Follow mercenarymind on Twitter
Arduino Barometric Pressure Sensor BMP085
Written by admin   
Wednesday, 25 January 2012 00:00

Authors: admin

This project shows how to use the BMP085Barometric Pressure Sensor with Arduino. The BMP085 pressure sensor combines a absolute barometric pressure sensor (aka barometer) with an temperature sensor and communicates with arduino using I2C protocol.

Arduino & Barometric Pressure Sensor BMP085 - [Link]

Last Updated on Wednesday, 25 January 2012 03:36
 
Controlling a CNC over the web with an iPad
Written by Electronics lab   
Saturday, 14 January 2012 00:00

Authors: Electronics lab

Mike is just controlling a CNC over the web with an iPad, no biggie – 

Controlling my cnc over the web with my ipad so I mocked up a powertail with an arduino to turn the spindle on/off. Took the original housing off and it fits easily into my adafruit arduino case. Matt Ratto made an on off button for me in processing that can leave on my desktop and click remotely.

Controlling a CNC over the web with an iPad - [via]

image
image

Last Updated on Saturday, 14 January 2012 02:45
 
Understanding and Preventing LED Failure
Written by Electronics lab   
Thursday, 29 December 2011 00:00

Authors: Electronics lab

Kristin Lewotsky writes:

LEDs have a well-deserved reputation for high-efficiency operation, not to mention high reliability. Properly specified and implemented, LEDs should and do satisfy virtually every lighting application. Still, there are times when actual device lifetimes fall short of the specified ideal. LEDs are wide-bandgap semiconductor devices. As a result, they have far more complex and varied failure modes than the incumbent technologies. Unlike an incandescent lamp, where failure is fairly simple (the bulb produces light until the filament breaks), with an LED, the failure modes range from mechanical and electrical to material.

Understanding and Preventing LED Failure - [Link]


Last Updated on Thursday, 29 December 2011 02:24
 
Wifi Ice Tube Clock
Written by Electronics lab   
Wednesday, 19 October 2011 00:00


adafruit.com writes: 

Dan has taken an Ice Tube Clock, added a Roving Networks WiFly (RN-134) module, and wrote some firmware to add some more features to the clock. He has added time synch, weather data display, and even a Twitter display. He currently has it setup to alternate between the time, the weather and a Twitter message.

Wifi Ice Tube Clock –[via]

image
image


Last Updated on Wednesday, 19 October 2011 01:34
 
Mini Volt Meter
Written by Electronics lab   
Wednesday, 19 October 2011 00:00

Authors: Electronics lab

Put a voltage meter anywhere with this very handy display. These are often used by RC hobbyists for keeping track of batteries but we thought it would be great on a breadboard or enclosure.

Simply connect the red wire to the positive supply, and black to negative ground. The display has a microcontroller that will read the voltage, compare it to a stable reference and display the voltage with 0.1V precision on a 3-digit 7-segment display. It works from 3.2V up to 30V so it will be good for nearly any electronic project! The meter draws 3-4mA to power the microcontroller and display. This particular LED display is a nice vivid green, which we found very readable. Mounting tabs make this module easy to attach to any box or plate. 

Mini Volt Meter - [via]

Last Updated on Wednesday, 19 October 2011 02:59
 
<< Start < Prev 1 2 3 4 5 6 7 8 9 10 Next > End >>

Page 1 of 138