Time delay relay on
Updated: 2012-03-31 21:21:44
I need a 5 second delayed relay driver with some qualifications -
When the input goes to ground momentarily. 5 seconds later, the output closure...
Microchip MDD File System
Updated: 2012-03-31 21:20:42Ok, Microchips MDD File System doesnt support more than one device.. so my query is this: how do i simultaneously implement an SD card interface and...HT12E/D resistor values help
Updated: 2012-03-31 21:13:38Hi, Please help. On HT12E I am using 6v so what resistor value should I use? On HT12D I am using 5V, here also, what resistor value? I'm confused...Reading temperature from MCP9801 via I2C with 8051
Updated: 2012-03-31 21:03:26I am trying to communicate to a MCP9801 temperature sensor via I2C using a 8051 microcontroller. I wrote a routine to set the resolution in the...Messing about with motors
Updated: 2012-03-31 19:56:27I'm starting to make a very simple brushless DC motor. It's just a single coil and a couple of magnets glued to a needle. Mechanically it's simple,...Lack of pictures and videos in completed projects index
Updated: 2012-03-31 19:40:52I don't mean to shake my fist, but I do enjoy viewing pictures and videos of completed projects, but there is a great lack of these in the index for...Safety question about grounding with resistive flooring
Updated: 2012-03-31 19:36:57Does anyone have the ability to put together an electrical model explaining the theory behind identifying a safe minimum electrical resistance for...Display GPS position on a LCD with PIC16F628A
Updated: 2012-03-31 19:30:49Hi, I'm trying to build a little circuit which displays some info from a GPS-module. The module is EM - 411...Current Source DC-AC Inverter
Updated: 2012-03-31 19:15:28Hi, With a current source inverter, which current is constant? The input current or the output current? Thank you!Obtain y-parameters
Updated: 2012-03-31 18:15:45Hi, I have an easy circuit that Im trying to find the y-parameters for. I'm having troubles finding the y11 parameter - I think the dependent source...FL's turning into Cracktown LA
Updated: 2012-03-31 17:29:52Look at this stuff. http://www2.tbo.com/news/breaking-news/2012/mar/31/police-14-people-shot-outside-miami-funeral-home-ar-387111/ I haven't seen...Wireless camera mount offers pan and tilt functions
Updated: 2012-03-31 17:06:25
[Chris] put together a bunch of common components to create this wireless pan and tilt system for a security camera or a robot. The motorized base is simple enough, using two servos to make up a mount for the digital camera. In this case he used a parts package which is designed to mount the servos [...]Pre-built GNU toolchains
Updated: 2012-03-31 16:53:50Hi, We've made a website where you can download pre-built GNU toolchains: http://gnutoolchains.com/ We have currently built the following...Quieting an inexpensive bench power supply
Updated: 2012-03-29 22:01:27
[Mike] just purchased this Atten APS3005S bench power supply for around $80. It does the job, but boy is it noisy! We were pretty surprised to hear it fire up in the video after the break. To make matters worse, the noise is persistent since the fan never shuts off. Having worked with other bench [...]DNA Computer Chips On The Way?
Updated: 2012-03-18 06:58:03The future of life sciences appears to be even more reliant on computing than we had supposed, and vice versa. From computer technology fields to Huntingdon Life Sciences careers, biological systems are being studied more extensively than ever with the … Continue reading →
SMD Assembly Demo using Home-Made Vacuum, Stencil, Toaster Oven
Updated: 2012-03-12 10:32:10We talk about solder paste, cheap kapton stencils, how to make a home-made vacuum pick-up tool, and toaster oven reflow temperature profiles.Electronics Design Contest
Updated: 2012-03-07 03:58:26
Join electronics design contest and win prizes. Test your hardware and software skills against the best designers from the rest of the world.