成人国产综合一区二区在线观看_精品亚洲Ⅴa在线无码播放_91夜色app在线下载_高清综合欧美亚洲_免费黄色视频app_JAPANESE少妇出轨内射_免费+无码+国产_日本va中文字幕波多野结衣_欧美一级人与禽亚洲精品_日韩欧美精品一区二区在线观看

Product Parameters

1. Onboard RTC battery holder

2. Onboard power status indicator light

3. Working voltage: DC 5V

4. Reserve multiple plugin pads for easy secondary development

Product Introduction

This product is an SD card expansion board used for storing data and providing data transfer protection. The module is equipped with a four channel buffer with three state output control to control data writing and output. When the chip enable terminal is equal to 0, it can be read and written normally; When the enable terminal is equal to 1, it is in a disabled state, and the output terminal is in a high impedance state. In order to ensure stable communication between the product and other modules, the module is equipped with a real-time clock IC and a dedicated RTC battery holder. The product is available in two types: with and without batteries.

There is a physical reset button on the board; SDS slotting; The power indicator light allows users to easily observe the current power status of the module, and two undefined LED lights (L1, L2) are reserved for users to design according to their own needs.

Product Function

Product Size

Product Show

Payment&Transportation

Official Certificate&Certificate

Multiple product supply

Company office environment

Warehouse Real Shot

Standard packaging

We also provide ：