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

__

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

__

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

__

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

__

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

__

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

__

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

__

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

__

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

__

Designing High Performance GUIs

UIs for the Multicore Era For embedded developers, it’s critical to understand the types of performance problems a typical end-user might encounter and the performance metrics relevant to user interface (UI) design. Phil examines these and other important UI design … Continue reading

__

Negative Feedback in Electronics

A Look at the Opposite Side Besides closed-loop control systems, negative feedback is found in many electronic circuits—especially in amplifiers. And just like positive feedback, negative feedback can significantly change or modify a circuit’s performance. By George Novacek Following last month’s … Continue reading

__

Logger Device Tracks Amp Hours (Part 2)

Alternative Energy Sources In this follow on to Part 1 of his story, Bill describes putting to use the amp-hour logger that he built using a microcontroller and a clamp-on ammeter. This time he discusses modifying the amp-hour software so … Continue reading

__

Analog ICs Meet Industrial System Needs

Connectivity, Control and IIoT Whether it’s connecting with analog sensors or driving actuators, analog ICs play many critical roles in industrial applications. Networked systems add new wrinkles to the industrial analog landscape. By Jeff Child While analog ICs are important … Continue reading

__

Antenna Measurement Made Easy

Covering the Basics If you’re doing any kind of wireless communications application, that probably means including an antenna in your design. The science of antennas is complex. But here Robert shows how the task of measuring an antenna’s performance is … Continue reading

__

FREE Sample Issue – Oct. 2017

  We’ve made the October 2017 issue of Circuit Cellar available as a sample issue. In it, you’ll find a rich variety of the kinds of articles and information that exemplify a typical issue of the current magazine. Don’t miss … Continue reading

__