2Mary Wilson | HTML Task ManagerA Sensory Experience |
10CJ Abate | HTML New Product News
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17David Tweed | HTML Test Your EQ |
18Donald Kunzig Robert Kunzig | Wi-Fi-Connected Power MonitorDesign Delivers Energy DataBrothers Robert and Donald Kunzig built a Wi-Fi-connected device to monitor a home's power usage. This article details the hardware and software they used for the accurate, easy-to-use monitor that can retain data even when power outages occur.Download: 274-Kunzig.zip |
26Fergus Dixon | Build an Embedded DNA SequencerThis article describes the challenges involved with building an embedded DNA sequencer. The design includes a motor controller, a light sensor amplifier, and an injector driver circuit. |
34Jesus Calvino-Fraga | The S2S DongleA Serial Port-to-SPI ProgrammerYou can build a serial port-to-SPI bridge programmer that functions without a preprogrammed microcontroller. The design is easy to prototype on a breadboard. It functions by directly translating asynchronous RS-232 signals to the synchronous SPI signals required by a microcontroller of your choice.Download: 274-Calvino.zip |
42Brian Millier | G-Code CNC Router ControllerPart 2: Axis and Host ControlThe first part of this article series explained how to build a microcontroller-based G-code controller for a CNC router. It showed how to use G-code language to program a CNC machine and motion control electronics. Part 2 describes two of the design's functional blocks: the axis controller and the host controller.Download: 274-Millier.zip |
Questions & Answers48Nan Price | Engineer, Author, and InnovatorAn Interview with Clive "Max" MaxfieldClive "Max" Maxfield is an engineer who has written more than a half-dozen engineering books, contributes to several blogs, and enjoys learning and relating information to others. Max and I recently discussed his journey from hardware design engineer to prolific book author and blogger, some of his ongoing projects, and his outlook on the future of embedded technology. |
Above the Ground Plane52Ed Nisley | Hall Effect Sensor CalibrationEngineers design circuits based on parameters in datasheets, but sometimes the parts don't match their specifications. Ed bought some cheap Hall effect sensors, tested them, and discovered a mismatch. In this column, he generates a known magnetic field to calibrate the sensors and describes how they performed.Download: 274-Nisley.zip |
The Consummate Engineer56George Novacek | Testing and TestabilityPart 1: Design a Dedicated Tester for an Electronic DeviceYou must consider your electronic device's final testing before the product ships. Designing testability into a product increases its reliability, reduces manufacturing cost, speeds up production, and decreases the cost of repairs. This article describes how an inexpensive dedicated tester can help thoroughly test your product.Download: 274-Novacek.zip |
From the Archives60Mikhail Galeev | Construct a Hand-Held Radiation MonitorIf you're a safety-conscious homeowner, then you've probably equipped your house with safety devices like smoke detectors and burglar alarms. But shouldn't you also protect yourself from radiation? If you're interested in doing so but don't want to spend a fortune on a machine, then you can follow Mikhail's instructions and build your own. |
From the Bench68Jeff Bachiochi | Build a MIDI Communication DevicePart 2: MIDI OutputThe first part of this article series described how to build a hardware circuit to monitor the MIDI traffic (message protocol) sent between MIDI devices. This article shows how to produce MIDI-compliant output, which enables you to record MIDI tracks or play music through a PC's sound system.Download: 274-Bachiochi.zip |
76 | Crossword Puzzle |
79 | Crossword Puzzle - Answers for Issue 273 |
80Neil Cherry | Tech the FutureLinux Home Automation |
FTP Directory for INK 274 | |
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