In this issue

Energy Harvesting Approaches
6: 4-20 mA Current Loop Devices: An SBC-Based Project, By Derek Hildreth
14: Self-Organizing Wi-Fi Mesh Network: Using PIC32 MCUs, By Daniel Weber and Michaelangelo Rodriguez
20: Designing Manufacturing Test Systems: Quality and Cost, By Nishant Mittal
24: Multi-Key Electronic Flute: Sensors and Synthesis, By Trisha Ray, Parth Bhatt and Qing Yu
30: Chip Solutions Tackle the Energy Harvesting Challenge: Self-Sufficiency at the IoT Edge, By Jeff Child
36: Analog ICs Feed Needs of Industrial Systems: Advances for Automation, By Jeff Child
40: PRODUCT FOCUS: Panel PCs: HMI Intelligence, By Jeff Child
45: EMBEDDED SYSTEM ESSENTIALS: Embedded System Security Live: Coverage of Two Security Events, By Colin O’Flynn
50: PICKING UP MIXED SIGNALS: Bluetooth-Enabled ECG Monitor: Using the Cypress PSoC 6 MCU, By Brian Millier
61: FROM THE BENCH: MQ Telemetry Transport (Part 2): Bringing it All Back Home, By Jeff Bachiochi
70: THE CONSUMMATE ENGINEER: Semiconductor Fundamentals (Part 3): Transistor Topologies, By George Novacek
74: Product News
78: Test Your EQ
79: The Future of Smart Homes: The Essentials of Smart Home Security, By Michelle Tate

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.