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ESP32 (30) – HTTP server in SoftAP mode
One of the most frequent questions I receive from my website’s contact form or from my Facebook page is whether it’s possible to publish an HTTP server when the esp32 chip is working in SoftAP mode, that is
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ESP32 (29) – Deep sleep
One of the major concerns for embedded devices is the power consumption. If the device you’re designing will be battery powered, it’s indeed important to reduce as much as possible its power consumption to maximize the
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ESP32lights
Today’s project, ESP32lights, is a smart device based on the esp32 chip. Thanks to ESP32lights you can turn a load on and off (I used it for my christmas lights) ESP32lights connects to your
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ESP32 (28) – MQTT and SSL
Security is a very important aspect for MQTT brokers. In a previous article you’ve already learned how to implement authentication and authorization. The weakness in that configuration was that credentials were transmitted in cleartext; it was therefore
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4zerobox, industrial module by italian startup with ESP32 heart
With great pleasure, I want to introduce you today the project of an Italian startup: 4zerobox. 4zerobox is a module, DIN-rail mountable (9 modules), designed to complement or replace a classic PLC in industrial automation applications.
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ESP32, the new Wemos Lolin32 LITE
On my blog I’ve already posted about the development board Wemos designed for the esp32 chip and that, on many webstores, you can find boards that “copy” the Lolin32 name but are instead clones of
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ESP32 (27) – GPS
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
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
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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ESP32 (24) – I2C a pratical example with HTU21D sensor
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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