Tag Archives: Electronics

ESP8266: Interfacing with a 4×4 Matrix Keypad

The objective of this post is to explain how to use a 4×4 matrix keypad with the ESP8266. For simplicity, we will assume the use of the ESP8266 integrated in a NodeMCU board. Advertisements

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ESP8266: Controlling a relay

The objective of this post is to explain how to use the ESP8266 to control a relay.

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ESP8266: Using a rain sensor

The objective of this post is to explain how to detect rain drops using the ESP8266, external interrupts and a rain sensor.

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Electronics: Rain Sensor

The objective of this post is to describe a cheap rain sensor that can be used to detect rain with microcontrollers such as the Arduino or the ESP8266.

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Linkit Smart Duo: Blinking a LED with Python

The objective of this post is to explain how to interface with the Linkit Smart Duo hardware from Python to blink the LED of the board.

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ESP8266 Webserver: Getting query parameters

The objective of this post is to explain how to access query parameters passed in HTTP requests sent to a web server deployed in the ESP8266.

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ESP8266: Controlling a LED matrix with the 74HC595 ICs

The objective of this post is to explain how to control the LEDs of a LED matrix using 2 74HC595 ICs and a ESP8266 microcontroller.

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