Hardkernel PCF8563 RTC Shield
Keep Your Single-Board Computer Perfectly on Time
Never lose track of time again, even when your system goes offline. The Hardkernel PCF8563 RTC Shield is an essential add-on designed specifically for single-board computers—such as the ODROID series—that lack an integrated hardware clock. By plugging directly into your board's GPIO header, this compact module provides a reliable, dedicated Real-Time Clock (RTC). It ensures your operating system maintains the precise date and time during reboots, power outages, or extended periods without an internet connection, making it indispensable for offline data logging, automation, and remote deployments.
Engineered for efficiency and long-term autonomy, the shield communicates seamlessly using the standard I2C protocol without draining your primary system resources. It features a rugged, top-mounted metal holder designed for a standard CR2032 coin-cell battery. This clever backup system keeps the internal PCF8563 chip ticking continuously for up to 2 to 3 years without external power. Simple to install and highly reliable, this shield is the perfect set-it-and-forget-it upgrade to bring robust time-keeping capabilities to your next hardware project.