In this issue

Issue #359
June 2020
Industrial IoT System Solutions
6: Build a Multi-Purpose GPS Tracker: BLE MCU-Based Design, By Carlo Tauraso
14: Retro-Computing Takes to the Cloud: Old Meets New, By Todd Wade
22: Build a Robotic S'more Maker: Using Computer Vision and RPi, By Katie Bradford and Jared Gallina
30: 4-20mA Transmitter Test Board Project: Programmable 2-Wire 4-20mA Design, By Mandar Bagul
40: Systems Focus Tops Industrial IoT Trends: Factories and Frameworks, By Jeff Child
48: Sensor Advances Push Performance Barriers: Meeting IoT-Era Demands, By Jeff Child
53: DATASHEET: AC-DC Power Supplies: Tailored Solutions, By Jeff Child
56: EMBEDDED IN THIN SLICES: LoRa (Part 5): A MachineQ Example, By Bob Japenga
60: THE DARKER SIDE: A Look at Homemade TCXOs (Part 1): Crystal Crafting, By Robert Lacoste
67: FROM THE BENCH: Measuring Soil Moisture with ADCs: Capacitors as Garden Tools, By Jeff Bachiochi
74: Product News
78: Test Your EQ
79: The Future of Smart City Lighting: Smart Poles: A Thermal Management Challenge, By Tom Gregory

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.