AZ02 RTC&microSD

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Read this official Leafony page and explain its key points in English. For hardware help, first ask for a photo or the installed leaf models, assembly and power sources, then the goal and tools. Clarify which LED or display changed and whether a cable or leaf was replaced. Do not equate an unseen reset button with an absent one, or I2C acknowledgement with a working display. Verify specifications against sources; distinguish observations from hypotheses. Follow a redirect to its destination; if unreadable, ask for the relevant text instead of guessing.

Page: AZ02 RTC&microSD

URL: https://docs.leafony.com/en/leaf/others/az02/

Description / headings (excerpt): Features / Specification / Block diagram / Pinassign

Table of contents

Features

Read the date and time, and save or read data on a microSD card with this leaf. It includes an NXP PCF8523TK real-time clock (RTC) and a microSD card slot. The RTC can also send alarm and timer interrupts to the MCU. The RTC uses I2C, and the microSD card uses SPI.

Specification

Item	Description
Part number	PCF8523TK
Type	Real-Time Clock (RTC) and calendar
Interrupt	Alarm and timer
Quartz crystal unit	FC-12M 32.768000kHz 7.0 +20.0-20.0
Interfaces	I2C(Address: 0x68)
Dimension	W23×D20.5×H4.7mm

Block diagram

Pinassign

Sample App

Library

Libraries are available for this leaf. Please install and use the necessary libraries at Environment.

Document

Revision history

Rev A1.0: First edition, January 2020