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PIC power meter
Written by Dangerus Prototypes   
Wednesday, 27 July 2011 00:00

Authors: Dangerus Prototypes


Here’s an example of PyroFer’s DIY workaround to a problem:

So, after Google killed the Google PowerMeter api I got the incentive to finish my own project using it. Odd huh.
I wrote loads of code to hook into the Google API ages ago, but never got the hardware setup. Now After Google announce the death of the API I finally cracked the last part of my hardware issues and have live power monitoring of my electricity meter.

The key difference to most here is that its NOT a clamp type sensor. It counts rotations of the meter disc itself. It is therefor accurate and matches exactly what I will be charged for.

PyroFer uses a PIC UBW board as the brains of this project. Read all the details atPyroFer’s Projects.

Read more: Pyrofersprojects

Last Updated on Wednesday, 27 July 2011 13:59
 
Class D amplifier assembled
Written by admin   
Friday, 22 July 2011 00:00

Authors: dangerousprototypes

NBitWonder built a class-D amplifier. 

Class-D amplifier is a highly efficient amplifier that operates its output devices as switches instead of as variable resistors. We posted a highly experimental version of this project last November, and it met with a surprising amount of positive feedback from the DIY community. Therefore, we developed it as a formal project

Class D amplifier assembled – [via]

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Last Updated on Thursday, 21 July 2011 21:41
 
Hacking a PIR RF signal with PIC 12F683
Written by admin   
Thursday, 21 July 2011 00:00

Authors: admin

433

dangerousprototypes.com writes:

Deepak from Mindfront.net acquired a PIR alarm sensor module which transmitted a digital code over 433 MHz RF to signal an alarm receiver. The problem: he didn’t have the factory receiver. So he set out to sniff the transmitted RF signal using a RCR-433-AS receiver module with the data out fed into an oscilloscope. This allowed him to monitor the digital coded signal pattern and decode it into individual bits.

Read more: dangerousprototypes.com
Last Updated on Wednesday, 20 July 2011 22:56
 
BlueScripts: communication across Bluetooth
Written by Electronics lab   
Sunday, 17 July 2011 14:19

Authors: Electronics lab

BlueScripts is a program for the scripting of Bluetooth ASCII messages to Bluetooth radios via an Android phone and an XML file. It is open source.

BlueScripts allows the user to automate sending messages to Bluetooth radios for embedded system projects without the need to input the messages on a terminal application or write a separate Android program.

BlueScripts: communication across Bluetooth - [Link]

Last Updated on Monday, 15 August 2011 01:59
 
RGB Laser Projector
Written by admin   
Wednesday, 13 July 2011 00:00

Authors: admin

www.microsyl.com writes:

This project is my second one with laser, I had learn many thing from my first green laser projector. Now I had decide to make a professional laser projector with 3 laser of 3 different color, Red, Green and Blue. And with galvos who have better spec. I had buy a 30kpps galvo, a 300mw red, 80mw green and 250mw blue.

RGB Laser Projector - [Link]


Last Updated on Wednesday, 13 July 2011 00:29
 
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