HOW-TO: Music Reactive Desk Light
ArduinoLed

HOW-TO: Music Reactive Desk Light

Martina @ natural-nerd.com build a sound reacting LED light using Arduino: Hi! In this build we’ll make a good looking light that dances to all sounds and music, using simple components and some basic Arduino programming. It makes an awesome effect while standing on the desk when...

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Multichannel Wireless Light Dimmer
IoT

Multichannel Wireless Light Dimmer

abhishek123 @ instructables.com writes: This project aims to Control the intensity of the dimmable lighting appliances via a trailing edge dimmer. Provide the user , ability to control lightsindependently and wirelessly over the Wi-Fi network and the Internet! Multichannel...

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Ambient light sensor for heart rate sensing in wearables
Sensor

Ambient light sensor for heart rate sensing in wearables

Everlight (New Taipei City, Taiwan) has introduced an ambient light sensor that operates at 550nm with a very low signal calculation failure rate and a high current efficiency. An anticipated application for this device is heart rate signal detection in wearable electronics for the...

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Build Your Own I2C Sensor
Raspberry Pi

Build Your Own I2C Sensor

Since Raspberry Pi doesn’t have a built-in ADC (Analog to Digital converter) to read the voltage off from most of sensors, the best solution is to add I2C ADC chips and modules to your project. Paweł Spychalski faced this problem while building his own weather station that is based...

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How to Measure LUX With Arduino
Arduino

How to Measure LUX With Arduino

In this tutorial codebender_cc uses the Adafruit TSL2561 sensor to measure LUX with Arduino. The TSL2561 luminosity sensor is an advanced digital light sensor, ideal for use in a wide range of light situations. Compared to low cost CdS cells, this sensor is more precise, allowing for...

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TritiLED – Multi-year always-on LED
Mcu

TritiLED – Multi-year always-on LED

Ted Yapo has designed a multi-year always-on LED replacements for gaseous tritium light sources. TritiLEDs are always-on battery powered LED glow lights for general night-time marking use. Radioactive gaseous tritium light sources (GTLSs) are allowed in the United States in several...

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Dark Sensitive Switch – LED Light
Control

Dark Sensitive Switch – LED Light

Dark activated LED light is a simple project which operates a LED when the light falling on the LDR goes below a set point.  The circuit is built using LM393 comparator, LDR as light sensor, preset (potentiometer) for sensitivity adjustment, transistor to drive the LED. The project...

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Ambient light and proximity sensors sense distances up to 10cm
Sensor

Ambient light and proximity sensors sense distances up to 10cm

With its APM-16D17-05-DF8-TR8 and APM-16D17-06-DF8-TR8 ambient light and proximity sensors, Everlight aims to save energy and reduce unwanted signals and noises when used in smartphones, tablet PCs, residential smart lighting and digital signage applications. [via] Both series use a...

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