This project is a LED reading lamp using SMD Leds.
At night, when I read in bed and my wife is trying to sleep, the lamp on the night stand is kinda bright and obnoxious and, even though she says it doesn’t, the light disturbs her. I had been using a little USB-powered LED lamp that I bought for my laptop on long night time airplane rides. However, I can’t charge my iPhone while I’m using that light. Only one USB cable available at the night stand. Also, that light isn’t quite bright enough for my liking. What to do?
LED Reading Lamp – [Link]
This project is a LED mood lamp using SMD RGB leds mounted on a dodecahedral assembly of custom circuit boards. In that way the light pattern is even. [via]
The first thing I did was devise a plane for the “bulb.” I decided to go with a dodecagon, which I believe means a 12-sided object. Actually, I had no idea what one of these things was called. I just figured that I needed pentagons to make something more globe-like than a cube. I wanted light to emanate outward from this bulb thing like a light bulb, but with as few sides as possible. The sides were no doubt going to be PCBs, so the less complex, the better. Not that this wasn’t one of the most complex circuit boards I’ve ever built in my short time as a hobbyist circuit builder.
A potentiometer controls the dimming of the LEDs. The other knob on the breadboard is a rotary encoder. This allows the user to change the mode of the lamp from a plain white for reading to an auto-cycling rainbow of colors to a user-selectable color. The built-in pushbutton changes the mode. The rotary encoder’s knob changes the speed of the auto-cycling colors or the user-selected color.
LED mood lamp – [Link]
This project shows how to use a frypan for surface mount soldering. It uses a thermistor sensor to measure the frypan temperature and a solid state relay to control it. The overall device is controlled by an Arduino. To gain fine control of temperature the relay is controlling the heating element on and off. It’s something like low-frequency Pulse Width Modulation. [via]
Computer-controlled frypan for surface mount soldering - [Link]
This is a DIY SMD vacuum components placement device using a small aquarium pump. The author opened the pump and fit a tube on the input of the pump. The end probe is a syringe with a tiny nozzle. [via]
Homemade SMD Vacuum Component Placement Device – [Link]
A how-to guide to taking your electronics project from prototype through to high volume PCB manufacture. Covers component selection and purchasing, SMD, DFM, PCB panelisation, gerber generation, drill files, pick and place files, and more.
PCB Design For Manufacture Tutorial – [Link]
This project shows how to build your own LED ring light. “Alan” bought a stereo microscope from ebay and wanted a powerful light source, so he machined one using a lathe. The light ring comprise of SMD LEDs and a block of lexan. He machined it to include slots for the LEDs as well as the microscope mount. Check photos and construction details on the link below.
Make your own Ring Light - [Link]
This project is a very small virtual rotating led beacon build using 4 x 0603 SMD LEDs and it takes place of about 2,5 mm3. LEDs are controlled by a PIC12F629 and drives each led by a PWM signal. See the virtual rotating effect on the video above.
Virtual rotating LED beacon – [Link]
This video shows an ultra fast and precise robot positioning small units. This is used to position surface mount components on printed circuit boards (SMD on PCB) during manufacture. Video was captured at the Japanese competitive robotics event, RoboCup, in Osaka 2010
Ultra fast surface mount device positioning robot - [Link]
This video explores the tiny world of surface mount components. Collin Cunningham constructs what may be the world’s smallest phototheremin and shows it in super macro detail.
Soldering Surface Mount Devices – [Link]
An intervalometer is used to take a photo at a preset interval. This design by Udi Tirosh may be the smallest DIY intervalometer ever made. It uses a micro PIC microcontroller and two other smd parts and is so small it fits inside a phone jack! Source code and desing files are available on the link below. [via]
SMD intervalometer – [Link]