In this issue

6: Sports Wearable Uses ANT+ Protocol: The tempANT+ Project, By Carlo Tauraso
15: Build a Robotic Arm with Linear Actuators: Threaded-Rod Approach, By Alexandru Dumitrache
22: A Review: Nora Flight Controller and XunWing X4 Quadcopter: Drone Deep Dive, By Raul Alvarez-Torrico
32: Build an Autonomous Mapping Rover: The NanoBot Project, By Dhairya Parikh
42: MCU Vendors Lock In New Security Solutions: Device Defense In-Depth, By Jeff Child
49: Test and Measurement Tools Push Performance Barriers: Speedy Solutions, By Jeff Child
54: DATASHEET: Tiny Embedded Boards: Petite but Powerful, By Jeff Child
58: EMBEDDED IN THIN SLICES: FreeRTOS (Part 7): FreeRTOS, TCP and the Internet, By Bob Japenga
63: THE DARKER SIDE: Playing with I-V Curves: Plot-Powered Insights, By Robert Lacoste
68: FROM THE BENCH: Refrigerator Repair Project: Using Espressif’s ESP32 MCU, By Jeff Bachiochi
75: Product News
78: Test Your EQ
79: The Future of Full Lifecycle Security: DevSecOps and Full Lifecycle Security, By Arlen Baker

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.