4Jennifer Huber | HTML Task ManagerVoIP in the Limelight |
8John Gorsky | New Product News
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15David Tweed | HTML Test Your EQ |
16Mariano Barron | Speech Waveform EncoderMariano's speech waveform encoder makes reproducing audio content extraordinarily simple. Only one or two microcontroller pins are required. Read on to learn how to build and program your own AT89C4051-based encoder.Download: Barron180.zip |
28Huifang Ni Jingxi Zhang Yang Zhang | Connect with eZ80F91-Based VoIPVoice over Internet Protocol (VoIP) technology enables you to transmit phone calls as digital voice data over the Internet by way of packet-linked routes. In this VoIP system, a voice band pulse-coded modulation (PCM) codec is connected to an eZ80F91 MCU through serial peripheral and I2C interfaces. Connecting audio devices to the system is easy.Download: Zhang180.zip |
38Lionel Theunissen | eZ80-Based Wireless Network SystemYou can monitor several machines contemporaneously with Lionel's wireless network system. With its simple design and easy-to-use, 'Net-enabled interface, the versatile system is well suited for a variety of projects ranging from alarm control to home automation.Download: Theunissen180.zip |
From the Bench46Jeff Bachiochi | A Fresh Look at VoIPIf your eyes light up when someone mentions Voice over Internet Protocol (VoIP), this column's for you. Read on for a fresh look at this exciting new technology. |
52Eric Weddington | Bit Flipping TutorialAn Uncomplicated Guide to Controlling MCU FunctionalityBit flipping -- the process of flipping bits in registers -- enables you to control a microcontroller's functionality. But what is the best method of bit flipping? Eric points you in the right direction with this helpful tutorial. |
59Lane Hauck | Add USB to AnythingNeed to make a USB peripheral? Now you can add USB to any microprocessor with the new Maxim MAX3420E, which operates as a full-speed USB peripheral. Lane shows you how. He also describes the code he used to create a Windows Panic button.Download: Hauck180.zip |
2004 PSoC Design Contest64Lindsay Meek | Solar-Powered Water Pump ControllerLindsay's CY8C27443-based Solar Pump Controller operates a submersible water pump directly from solar panels. It's ideal for remote areas that lack conventional power supplies. The powerful PSoC provides three-phase PWM generation, signal conditioning, temperature monitoring, constant voltage-to-frequency control, and over-current and fault protection.Download: Meek180.zip |
69Charles Bundy | PIC16F627-Based Access ControllerWiegand-to-RS-232 ConverterUpgrade your security system with a PIC16F627-based access controller. Charles's system monitors traffic through a door and controls a magnetic door lock. An approved RF identification card is required for entry.Download: Bundy180.zip |
Applied PCs74Fred Eady | Put ZigBee to WorkUnderstanding ZigBee technology is one thing. Putting it to work is another. Fortunately, Fred has the hands-on experience to get a wireless embedded application up and running. This month he straightens the ZigBee learning curve with Microchip's PICDEM Z demonstration kit. |
Silicon Update79Tom Cantrell | World Beyond WareYou can design an entire PSoC-based embedded system without writing any code. Tom talks about experimenting with the CY3210-ExpressDK board and programming with PSoC Express. There's more, and less, to programming with pictures than meets the eye. |
93 | Crossword Puzzle |
94 | Advertiser's Index / August Preview |
96Steve Ciarcia | HTML Priority InterruptA Simple Wiring Job |
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