The VL6180X is the latest product based on ST’s patented FlightSenseTMtechnology. This is a ground-breaking technology allowing absolute distance to be measured independent of target reflectance. Instead of estimating the distance by measuring the amount of light reflected back from the object (which is significantly influenced by color and surface), the VL6180X precisely measures the time the light takes to travel to the nearest object and reflect back to the sensor (Time-of-Flight).
Combining an IR emitter, a range sensor and an ambient light sensor in a three-in-one ready-to-use reflowable package, the VL6180X is easy to integrate and saves the end-product maker long and costly optical and mechanical design optimizations.
VL6180X – Proximity sensor, gesture and ambient light sensing (ALS) module - [Link]
by blog.gbola.com :
Every year I notice that I have little issue waking up at 7am during summer months, yet waking up at 8am during winter is always unpleasant. Some quick research led me to find that the body is gradually woken up by light, which is why products such as the Phillips Wake-Up Light exist. However, with a starting price of £60 for the (very) basic version, I’ve opted to make my own smartphone-connected, automated wake up light instead.
DIY Automatic Wake Up Light - [Link]
The OPT3001 is a sensor that measures the intensity of visible light. The spectral response of the sensor tightly matches the photopic response of the human eye and includes significant infrared rejection.
The OPT3001 is a single-chip lux meter, measuring the intensity of light as visible by the human eye. The precision spectral response and strong IR rejection of the device enables the OPT3001 to accurately meter the intensity of light as seen by the human eye regardless of light source. The strong IR rejection also aids in maintaining high accuracy when industrial design calls for mounting the sensor under dark glass for aesthetics. The OPT3001 is designed for systems that create light-based experiences for humans, and an ideal preferred replacement for photodiodes, photoresistors, or other ambient light sensors with less human eye matching and IR rejection.
OPT3001 – Ambient Light Sensor - [Link]
by w2aew @ youtube.com
The Humanalight is a simple single-cell flashlight kit that will produce usable light, even from a “dead” AA battery. Circuits like these are often called a Joule Thief. This term has been applied to just about any circuit that allows you to boost the voltage from nearly depleted batteries for some other low-power application – such as lighting an LED. Strictly speaking, a Joule Thief circuit is an Armstrong style blocking oscillator that uses a bifilar wound transformer and relies on the saturation characteristics of the core to produce oscillation. This flashlight uses a simple two-transistor relation oscillator. A description of the circuit is given, and its operation is examined by viewing the waveforms on an oscilloscope. The proceeds from the sale of this kit benefit the “Ears To Our World” charity which provides self-powered radios and other technology to rural, impoverished and remote regions of the world.
Circuit Walkthrough: A single cell LED light - [Link]
This project provides some lighting effect by the blinking pattern of the bulbs connected at its output. Up to 8 Bulbs can be connected in between connector CN2 to CN9 and AC power to control them should be connected at Connector CN10. DC Power should be applied at Connector CN11 in accordance with the polarity marked on this connector. Care should be taken while using this it as it contains Main Power on the board.
Microcontroller based running light controller - [Link]
by FabricateIO @ instructables.com:
Smart lightbulbs cost your firstborn child. Which is a shame, because smart lights unlock tremendous potential for home automation, energy savings, and all sorts of cool projects.
If only there was a way to control your lights without breaking the bank…
And now there is! For $19 on Amazon, you can get a 4-lightbulb kit from China that ordinarily is limited to 4 channels from a single remote…but with some creative hacking, can be used to control an unlimited number of channels using an arduino and a very simple RF module!
Cheap Arduino Controlled Light Sockets - [Link]
Wireless. Easier. Safer. Longer Lasting Christmas lights. by Chris Higgins & Hardeep Johar:
The first ever wirelessly powered Christmas lights
Smartphone controlled energy efficient LED lights
Outshines any of the average Christmas lights by 20 years
AURA: The first ever, wirelessly powered Christmas lights - [Link]
It’s not often that I finish the various small projects I undertake. Tesla coils, mass spectrometers, automated tomato plant watering systems, homebrew heaters have all been conceived and sometimes parts bought and assembled with some even making it as far as working. This project however made it all the way to finished.
Bike Light Controller Re-Design - [Link]
by Dario Borghino @ gizmag.com:
Researchers at Tohoku University in Japan have developed a new low-cost flat panel light source that could pioneer a new generation of brighter, cheaper and greener lighting devices to rival LEDs. The device uses arrays of highly conductive carbon nanotubes to deliver evenly-distributed illumination with high efficiency and a power consumption as low as 0.1 Watts – about 100 times lower than that of light-emitting diodes.
Cheap, ultra low-power light source runs on just 0.1 Watts - [Link]
by By Ben Coxworth @ gizmag.com:
It’s the big paradox of emergency-use flashlights … by the time you eventually need to use them, their batteries have died. Eton’s new Blackout Buddy H2O, however, will reportedly still work after sitting for up to 10 years. And to turn it on, you just add water.
This latest member of the Blackout Buddy line has a magnesium-oxide battery, which starts delivering power to the light’s three LEDs when exposed to H2O. To initially fire it up, you dip it into a small cup of water, or pour water into its battery compartment. After that, it will keep going continuously for up to 72 hours – if it starts to dim within that time, you simply add more water.
Blackout Buddy H2O runs on water to provide emergency lighting - [Link]