Day: June 3, 2020

Environment monitoring device using Arduino

Introduction Sometimes we want to know the environmental conditions in our locality. This is a simple Arduino system which displays the temperature, pressure, humidity of the location where the system is placed. Components required Arduino UNO 16X2 LCD Pressure sensor BMP180 Humidity and temperature sensor DHT22/RTH03 Breadboard Resistors – 10kΩ,1kΩ Potentiometer-10kΩ Connecting wires Block diagram …

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Interfacing temperature sensor with nodemcu

Introduction In this tutorial, we will be looking at how to interface a temperature sensor with nodeMCU and measure the temperature of the surroundings. Required Components NodeMCU Temperature Sensor LM35  Bread Board Jumper Wires Circuit Diagram  Explanation LM35 is a precession Integrated circuit Temperature sensor, whose output voltage varies, based on the temperature around it. …

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LED blinking with NodeMCU using millis function

Introduction In the previous article, we have gone through how to make an LED blink with NodeMCU using the delay function. Now, in this article, we will go through how to do the same without using the delay function i.e., using millis. So, let’s get started… Required Components NodeMCU LED Connecting wires Resistor Circuit Diagram …

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INTERFACING LED DOT MATRIX(MAX7219) WITH ARDUINO

INTRODUCTION: A dot matrix is a two-dimensional patterned array, used to represent characters, symbols, and images. Every type of modern technology uses dot matrices for the display of information, including mobile phones, televisions, and printers. A LED matrix is a large, low-resolution form of a matrix display useful for both industrial and commercial information display. …

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SOLAR INVERTER (Solar LED Driver)

COMPONENTS : SOLAR PANEL RELAY (12V) CAPACITOR DIODE RESISTOR LEDs BATTERY SWITCH ABOUT COMPONENTS: SOLAR PANEL Solar energy begins with the sun. Solar panels (also known as “PV panels”) are used to convert light from the sun, which is composed of particles of energy called “photons”, into electricity that can be used to power electrical loads. …

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LIGHT SENSITIVE HOME AUTOMATION

AIM To build a system that will turn on light automatically only when a person enters a room and the room is dark. REQUIREMENTS ARDUINO UNOHC-SR04 ULTRASONIC SENSORRELAYLIGHT SENSITIVE RESISTORBULB PROCEDURE Ultrasonic sensor senses if any person enters the room.Light sensitive resistor sense the intensity of the light in the room.If the intensity is low …

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