In this issue

4: Controller for a Cifra 5 (Digit5) Flip Clock: Using a PIC16F84A MCU, an L293D Dual H-Bridge Motor Driver, and a DS3231 Real-Time Clock, By Carlo Tauraso
13: The Lego Hat: Built with a Raspberry Pi Zero and Lots of Glue, By Chris Cantrell
18: Real-Time Automatic Music Transcriber: Using a Raspberry Pi RP2040, By Chris Schiff, Jacob Lashin, and Romano Tio
24: A Versatile Assistive Technology Interface, By Matthew Oppenheim and Steve Hodges
30: TECHNOLOGY FEATURE: MCU Development Tools, By Michael Lynes
36: DATASHEET: Power/Battery Management ICs: A Wide Array of Solutions for Your Embedded System, By Sam Wallace
40: PICKING UP MIXED SIGNALS: InPlay’s NanoBeacon: An Ultra-Low Power BLE Beacon That Needs Almost No Programming Effort, By Brian Millier
52: FROM THE BENCH: Local Isolation: Using the Sun’s Energy, By Jeff Bachiochi
63: TECH THE FUTURE: The Future of Design Flexibility: Five Ways to Make Your Designs Future-Ready, By James Jaksich and Camron Chilton

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.