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Power Stage Controllers drive transistors in applications like DC to DC converters, power factor correcting circuits, motor drivers, etc. Atmel describes the basics of their PSC equipped AVRs: This application note is an introduction to the use of the Power Stage Controllers (PSC) available in some AVR microcontrollers. The object of this document is to give a general overview of the PSC, show their various modes of operation and explain how to configure them. The code examples will make this clearer and can be used as guide for other applications. The examples are developed and tested on AT90PWM3.
Dangerous Prototypes · A new open source hardware project every month
Similar to Bluetooth, the protocols of the Nordic VLSI nRF24L01+ chip are designed such that the MAC address of a network participant doubles as a SYNC field, making promiscuous sniffing difficult both by configuration and by hardware. In this short article, I present a nifty technique for promiscuously sniffing such radios by (1) limiting the MAC address to 2 bytes, (2) disabling checksums, (3) setting the MAC to be the same as the preamble, and (4) sorting received noise for valid MAC addresses which may later be sniffed explicitly. This method results in a rather high false-positive rate for packet reception as well as a terribly high drop rate, but once a few packets of the same address have been captured, that address can be sniffed directly with normal error rates. As proof of concept, I present a promiscuous sniffer for the Microsoft Comfort Desktop 5000 and similar 2.4GHz wireless keyboards.
Travis Goodspeed's Blog
In most of the descriptions of DIY electronics projects that I come across, the fasteners used in construction are merely mentioned in passing, if at all. However, the size, composition, and configuration of the nuts, bolts, and other fasteners can be just as important as the electronic components. Skimping on fastener hardware isn’t limited to enthusiasts on a shoestring budget. The practice extends to companies that assemble thousands of devices a day.
Nuts and Volts
March 15, 2012 This month's update covers AMD's new Radeons HD 7750, 7770, 7850, and 7870 graphics cards, along with the disappearing Radeon HD 6950 and 6970. Plus, we consider the value of Nvidia's GeForce GT 440 GDDR5 now that the Radeon HD 5670 is unavailable.
Tom's Hardware: Hardware News, Tests and Reviews
This April, the Inforum Center for Leadership is launching the ACTiVATE program, which helps smart women find innovative ideas, validate commercial viability and launch growth-oriented businesses. Attend an info session at TechTown March 13 to learn more.
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kojote RT @make : The Call To Makers has been extended! You now have until March 27 to submit your ideas! ow.ly/9P5Qg 4 minutes ago · reply · retweet · favorite