In this issue

Advances in PCB Design Tools
6: Build a Drill Position Indicator: Using Arduino Nano, By Anuj Justus Rajappa and Vairamani Kanagavel
12: Building a COVID Test Drone: Part 1: Components and Connectivity, By Andrei Florian
22: Build Your Own IoT Platform: Part 2: Connecting to Devices, By Dhairya Parikh
30: Devices Aid Speech for People with Disabilities: Using the BBC micro:bit, By Matthew Oppenheim
38: PCB Design Tools Enhance Their DFM Capabilities: Portals and Platforms, By Jeff Child
42: Embedded Displays Offer New Features and Formats: Screens for All Seasons, By Jeff Child
46: DATASHEET: Embedded PCs: Complete Compute Solutions, By Jeff Child
52: EMBEDDED SYSTEM ESSENTIALS: Power Analysis of ECC Hardware Implementations: Curves and Keys, By Colin O’Flynn
56: PICKING UP MIXED SIGNALS: A Digital Amplifier for TVs: Using a Teensy 4.1, By Brian Millier
68: FROM THE BENCH: Build Your Own Battery Monitor: Counting Coulombs, By Jeff Bachiochi
75: Product News
78: Test Your EQ
79: The Future of Smart Cities: 5G and Intelligent Transportation Tech Fuel Smart City Advances, By Steve Mazur

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.