Projects

Building a simple digital light meter using Arduino and BH1750FVI sensor

Building a simple digital light meter using Arduino and BH1750FVI sensor

Sensor – Transducer – Detector Projects / By

A light meter is a device that measures the intensity of light. It finds applications in schools, hospitals, production areas, passageways and more to measure and maintain proper lighting levels. It is often used by photographers to determine the proper exposure for a photograph. Today we are going to build a simple light meter using […]

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Arduino MCP9802

MCP9802 temperature sensor and Arduino

Sensor – Transducer – Detector Projects / By

MCP9802 is a digital temperature sensor from Microchip that measures temperatures between -55°C and +125°C to a digital word. It provides an accuracy of ±1°C (maximum) from -10°C to +85°C. The MCP9802 sensor comes with user-programmable registers that provide flexibility for temperature sensing applications. The register settings also allow user-selectable 9-bit to 12-bit temperature measurement

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humidity meter with 7 segment LED displays 1

Step-by-step guide for making a very simple temperature and humidity meter with 7-segment LED displays

LED Projects / By

In this blog post, I am providing you step by step instructions to build a very simple temperature and relative humidity meter for indoor use. All you need to build this project are an Arduino Uno or compatible board, a DHT11 sensor, and a MAX7219 based 8-digit serial 7-segment LED display. The temperature is displayed

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PC based heart rate monitor using Arduino and Easy Pulse sensor

PC-based heart rate monitor using Arduino and Easy Pulse sensor

Sensor – Transducer – Detector Projects / By

The heart rate, also referred to as pulse rate, has been recognized as a vital sign since the beginning of medicine, and it is directly related to a person’s cadiovascular health. Today, we are going to make a PC-based heart rate monitor system using an Arduino board and Easy Pulse V1.1 sensor. Easy Pulse is

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Using BMP180 for temperature pressure and altitude measurements

Using BMP180 for temperature, pressure and altitude measurements

Temperature Measurement Projects / By

The BMP180 is a new generation digital barometric pressure and temperature sensor from Bosch Sensortec. In this tutorial, we will briefly review this device and describe how to interface it with an Arduino Uno board for measuring the surrounding temperature and pressure. We will also discuss about retrieving the sensor altitude from its pressure readings. Experiment setup

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Controlling relay switches with an infrared remote

Controlling relay switches with an infrared remote

Other Projects / By

The infrared (IR) communication technology, which existed long before WiFi and Bluetooth, is still a key component in implementing major components of a typical home automation system. For example, IR technology is still used in cordless headphones, for intrusion detection in home security systems, and in handheld remotes for controlling home entertainment systems (TV, DVD, soundbox, etc),

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