Obsolescence-Proof Your UI (Part 1)

(Photo 1) Web Server Strategy After years of frustration dealing with graphical user interface technologies that go obsolete, Steve decided that web browser technology could help this problem. With that in mind, he built a web server that could perform … Continue reading

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Texting and IoT Embedded Devices (Part 1)

Fun with the ESP8266 SoC Can texting be leveraged for use in IoT Wi-Fi devices? Jeff has been using Wi-Fi widgets for a lot of IoT projects lately. This month Jeff lays the groundwork for describing a project that will … Continue reading

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IoT: From Device to Gateway

Modules for the Edge Connecting to the IoT edge requires highly integrated technology, blending wireless connectivity and intelligence. Feeding those needs, a variety of IoT modules have emerged that offer pre-certified solutions that are ready to use. By Jeff Child, … Continue reading

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Exploring the ESP32’s Peripheral Blocks

For IoT or Home Control What makes an embedded processor suitable as an IoT or home control device? Wi-Fi support is just part of the picture. Brian has done some Wi-Fi projects using the ESP32, so here he shares his … Continue reading

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Non-Standard SBCs Put Function Over Form

Compact, Low-Power Solutions A rich set of single board computer products fall into the non-standards-based category. These SBCs offer complete embedded computing solutions suited for applications were reducing size, weight and power are the priorities. By Jeff Child,  Editor-in-Chief While … Continue reading

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Money Sorting Machines (Part 3)

Bill Validation In this final article of his money sorting machine series, Jeff wraps up his coin sorting project and examines how a bill validator can tell one bill’s denomination from another. By Jeff Bachiochi Most of us connect Ben … Continue reading

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Designing a Home Cleaning Robot (Part 2)

Part 2: Mechanical Design Continuing with this four-part article series about building a home cleaning robot, Nishant and Jesudasan discuss the mechanical aspects of the design. By Nishant Mittal and Jesudasan Moses Cypress Semiconductor In part one (Circuit Cellar 329, … Continue reading

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Technology and Test Solutions for 5G

Next-Gen Communications As carriers worldwide prepare for 5G communications, chip suppliers and test equipment vendors are evolving their products to meet the challenges of the 5G era. By Jeff Child, Editor-in-Chief The technologies that are enabling 5G communications are creating … Continue reading

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LF Resonator Filter

Frequency Measurements In Ed’s November article he described how an Arduino-based tester automatically measures a resonator’s frequency response to produce data defining its electrical parameters. Here, he examines the results of those measurements and delves into variable series capacitance as … Continue reading

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Wearables Drive Demand for Extreme Low Power Solutions

Wearable devices put extreme demands on the embedded electronics that make them work. Devices spanning across the consumer, fitness and medical markets all need a mix of low-power, low-cost and high-speed processing.     MCUs & Analog ICs Meet Needs … Continue reading

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Power Alternatives for Commercial Drones

Solution Options Expand The amount of power a commercial drone can draw on has a direct impact on how long it can stay flying as well as on what tasks it can perform. But each kind of power source has … Continue reading

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Massage Vest Uses PIC32

Controlled with an iOS App These Cornell graduates designed a low-cost massage vest that pairs seamlessly with a custom iOS app. Using the Microchip PIC32 for its brains, the massage vest has sixteen vibration motors that the user can control … Continue reading

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Circuit Cellar Flash Back – Motion Triggered Video Camera Multiplexer

The new year 2018 is almost upon us. It’s a special year for us because the year marks Circuit Cellar’s 30th anniversary. In tribute of that, we thought we’d share an article from the very first issue.  Motion Triggered Video Camera … Continue reading

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Wearables Drive Low Power Demands

MCUs & Analog ICs Meet Needs Wearable devices put extreme demands on the embedded electronics that make them work. Devices spanning across the consumer, fitness and medical markets all need a mix of low-power, low-cost and high-speed processing. By Jeff … Continue reading

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Talking Hands: American Sign Language Gesture Recognition Glove

Roberto developed a glove that enables communication between the user and those around him. While the design is intended for use by people communicating in American Sign Language, you can apply what you learn in this article to a variety … Continue reading

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