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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 0

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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ESP32 (21) – Mutual authentication

ESP32 (21) – Mutual authentication

luca August 25, 2017 0

After having published my post about how to implement a webserver on the esp32 chip, some readers correctly warned me that everyone, once connected to the wifi network, could control the relay and asked me how

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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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ESP32 (20) – Webserver

ESP32 (20) – Webserver

luca July 8, 2017 10

One of the most popular projects among the ones included in my tutorial about the enc28j60 chip is fore sure WebRelay. This project allows to control an output pin of Arduino using a simple web page, designed

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ESP32 (19) – NVS

ESP32 (19) – NVS

luca June 3, 2017 6

In today’s tutorial you’ll learn how to permanently store information, so that they are preserved even if the esp32 chip is reset or power is removed. NVS NVS (Non Volatile Storage) is a library included in the

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ESP32 (18) – Access Point

ESP32 (18) – Access Point

luca May 20, 2017 8

In all the examples so far, we used the esp32 chip in STAtion Mode, that is as a client which connects to an existing wifi network. In a previous article I explained in details how the different

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ESP32 (17) – SNTP

ESP32 (17) – SNTP

luca May 11, 2017 2

In embedded applications it’s often necessary a clock, as accurate as possible. For example, imagine a device that has to activate an output at a given time or a logger that has to store

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ESP32 (16) – IFTTT

ESP32 (16) – IFTTT

luca May 7, 2017 0

After having published my tutorial about sending SMS with the ESP32, I received some comments via the contact form of my website asking a way to send notifications for free. Today I’ll show you

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