Posted in ESP8266

ESP8266 NodeMCU – Simple energy meter using PZEM004T

In this tutorial we will learn how to use a circuit board with energy measurements capabilities, to acquire the most importante values of an eletrical…

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ESP8266 NodeMCU – Create a melody

This tutorial will show you how to play a melody with a passive buzzer. If you need an introduction on how to start with buzzers,…

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Posted in ESP8266

ESP8266 NodeMCU – Make some noise with buzzers

Introduction This tutorial will show you how to make noise with both an active and a passive buzzer. If you need an introduction on how…

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Posted in Arduino

Arduino UNO – Ultrasonic Sensor HC-SR04

In this tutorial I am going to show you how to use an Ultrasonic Sensor (HC-SR04) with Arduino UNO. You can use any Arduino Board.HC-SR04…

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Posted in ESP8266

ESP8266 NodeMCU – Fingerprint Optical Sensor (JM-101)

In this tutorial I am going to show how you can use JM-101 fingerprint optical sensor with ES8266 NodeMCU. Parts Required ESP8266 NodeMCU v1.0 Micro-USB…

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ESP8266 NodeMCU – Turn ON/OFF a Light Bulb

In this tutorial I will show you how to turn ON and OFF a light bulb using the previous tutorial “ESP8266 NodeMCU – Blinking a…

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Posted in Arduino

Arduino Mega – Blinking a LED

In this tutorial I am going to show you how to blink a LED using Arduino Mega 2560. You can use any Arduino Board.If you…

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Posted in ESP8266

ESP8266 NodeMCU – Blinking a LED

In this tutorial I am going to show you how to blink a LED using ESP8266 NodeMCU development board (version 1.0 in this case). Parts…

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