In this issue

6: Home Air Quality Monitoring (Part 2): The Android Application, By Raul Alvarez-Torrico
18: Build a Maze Generator and Game: Using a PIC32 MCU, By Kyle Infantino, Jack Brzozowski and Dilan Lakhani
25: Microprogramming Choices Explained (Part 2): Microprogrammable Machines, By Wolfgang Matthes
36: Build a Voice-Controlled Spider Robot: The SDY-DER Project, By Arijit Das
42: Multiple Layers of Technology Enable Smart Cities: Connectivity and Collaboration, By Jeff Child
49: Rugged SBCs Suit Up for Tough Duties: Ready for Rough Stuff, By Jeff Child
54: DATASHEET: COMe and COM-HPC Boards: Modular Compute Muscle, By Jeff Child
58: FROM THE BENCH: Build an IR-Based LEGO Train Controller (Part 2): IR Receiving End, By Jeff Bachiochi
64: THE DARKER SIDE: RF Location Techniques: Methods and Measurements, By Robert Lacoste
70: EMBEDDED IN THIN SLICES: Lehman’s Laws of Software Evolution: Rules to Code By, By Bob Japenga
75: Product News
78: Test Your EQ
79: The Future of Embedded FPGAs: eFPGA: The Proof is in the Tape Out, By Andy Jaros

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.