Ham Radio Data Center

Free electronics schematics, circuits, datasheets, projects, technical articles and related products.

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RSS [Electronics] [Ham Radio] [Microcontroller]

 

  • AnalogicTech AAT1185 power controller supports synchronous and non-synchronous designs
  • PRODUCT HOW-TO: Matching and tuning audio amplifier output stability and sound performance.
  • Presented By:
  • How to avoid interference in earth station receivers
  • Presented By:
  • FPGA-based prototyping board offers more that 50 million ASIC gates
  • IZ1CRR (Maury): DX Summit Alert
  • The Big Payback?
  • iPhone becomes top seller as handset sales fall
  • EA1CS: EL JUEGO DEL DXCC
  • M0KHZ (Kevin): BeagleBoard – & the PMAP3530 processor
  • National"s Halla hails analog processing
  • Peregrine Semiconductor offers new method to tune mobile antennas
  • DIY Drawdio
  • AT&T BlackBerry Bold hands-on at Engadget Mobile!
  • Casio XJ-SC215 Projector Review
  • AT&T BlackBerry Bold hands-on
  • VGPS-900 now does voice recording
  • Hacking the minicooper
  • Machine Embroidery covering Conductive Thread
  • Yarn with Conductive Thread Core
  • Angelina Fusible Fibers with Conductive Thread
  • Oakley and Surfline Create Free Surf Application
  • Sanyo PLV-Z5 Projector Review
  • Conductive Thread inside a Fabric Bias Tube aka Tubes of Conductiveness
  • Lenovo IdeaPad Y530 Overview
  • Fused Fabric with Conductive Thread
  • EOps high concept wireless iPod speakers strongly resemble a cheap desk lamp
  • irivers wave touchphone hits Korea on March 9th
  • Signal Chain Basics (Part 23): EIA-485--Receiver equalization boosts networking performance
  • Microvision Announces Developments for the SHOW Projector
  • Kill A Wattteardown
  • WaldFl?te: midi controlled pipeorgan
  • Debian gets ported to the G1, makes nice with Android
  • Aiptek Pocket Cinema V10 available for pre-order on Amazon
  • The iPhone rocket: The story (and data) of how an iPhone hit 1300ft
  • Epson Releases PowerLite Home Cinema 800 Projector
  • Use a Nintendo SNES controller on a Sony PSP!
  • drivers with GPS phones can now be traffic probes
  • Olens Technology Releases XPJ-USA010 Projector
  • DoD earmarks $400 million for basic research
  • Presented By:
  • Seagate announces larger, faster AES-packing Momentus hard drives
  • Dell SP2309 23-inch QWXGA Monitor
  • LEGO NXT walker turns from both ends
  • MM0NDX (Colin): Rare footage of EU-189 (Rockall)
  • Crapgadget: how to ruin a gift-giving experience edition
  • The Apple iPhone is now the bestselling Phone in US
  • iPhone 3G overtakes the RAZR as best-selling domestic handset
  • Samsung E1110 and E2510 are two simple and economical offerings
  • The better part of Nokias smartphone roadmap goes on display
  • Stop-motion phone bending
  • VU2SGW (Sailin): Lightning Predictor :
  • The Ferrari Scuderia Spider 16M is the fastest convertible ever
  • Navigon launches uber-premium 4.8-inch 8100T navigator
  • California gives the go ahead for the Electric bullet train
  • N0TU (Steve): Spartan Sprint Blues
  • N0TU (Steve): Zombie Shuffle QRP Contest
  • Symbian Application: gStorage - Free version
  • BlackBerry Storm delayed?
  • New BlackBerry Storm TV Commercial airs
  • Nintendos DSi gets cracked wide open
  • G1 Owners got Android OS RC30 Update
  • Microsofts desktop-equipped mass transit bus is a boss dream
  • RED teases again with exposed ports
  • Ballmer hints on launching Apple like Windows App Store
  • Train bams train; dumps 18 Porsches to the tracks!
  • Dell SP2309 LCD monitor
  • Windows 7 multi touch demod
  • NVIDIAs Quadro FX 5800 with 4GB graphics memory is the most powerful graphics card in history
  • The largest robot truck lets the driver chill while it mines
  • Sony Ericsson predicts a sonic future in phones: 20-mp cams, HD Video Recording in 2012
  • RFID Beer Cooler Lockdown
  • iPhones are twice as reliable as Blackberries says study
  • NAVIGON 8100T
  • Music boxes create harmonious sounds
  • ntv46 multimedia navigator
  • Gesture based Interface - RIP Mouse and Keyboard
  • T-Mobile inexplicably revives Sidekick iD, sells for $49.99
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  • Is the U.S. falling behind in chip R&D?
  • Testing WiMAX, testing
  • U.S. broadcaster gives thumbs up to mobile TV spec
  • How much transmit power do WiMAX nets need?
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  • Robotic dance-off
  • How-to: Covering conductive thread
  • The Ultimate Tool for Street Photography, Kid Photography, and the Camera-Shy
  • Roomba 530 Wall-E edition proves even robots are corrupted by money
  • Comprehensive Intel Health Guide seeks to provide in-home health monitoring
  • Honda All-New Life-Worlds first automobile to offer a driver-side i-SRS airbag system with continuously staged inflation
  • Stopping teachers from spying on what you are doing on school computers
  • Autonomous Helicopter Navigates Like Bugs
  • Ferraris Scuderia Spider 16M to integrate customized iPod touch
  • KJ4DLD (Tim): Antenna Maintenance, My First Asian Contact, and W4H Update (My first real pileup)
  • Nissan announces Worlds first Precision high-speed neutron imaging system
  • Dell scraps plans for new MP3 player in a fit of sanity?
  • The Electronic Wasteland - Where electronics end up...
  • LuvBook U100: The Netbook with the Price of a Notebook
  • IZ1CRR (Maury): P29NI: online logs
  • Mars Phoenix Blogs For Gizmodo
  • $131k Softbank 823SH Tiffany handset sells out in three days
  • Dell to offer Xbox 360 Arcade and Rock Band 2 for $199 on Black Friday
  • Dean Kamens Stirling enginecar
  • Telenav Shotgun connected GPS launched, reviewed
  • Silicon Mountains Allio: 42-inch HDTV with built-in PC / Blu-ray player
  • TIMEs Best Inventions of2008
  • WA1LOU (Stan): Surfin’: How We Got Here
  • New WPA TKIPattack
  • How to compress your psp backups ISO files into CSO files to save space.
  • UWB evolves
  • Headphones can interfere with defibrillators and pacemakers
  • Canon Camera Costume
  • Weasure, a scale that weighs andmeasures
  • Headphones can interfere with heart devices-study
  • K2DBK (David): It"s about time
  • IW3SOX (Elio): SOTA FV031 Monte Cuel dai Poz 2008
  • ASUS AIR3 iPod speaker system / internet radio hits the FCC
  • Dell Inspiron Mini 12: Better form factor, but Vista still sucks
  • K2DBK (David): K2NUD/MM Limited Multi-Op - Part IV
  • K2DBK (David): K2NUD/MM Limited Multi-Op - Part III
  • K2DBK (David): K2NUD/MM Limited Multi-Op - Part II
  • K2DBK (David): K2NUD/MM Limited Multi-Op - Part I
  • K2DBK (David): Operating /MM from FM39 this weekend
  • How to destroy afilesystem
  • The math of DSP, part 4: Convolution, Fourier, and Nyquist
  • Telus tantalizes with LG Chocolate GiG music phone
  • Intelligent Solar Garden Light - Part 2
  • Purported Dell 23-inch SP2309 LCD monitor leaked, tasty specs and all
  • Replace capacitor in computer board
  • Android executes everything youtype
  • IK1LBL (Mario): Una Delta fuori dal comune!
  • Microsoft reveals 46 new Zune Originals designs -- how will you ever choose?
  • High power LED bike head light with integrated heat sink
  • Anatomical art dresses
  • DIYer constructs artsy wall clock from spare HDD parts, tells all
  • Standard Dell mouse gets GRS electrode implant
  • Radio Direction Finder Schematic
  • Direction finders
  • Mcor launches Matrix 3D printer, only asks for your paper and glue
  • Hard drive laser shutter
  • Samsung offers up simplistic E1110 / E2510 handsets
  • First video game honored at Brookhaven lab birthplace
  • W8MRC (Milford Amateur Radio Club): VE Session
  • EA2CCG (Joaquin): EN EL MEETING RC ESPAÑA 2008 EN VILLAVA ( NAVARRA)
  • High Current Flickering Pumpkin LED Driver
  • Diesel Sweeties Robot Comic
  • IK8LOV (Max): Modificare un documento in PDF con Open Office grazie ad un’estensione di SUN Microsystems
  • Freestyle Audios waterproof Soundwave DAP gets reviewed
  • K0NR (Bob): Making Plans for Hamcon Colorado
  • IZ1CRR (Maury): P29NI: back home
  • StripboardDrawdio
  • Holux quietly introduces 5-inch GPSmile 62 navigator
  • IK1LBL (Mario): Essere o non essere...
  • Epic Android bug inteprets your typing as system commands
  • telenav shotgun
  • Virgin Media shows off stylish 50Mbps cable modem
  • how to get a diffrent desktop backround on ubuntu 8.04
  • Nintendo DSiteardown
  • M0KHZ (Kevin): Visitor Locations – A new development
  • Featured Product: TI dual-core MCU geared for auto safety applications
  • Intelligent Solar Garden Light - Part 1
  • Samsungs Slyde m540 comes to Telus in grey and pink
  • Dell Inspiron Mini 12 reviewed: bigger, not necessarily better
  • Italian HTC Touch HD gets unboxed, looks highly desirable
  • Symbian Application: nAlertMe
  • G4VXE (Tim): RF Safety and Radio Amateurs - are we the canaries in the mine?
  • Pioneer Inno XMp3 reviewed: great, save for reception hiccups
  • Panasonic Toughbook H1 Mobile Clinical Assistant for Medical Professionals
  • AT&T Quickfire hits shelves a few days early
  • Nanovision MIMO 7 USB connected and powered LCD mini monitor
  • how to get a diffrent desktop backround on ubuntu
  • CyberPower Gamer Xtreme M1 Gaming Notebook
  • IK1JNS (Pino): Volmetro LCD cinese - IK1BLK
  • LGs concept phone contest winners should please art house gadgetphiles
  • Saturday Deal: $298 Compaq Presario CQ50-139WM at Walmart
  • Generate PI-2005 Stimulus Vectors
  • Build your Yagi Antenna
  • AT&T picks up Centennial Communications for $944 million
  • AB9NN (Jon): Ham Radio SkyWarn Recognition Day!
  • The Hov pod SPX is added to Reaction Internationals line of hovercrafts
  • AT&T BlackBerry Curve 8900 on eBay, not cheap
  • Blues Eyeball webcam and Mikey iPod mic are made for digital crooners
  • How-to: Hacking RjDj with PD
  • EA2CCG (Joaquin): Del Itxaso a Brasil.
  • HTCs official Fuze page shows up... kinda
  • Samsungs winter lineup for the US gets dolled up for the camera
  • G4VXE (Tim): GB3VHF to close next month
  • Automotive radio receiver harnesses Software Defined Radio
  • Walmart, Kmart announce Black Friday-esque deals for days other than Black Friday
  • How would you change the Voodoo Envy 133?
  • JVC, Sensio team up on high-end consumer 3D projection system
  • Switched On: The Peek of popularity
  • Rambus takes aim at NVIDIA over alleged patent infringement, again
  • How to Connect a Fader with Audio Input and Output
  • CatGeniehacking
  • How to Connect a Push Button with Audio Input and Output
  • Samsung a777 breaks cover for AT&T
  • ASUS adds N80V and N50V to its ever-expanding family of laptops
  • A MySpace portable audio player?
  • Meet Sparky, the DIY Mac mini telepresence robot
  • Acidmods custom FPScontroller
  • Holux GPSmile 62 GPS navigation system with 5 screen
  • Knex Mecha iPhone / iPod Touch stand
  • Presented By:
  • Debugging: The 9 Indispensible Rules for Finding Even the Most Elusive Software and Hardware Problems (Chapter 4, Part 2 of 3)
  • Arduino RCairplane
  • picoChip targets femtocell "sniffer" opportunity
  • Look! Particles!
  • Happy birthday Marie Curie - MOTHER OF RADIOACTIVITY!
  • Qualcomm leaps into top 10 among chip suppliers
  • The iPhone advantage: Spreadtrum sinks, Skyworks soars
  • Presented By:
  • ST-NXP wireless venture to rationalize, cut 500 jobs
  • Design robots to hunthumans
  • MEMS device switches among RF sources
  • RFID and Global Privacy Policy--Part III
  • Election results cartogram
  • Rip DVDs to your iPod
  • Analyst lowers handset forecast
  • Presented By:
  • GPS chip firm seeks $13 million in Series B round
  • Bluetooth low energy to transform RF remotes (and much more) within a year
  • The astrometry pool on Flickr automatically adds labels to the astronomy photos you upload
  • FSK Demodulator Tone Decoder with RC2211N
  • Googlephone Jailbreak - Remote access gained ...
  • Presented By:
  • Want more RFID?
  • Getting root on theG1
  • Class D amplifier FAQ - Part 1: Overview, amplifier selection and filters
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  • Using comparators to detect accessories in portable audio applications
  • Modular Arithmetic: A Divisive Issue
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  • Plastic wires rival copper at 20% of the weight
  • Grasp the breadth of low-power systems design
  • Presented By:
  • Open source in consumer electronics: What, why and how
  • Anadigics cuts 15 percent of workforce
  • Intersil to cut 9 percent of workforce
  • Intersil to cut 9 percent of workforce
  • Maxim : Downconversion mixer features an LO switch, buffer and splitter
  • Presented By:
  • Freescale : RF power transistor is aimed at commercial aerospace
  • Any-rate, any-output clock generator simplifies timing architectures
  • Automotive electronics face hybrid challenge
  • Changing and rotating tires
  • SV Chronometer a GPS based, interactive master clock
  • Block Occupancy Detector
  • Optical Occupancy Detector
  • DCC Compatible Block Occupancy Detector
  • LAB-XT Telephony Experimenter Board
  • Optoisolator Type Block Occupancy Detectors
  • Power Tips #5: Buck-boost design uses a buck controller
  • Desert Island Design: Bridging the (filter) gap without software
  • Desert Island Design: Bridging the (filter) gap without software
  • Microchip Technology enhances mid-range 8-bit PIC MCU core
  • DC Motor Drive Basics: Part 3 - Control arrangements for DC drives
  • DC Motor Drive Basics - Part 3: Control arrangements for DC drives
  • Microchip Enhances 8-bit Mid-range PIC(r) MCU Core
  • Presented By:
  • 65-V SWIFT DC/DC converter focuses on light-load efficiency
  • 45V, 50mA synchronous buck converter delivers 12µA quiescent current
  • Virage Posts Gains
  • Multi-Color fogspreader
  • Hybridizing a "59 Lincoln
  • Presented By:
  • Ready-to-go with 8-bit auto microcontroller design
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  • Reality Check: RFID Unlocks the Potential One Step at a Time
  • Self-balancing robot powered by an Arduino
  • Austriamicrosystems AS1324 TSOT23 converter sources 600mA
  • Presented By:
  • Ericsson PKU-E converter delivers 35W
  • Geensys" AUTOSAR Builder is first to comply with ARTOP specs
  • Test GPS receivers with real-world data
  • Will analog foundry model work?
  • Ferrite chip beads save 40% in mounting space over 0402 products
  • Presented By:
  • Switcher chips offered in low-profile eSIP-L package
  • 2A standard buck regulator provides high efficiency in small package
  • Time for a change for the better?
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  • TTTech tool provides CAN and FlexRay gateway
  • Propeller halloween contestwinners
  • Under the Hood: MotoGP electronics is where the rubber meets the road
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  • High-voltage hype charges up foundries
  • Presented By:
  • Under the Hood: MotoGP electronics is where the rubber meets the road
  • Opinion: The energy imperative
  • Presented By:
  • Analysis: Hollywood"s next digital media gambit
  • Robot fish CADmodels
  • The math of DSP, part 3: Filters
  • Use object-oriented MATLAB for DSP
  • PIC24FJ64GB110
  • PIC24FJ192GB110
  • PIC24FJ256GB110
  • PIC24FJ128GB110
  • PIC24FJ64GB108
  • PIC24FJ192GB108
  • PIC24FJ256GB108
  • PIC24FJ128GB108
  • PIC24FJ256GB106
  • PIC24FJ192GB106
  • PIC24FJ64GB106
  • PIC24FJ64GA002
  • PIC24FJ128GB106
  • Featured Product: Fujitsu enhances economical automotive display controllers
  • Presented By:
  • Presented By:
  • IEEE to vote on new low-power design standard
  • Agilent introduces EMPRO 3D electromagnetic design platform
  • Debugging: The Nine Indispensible Rules for Finding Even the Most Elusive Software and Hardware Problems (Chapter 4, Part 1 of 3)
  • ST, Arkados develop HomePlug AV SoC
  • Italian Ski Resort Hosts NFC Trial
  • Presented By:
  • MasterCard Strengthens Its Mobile Services
  • Understand HDMI, DVI and DisplayPort jitter from unbalanced twisted pair and differential cables
  • Presented By:
  • New DSP-FPGA development platform
  • CEA supports new Energy Star TV spec
  • Optical films deliver energy efficiency for LCD TVs, notebooks and monitors
  • Presented By:
  • Presented By:
  • Atmel motor driver chips feature high reliability
  • RFID and Global Privacy Policy--Part II
  • Inside Contactless Works With FIME on NFC Interoperability
  • Presented By:
  • Memory technologies offer a diverse array of choices
  • Digital audio receiver IC integrates sample-rate converter
  • Portable audio codec improves battery life
  • Continental announces cost cutting program
  • PIC24FJ48GA004
  • PIC24FJ48GA002
  • Featured Product: Simulink Fixed Point 6 targets more accurate design, simulation
  • Group develops car-to-car communication simulation tools
  • Presented By:
  • How to improve FPGA-based ASIC prototyping with SystemVerilog
  • PLM, multidisciplinary simulation enable automotive mechatronics integration
  • Presented By:
  • Experiment with power-saving LED lighting with engineering kit
  • Apple teardown serves as guide to learning from past failures
  • Video: MP3 creator on digital media
  • Aspire One 3Ghack
  • Wal-Mart Pulls Eggs in China
  • Digital power control delivers efficiency in high-power applications
  • Presented By:
  • 3D WiFi blimp
  • Ixia, Juniper Networks, LBNL unveil telecom energy efficiency metric
  • Amazing 3D Computer Animated Music DVDs
  • NEC Electronics Reports Financial Results for the Second Quarter Ended September 30, 2008
  • LilyPad Arduino XBee mashup ready for prime-time
  • Microchip Unveils Next-Generation, High-Speed In-Circuit Debugger for MCU & DSC
  • RFID and Global Privacy Policy--Part I
  • Presented By:
  • IBM"s On Demand Push: Greater than Sum of Parts
  • Microchip Makes Embedded Ethernet Easier w/ Security Upgrade to TCP/IP Stack
  • Audience"s A 1024 voice processor dramatically erases noise from the environment
  • Presented By:
  • Audio codec boosts audio performance, battery life in portables
  • 32-Bit audio DSP simplifies high-performance, cost-sensitive designs
  • Presented By:
  • The math of DSP, part 2: Complex numbers
  • Fall ESC08 Boston Preview: Security, Son, Security
  • Presented By:
  • ST pumps up car radio sound with digital-input audio amplifier
  • Audio power amplifier integrates fault detection functions
  • Surface-Mount Package Integrates Battery, DC, Converter, Charger
  • Presented By:
  • The future of wireless networks: understanding 802.11n
  • Low-power WiFi ICs Add Active RTLS
  • MLC 52 RS VC EU and MLC 52 RS EU MediaLink® Controllers
  • Baird RFID Monthly October Summary
  • BMW, NXP Unveil Smart Key Prototype
  • Presented By:
  • Using RFID to Assist the Visually Impaired
  • NEC Electronics Revises First Half and Full-Year Forecasts
  • Signal Integrity Engineer"s Companion: The Wireless Signal--Part IX
  • Commercial self-balancingunicycle
  • Technology Week in Review: Saturn Flyby, Microgrids
  • Standards Related to RFID--Part IV
  • Presented By:
  • Silicon Ink Targets RFIDs
  • NEC Electronics Demonstrates Moorestown Power Management IC Solution at Intel Developer Forum Taiwan 2008
  • NEC Electronics Delivers Enhanced Design Flexibility and Performance with New 16-Bit Microcontrollers for Automotive Applications
  • Internal wireless mouse on a Dell Mini9
  • Extron Electronics to Exhibit at InfoComm Asia2008
  • DIY RFIDimplant
  • RFID Gaining Adoption
  • Presented By:
  • AIM Global to Develop Protocols for Testing RFID in Health Care
  • Green Revolution: RFID and the Rise of Convenient Sustainability--Part III
  • Presented By:
  • RFID Reader Chip Wins Fan
  • Mounting an external antenna on EeePC900
  • Mounting an external antenna on EEEPC9000
  • Alien Plants Stake in China"s Market to Support Locals
  • Geode, Mozilla Labs location-based browserplug-in
  • ArduPilot Pro autonomousdrone
  • Reliable instructions for OSX on theEeePC