the browser we’re using must recognize the identity

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ESP32 (24) – I2C a pratical example with HTU21D sensor

ESP32 (24) – I2C a pratical example with HTU21D sensor

luca October 13, 2017 0

In my previous tutorial I explained how to use the I2C driver included in the esp-idf framework to communicate with I2C devices. Today I’ll show you a pratical example: the use of a temperature/humidity

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ESP32 (23) – I2C basic

ESP32 (23) – I2C basic

luca October 9, 2017 2

In today’s tutorial I’ll explain you how to interface the esp32 chip to external devices (sensors, displays…) using a very widespread bus: the I2C bus. I2C I2C (pronounced i-squared-c) is a serial communication bus –

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ESP32 (22) – SPIFFS

ESP32 (22) – SPIFFS

luca September 30, 2017 4

In some of the previous tutorials, I explained how to include “external” items (images, SSL certificates…) in your program thanks to the embedding binary data feature of the esp framework. Today I’ll show you how to use part

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RFID and Arduino (1)

RFID and Arduino (1)

luca September 4, 2017 2

In this tutorial, divided in two posts, I’ll show you how to use RFID (Radio-frequency Identification) tags with Arduino. In the first part you’ll learn how to connect the reader to your Arduino and how to write a

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ESP32, Wemos or not to Wemos

ESP32, Wemos or not to Wemos

luca July 22, 2017 2

Wemos is a chinese manufacturer of IoT products, well known for its D1 Mini family, that includes boards based on the ESP-8266EX chip and expansion shields. Some weeks ago, Wemos announced a board based on the new ESP32 chip,

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STM32 and Arduino

STM32 and Arduino

luca July 13, 2017 10

STM32 is a family of 32bit microcontrollers manufactured by STMicroelectronics and based on the ARM Cortex M core. The STM32 family is divided into different lines of microcontrollers (L0-1-4, F0-1-2…) depending on their features and the use they are

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