Even with the added hardware that lamp still looks relatively normal. But its behavior is more than remarkable. The lamp interacts with people in an incredibly lifelike way. This is of course inspired by the lamp from Pixar’s Luxo Jr. short film. But there’s a little bit of most useless machine added just for fun. If you try to shut it off the lamp shade is used to flip that switch on the base back on.
[Shanshan Zhou], [Adam Ben-Dror], and [Joss Doggett] developed the little robot as a class project at the Victoria University of Wellington. It uses six servo motors driven by an Arduino to give the inanimate object the ability to move as if it’s alive. There is no light in the lamp as the bulb has been replaced by a webcam. The image is monitored using OpenCV to include face tracking as one of the behaviors. All of the animations are procedural, making use of Processing to convey movement instructions to the Arduino board.
Do not miss seeing the video embedded after the break.
Continue reading “Pixar-style lamp project is a huge animatronics win”
In an effort to ease the process of soldering Ball Grid Array (BGA) chips at home [Roger] rigged up a hands-free solution for his hot air equipment.
The main component in the build is an Aoyue hot air rework station that he already had in his workshop. He wanted an adjustable mount that would hold it steady when reflowing parts so he hit Amazon and bought a $14 articulated lamp. After ditching the funnel-shaped shade he bolted a cable clamp to the socket housing. This can be tightened on the hot air wand, with the spring tension of the lamp making it easy and quick to reposition the nozzle. [Roger] sent this project directly to our tips line and we’ve embedded the rest of the project images after the break.
If you’re looking for a more DIY rework solution you should checkout this hot air pencil hack. It uses a desoldering iron, a fish pump, and some metal mesh as a heat sink to put out a stream of very hot air.
Continue reading “Hands free hot air station”
This toothbrush holder will make sure you’re brushing your pearly whites for an appropriate length of time. The three cups serves as tootbrush storage, and detect when one has been removed. Once you start brushing your teeth the lights on the front and bell in the back count down the process automatically.
The counting sequence starts when a weight sensor in the base detects a change caused by picking up a toothbrush. The ATmega328 — which is programmed with Arduino-style code — then turns on all of the incandescent lamps mounted on the front portion of the base. Each of these are switched with a 2N3904 transistor in order to sink enough current for the bulb. As a two-minute timer decrements, the bulbs are extinguished one by one. But there is also an auditory feedback mechanism. On the back of the base is a small bell. A hammer on a servo strikes the bell every 30 seconds to let you know how you’re doing. The entire thing is driven by an internal Li-ion battery which lasts about three weeks between charges. Don’t miss the demo video found after the break.
Continue reading “Toothbrush timer”
We keep seeing a lot of RGB lamps, but they’re also constantly increasing in size and complexity. Take this rendition, which uses a lot of RGB LEDs and has smartphone control (translated).
The lamp itself uses 31 RGB LEDs arranged in a sphere that organizes them into three vertical rings. They’re all ganged together (not individually addressable) with one transistor per color. An Arduino board is responsible for control, and the build includes a Bluetooth module for incoming commands.
As you can see above, the Android app driving the device is really quite good. In addition to sliders for color mixing there is a separate window with a color picker. [Remick] included options like favorite color combos, color scrolling, and a timer that will shut the lamp off. We couldn’t embed it here, but you’ll find some demo video at the link above.
This chandelier is something we’d expect to see on sale in the local gallery store. [Starkec] made it a couple of years back and we just love the look. The materials are pretty common, and you can throw it together in an afternoon.
The diffuser are made from clear glass soda bottles. After removing the labels and giving them a good cleaning, they were each set upside down and sprayed with some glass frosting spray. A four-conductor telephone wire serves both as the support for the bottle and electrical path for the RGB LED inside of each. The original screw cap for the bottles makes it a twist to install them after the soldering is done. There are two common color buses so that alternating colors can be shown at the same time. After seeing the video we think you’ll agree that the wiring scheme makes for some great animated effects.
Continue reading “Hipster chandelier”
[Styropyro] did a great job of taking common parts and making an interesting item. He calls this his Tornado lamp, and it’s made with stuff you probably have around the house — well you might have to substitute more common glassware for that Erlenmeyer flask.
The bulk of the hack is in the base. You’ll find a laser diode pointed at a small scrap of mirror. That mirror is mounted on the center of a small case fan, giving the tornadic effect when spinning. To make everything fit just right, the laser is pointed horizontally, with the fan/mirror at a 45 degree angle. The beam points up through a hole in the project box and illuminates the liquid in the flask. That liquid is water doped with a substance that fluoresces. In this shot it’s some fluorescein, but we did mention you can do this with stuff from around the house. [Styropyro] demonstrates the use of liqud from some highlighting markers as a substitute.
If you’re decoration a mad scientist’s lab this is a perfect companion for a Jacob’s ladder.
Continue reading “Tornado lamp made with lasers”
Ooooh, nice enclosure! This is a little motion sensing lamp which [Krazatchu] built a few years back as a Mother’s Day gift. The PIR sensor is easy enough to see as the white dome on the front of the case. But look closely below that and you’ll see the LDR which it uses to keep the thing asleep during the day. This is intended to save on batteries but the original version still ate through them like crazy. This year he gutted it and worked out a much more power-friendly design.
He moved to a TLC1079 OpAmp which greatly reduced power consumption when reading from the PIR sensor. The microcontroller was also upgraded from an ATtiny13 to an ATmega328, making the new version Arduino compatible. It puts itself to sleep and keeps the lights out during the day, drawing just 0.08 mA. When driving the RGB LED the lamp pulls about 50 mA. That should still last a while on three AA batteries but we’d still recommend using rechargeables.
Continue reading “Motion sensitive RGB lamp can standby for 3 years”