sparkfun RV-8803 - User Manual

Real Time Clock Module - RV-8803 (Qwiic) Hookup Guide
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Introduction
The Real Time Clock Module - RV-8803 (Qwiic) is a Qwiic-enabled breakout board for the RV-8803 RTC module. The RV-8803 boasts some impressive
features including a temperature compensated crystal, extremely precise time-keeping, low power consumption, time stamp event input along with a
user-programmable timing offset value. It even has a programmable Clock Output to control precise timing for peripheral devices. The RV-8803 also has
an improved I C interface compared to the RV-1805 RTC that removes the need to sequence commands/writes to the device. This is particularly helpful if
you are not using our Arduino Library to control the RTC.
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SparkFun Real Time Clock Module - RV-8803 (Qwiic)
 BOB-16281

sparkfun RV-8803 Specifications

General

Brand	sparkfun
Model	RV-8803
Category	Motherboard
Language	English

Summary

Hardware Details

Qwiic and I2 C Interface

Hardware Assembly

RV-8803 Arduino Library

Library Functions

Lists and describes all available functions for device setup and data retrieval.

Device Setup & Settings

How to initialize and configure the RTC module using library functions.

Reading from the RTC

Functions to retrieve current time, date, and timestamp data.

Alarm & Interrupt Functionality

External Event Interrupt

Countdown Interrupt

Periodic Interrupt

Alarm Interrupt

Arduino Examples

Practical examples demonstrating library usage.

Example 1: Set Time

How to set the RTC's internal clock using compiler or custom time.

Example 2: Print Time

Requesting and displaying time data from the RTC via serial monitor.

Example 3: Set Hundredths

Example 4: Interrupts

Example 5: Timestamp

Example 6: Fine Tuning

Calibrating the RV-8803 oscillator for improved time accuracy.