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        <dc:date>2025-10-11T02:55:35+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>ocrobot:modules:0.56_4-digit_7-segment_display_i2c_backpack</title>
        <link>https://wiki.ocrobot.com/doku.php?id=ocrobot:modules:0.56_4-digit_7-segment_display_i2c_backpack&amp;rev=1760151335&amp;do=diff</link>
        <description>0.56英寸 IIC四位数码管模块

产品图片






示例程序

如何显示12.34



#include &lt;Wire.h&gt; // Enable this line if using Arduino Uno, Mega, etc.
#include &quot;Adafruit_LEDBackpack.h&quot;
#include &quot;Adafruit_GFX.h&quot;

Adafruit_7segment matrix = Adafruit_7segment();

void setup() {
#ifndef __AVR_ATtiny85__
  Serial.begin(9600);
  Serial.println(&quot;7 Segment Backpack Test&quot;);
#endif
  matrix.begin(0x70);
}

void loop() {
  matrix.print(12.34);
  matrix.writeDisplay();
  delay(500);
}</description>
    </item>
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        <dc:date>2025-10-11T02:55:35+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>ocrobot:modules:0.96oled12864</title>
        <link>https://wiki.ocrobot.com/doku.php?id=ocrobot:modules:0.96oled12864&amp;rev=1760151335&amp;do=diff</link>
        <description>0.96寸 OLED 12864模块

介绍

OLDE 12864模块是精心设计的基于IIC通讯总线的OLED自发光显示屏，分辨率128*64像素，亮度高显示稳定，功耗低(无显示时功耗极低)，支持3.3-5v双电源，接线简单，方便易用</description>
    </item>
    <item rdf:about="https://wiki.ocrobot.com/doku.php?id=ocrobot:modules:1.2_8x8_bicolor_led_i2c_backpack&amp;rev=1760151335&amp;do=diff">
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        <dc:date>2025-10-11T02:55:35+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>ocrobot:modules:1.2_8x8_bicolor_led_i2c_backpack</title>
        <link>https://wiki.ocrobot.com/doku.php?id=ocrobot:modules:1.2_8x8_bicolor_led_i2c_backpack&amp;rev=1760151335&amp;do=diff</link>
        <description>返回

OCOROBOT 8x8 I2C点阵（红绿双色）

这是8×8 I2C点阵（红绿双色）模块介绍页面

尺寸：3.2×3.2cm

----------

引言

8×8 I2C点阵（红绿双色）模块是一个基于I2C通讯协议的8×8点阵LED显示器，采用Adafruit LED驱动库解决方案驱动</description>
    </item>
    <item rdf:about="https://wiki.ocrobot.com/doku.php?id=ocrobot:modules:1.2_8x8_led_i2c_backpack&amp;rev=1760151335&amp;do=diff">
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        <dc:date>2025-10-11T02:55:35+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>ocrobot:modules:1.2_8x8_led_i2c_backpack</title>
        <link>https://wiki.ocrobot.com/doku.php?id=ocrobot:modules:1.2_8x8_led_i2c_backpack&amp;rev=1760151335&amp;do=diff</link>
        <description>返回

OCROBOT 8x8 I2C点阵（红色）

这是8×8 I2C点阵（红色）模块介绍页面

----------

引言

8×8 I2C点阵（红色）模块是一个基于I2C通讯协议的8×8点阵LED显示器，采用Adafruit LED驱动库解决方案驱动

----------</description>
    </item>
    <item rdf:about="https://wiki.ocrobot.com/doku.php?id=ocrobot:modules:cp2012&amp;rev=1760151335&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2025-10-11T02:55:35+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>ocrobot:modules:cp2012</title>
        <link>https://wiki.ocrobot.com/doku.php?id=ocrobot:modules:cp2012&amp;rev=1760151335&amp;do=diff</link>
        <description>CP2012 USB转TTL电平串口(UART)模块

----------

常用的USB转串口模块，因为单片机系统目前推荐使用的是TTL电平（3.3V-5V）UART串口，而非RS232电平(12V),所以我们普遍推荐使用usb转换模块

参数性能
供电方式</description>
    </item>
    <item rdf:about="https://wiki.ocrobot.com/doku.php?id=ocrobot:modules:dht11&amp;rev=1760151335&amp;do=diff">
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        <dc:date>2025-10-11T02:55:35+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>ocrobot:modules:dht11</title>
        <link>https://wiki.ocrobot.com/doku.php?id=ocrobot:modules:dht11&amp;rev=1760151335&amp;do=diff</link>
        <description>返回

DHT11温度传感器

这是DHT11温湿度传感器介绍页面

----------

引言

DHT11温湿度传感器是一款廉价的温度湿度传感器，使用单总线通讯协议，使用方便，arduino驱动方案推荐使用DHT-sensor-library驱动库</description>
    </item>
    <item rdf:about="https://wiki.ocrobot.com/doku.php?id=ocrobot:modules:enc28j60&amp;rev=1760151335&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2025-10-11T02:55:35+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>ocrobot:modules:enc28j60</title>
        <link>https://wiki.ocrobot.com/doku.php?id=ocrobot:modules:enc28j60&amp;rev=1760151335&amp;do=diff</link>
        <description>ENC28J60网络扩展板

简介

一款基于ENC28J60芯片的SPI总线以太网转换模块。

性能参数

----------
总线接口SPI供电电压 3.3V(板载稳压器最大支持9V输入)通讯电平耐受5V带宽支持10Mbit/100Mbit(实际带宽受限于SPI总线通讯带宽)</description>
    </item>
    <item rdf:about="https://wiki.ocrobot.com/doku.php?id=ocrobot:modules:iic_spi_1602&amp;rev=1760151335&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2025-10-11T02:55:35+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>ocrobot:modules:iic_spi_1602</title>
        <link>https://wiki.ocrobot.com/doku.php?id=ocrobot:modules:iic_spi_1602&amp;rev=1760151335&amp;do=diff</link>
        <description>I2C/SPI 1602液晶显示屏

介绍

OCROBOT I2C/SPI 1602液晶显示屏具有链接简单，实用方便等优点，充分利用总线优势，节约单片机IO，减少出错概率

参数

显示内容：英文字符 标点  数字

显示范围 16字*2</description>
    </item>
    <item rdf:about="https://wiki.ocrobot.com/doku.php?id=ocrobot:modules:l298p&amp;rev=1760151335&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2025-10-11T02:55:35+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>ocrobot:modules:l298p</title>
        <link>https://wiki.ocrobot.com/doku.php?id=ocrobot:modules:l298p&amp;rev=1760151335&amp;do=diff</link>
        <description>L298P 电机驱动板

介绍

L298P电机驱动板介绍
OCROBOT L298P基于arduino的大功率电动机驱动扩展盾,使用完整的光电电气隔离设计,上扩展盾与下所有光耦合隔离主控板,电源部分分别独立的电源,两路电机驱动,安全可靠,抗干扰能力强。</description>
    </item>
    <item rdf:about="https://wiki.ocrobot.com/doku.php?id=ocrobot:modules:lm75&amp;rev=1760151335&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2025-10-11T02:55:35+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>ocrobot:modules:lm75</title>
        <link>https://wiki.ocrobot.com/doku.php?id=ocrobot:modules:lm75&amp;rev=1760151335&amp;do=diff</link>
        <description>LM75温度监控模块

介绍

----------

OCROBOT LM75温度监控模块，是一款较高精度的低功耗温度传感器模块，其特有的监控功能，可以将温度的上限及下限配置进传感器，传感器自动监测并提供报警功能，可以释放处理器的有限资源，并不需要处理器实时对温度进行监视。</description>
    </item>
    <item rdf:about="https://wiki.ocrobot.com/doku.php?id=ocrobot:modules:max4466&amp;rev=1760151335&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2025-10-11T02:55:35+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>ocrobot:modules:max4466</title>
        <link>https://wiki.ocrobot.com/doku.php?id=ocrobot:modules:max4466&amp;rev=1760151335&amp;do=diff</link>
        <description>麦克风模块

介绍

这是一个精心设计过的麦克风模块，配备了一个20-16KHz的驻极体麦克风，使用了专用麦克风放大器，具有很优异的电源噪声抑制，几乎没有什么噪音或者沙沙声。

模块上有一个电位器，它用来调节增益幅度（灵敏度）。</description>
    </item>
    <item rdf:about="https://wiki.ocrobot.com/doku.php?id=ocrobot:modules:mb85rc16v&amp;rev=1760151335&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2025-10-11T02:55:35+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>ocrobot:modules:mb85rc16v</title>
        <link>https://wiki.ocrobot.com/doku.php?id=ocrobot:modules:mb85rc16v&amp;rev=1760151335&amp;do=diff</link>
        <description>MB85RC16V FRAM铁电存储器模块

介绍

OCROBOT MB85RC16V 铁电存储器模块，是一款存储器模块，具有2K字节容量，每个字节具有一万亿次（ 10^12次）读写寿命

参数

模块属性：FRAM 存储器

数据容量：16Kbit（2Kbyte）</description>
    </item>
    <item rdf:about="https://wiki.ocrobot.com/doku.php?id=ocrobot:modules:mcp4725&amp;rev=1760151335&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2025-10-11T02:55:35+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>ocrobot:modules:mcp4725</title>
        <link>https://wiki.ocrobot.com/doku.php?id=ocrobot:modules:mcp4725&amp;rev=1760151335&amp;do=diff</link>
        <description>MCP4725 DAC模块

介绍

OCROBOT MCP4725 DAC模块是一款 I2C总线的数字转模拟数据模块，可以让arduino等控制板，提供可调电压输出，使用简单方便。

参数

模块属性：DAC(数字电压调节器)

通讯总线类型：I2C</description>
    </item>
    <item rdf:about="https://wiki.ocrobot.com/doku.php?id=ocrobot:modules:opto-isolated_transistor_drivers&amp;rev=1760151335&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2025-10-11T02:55:35+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>ocrobot:modules:opto-isolated_transistor_drivers</title>
        <link>https://wiki.ocrobot.com/doku.php?id=ocrobot:modules:opto-isolated_transistor_drivers&amp;rev=1760151335&amp;do=diff</link>
        <description>光隔离晶体管驱动器

介绍

OCROBOT 光隔离晶体管驱动器模块是一款IO口输出功率放大器，为Arduino驱动大功率（卤素灯,LED灯条，电机等）设备而设计

参数

模块属性：功率驱动器

信号类型：开关量</description>
    </item>
    <item rdf:about="https://wiki.ocrobot.com/doku.php?id=ocrobot:modules:pcf8563&amp;rev=1760151335&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2025-10-11T02:55:35+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>ocrobot:modules:pcf8563</title>
        <link>https://wiki.ocrobot.com/doku.php?id=ocrobot:modules:pcf8563&amp;rev=1760151335&amp;do=diff</link>
        <description>PCF8563实时时钟（RTC）模块

OCROBOT pcf8563是一款设计非常优秀的时间源模块，提供直接可以读取的年月日时间分钟秒，并且可以提供32.768khz 1024hz 1Hz的时钟信号，采用高精度的爱普生晶体，极其优秀的极低功耗。</description>
    </item>
    <item rdf:about="https://wiki.ocrobot.com/doku.php?id=ocrobot:modules:seed&amp;rev=1760151335&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2025-10-11T02:55:35+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>ocrobot:modules:seed</title>
        <link>https://wiki.ocrobot.com/doku.php?id=ocrobot:modules:seed&amp;rev=1760151335&amp;do=diff</link>
        <description>OCROBOT SEED （WIFI模块）

概况

OCROBOT SEED 是基于ESP8266芯片平台的一款超低成本的串口WIFI解决方案模块。



参数

----------

	*  ￼802.11 b/g/n 协议
	*  Wi-Fi 2.4 GHz, 支持WPA/WPA2
	*  具有10-bit ADC
	*  具有TCP/IP 协议集 (ipv4)</description>
    </item>
    <item rdf:about="https://wiki.ocrobot.com/doku.php?id=ocrobot:modules:txs0108&amp;rev=1760151335&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2025-10-11T02:55:35+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>ocrobot:modules:txs0108</title>
        <link>https://wiki.ocrobot.com/doku.php?id=ocrobot:modules:txs0108&amp;rev=1760151335&amp;do=diff</link>
        <description>TXS0108电平转换模块

参考图片</description>
    </item>
    <item rdf:about="https://wiki.ocrobot.com/doku.php?id=ocrobot:modules:usbtinyisp&amp;rev=1760151335&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2025-10-11T02:55:35+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>ocrobot:modules:usbtinyisp</title>
        <link>https://wiki.ocrobot.com/doku.php?id=ocrobot:modules:usbtinyisp&amp;rev=1760151335&amp;do=diff</link>
        <description>USBtinyISP

USBtinyISP是一个简单的USB AVR编程器。它售价低廉，与AVRDUDE配套使用工作良好，同时具有6和10针标准ISP接口。

使用这个编程器配合AVRDUDE使用，可以给各种AVRDUDE支持的“串行”下载芯片进行编程烧录。但是不能用作JTAG与高压编程。</description>
    </item>
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