In this issue

6 Build a Marginal Oscillator Proximity Switch
Detection Duty
By Dev Gualtieri

10 Obsolescence-Proof Your UI (Part 1)
Web Server Strategy
By Steve Hendrix

18 Color Recognition and Segmentation in Real Time
FPGA-Based Approach
By Claire Chen and Mark Zhao

26 Temperature Coefficient of Resistance Explored
Precision and Performance
By Molly Bakewell Chamberlin

SPecial FEATURE
32 IoT: From Gateway to Cloud
Starting Up, Scaling Up
By Jeff Child

Technology Spotlight
38 Displays Fit Diverse Embedded System Needs
Many Sizes and Solutions
By Jeff Child

Product Focus
46 32-Bit Microcontrollers
Connectivity and Security
By Jeff Child

50 Embedded in Thin Slices
Internet of Things Security (Part 2)
Side-Channel Attacks
By Bob Japenga

54 The Darker Side
Component Tolerance
Accuracy Unmasked
By Robert Lacoste

60 The Consummate Engineer
Design of Complex Systems
Safety Standards
By George Novacek

64 From the Bench
Texting and IoT Embedded Devices (Part 2)
A Messaging Mission
By Jeff Bachiochi

TECH THE FUTURE
79 The Future of High Temperature IoT
Which Microcontrollers Can Take the Heat?
By Jeremy S. Cook

Circuit Cellar Magazine Description:

Circuit Cellar magazine features engineering tutorials, detailed microcontroller-based projects, and embedded systems industry news for professional electrical engineers, EE/ECE academics, and highly skilled electronics enthusiasts. Since 1988, Circuit Cellar has featured projects and tutorials from the world's top engineers on subjects such as embedded development (e.g., prototyping and programming), signal processing (e.g., DSP chips and signal conditioning), programmable logic (e.g., FPGA projects), sensor systems (e.g., smart sensors and MEMS), 'Net-connected devices (e.g., IoT projects and protocol stacks), robotics (e.g., robotic systems and proximity sensing), and much more. Circuit Cellar is the ultimate resource for all of your electrical engineering-related needs.