Push Button On-Off Emulator - Cheap Upgrade for Your Arduino Project

Learn how to implement a graceful shutdown feature for microcontroller projects without using an LTC2954 chip. This 27-minute tutorial demonstrates modifying an existing auto-shutoff circuit with just a few additional components to allow push-button on/off control and emergency shutdown capabilities. Explore the circuit modifications, interrupt-based code implementation, and component options. Compare the original and modified circuits, understand the role of small signal diodes, and see how to service shutdown requests via microcontroller interrupts. Gain practical knowledge to enhance Arduino projects with professional power management features using cost-effective methods.