mirror of
https://github.com/m5stack/M5AtomU.git
synced 2026-05-20 10:38:52 -07:00
Sean Kwok
40 lines
1.4 KiB
Arduino
40 lines
1.4 KiB
Arduino
/*
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*******************************************************************************
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* Copyright (c) 2021 by M5Stack
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* Equipped with Atom-Lite/Matrix sample source code
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* 配套 Atom-Lite/Matrix 示例源代码
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* Visit the website for more information：https://docs.m5stack.com/en/products
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* 获取更多资料请访问：https://docs.m5stack.com/zh_CN/products
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*
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* describe：CardKB. 键盘
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* date：2021/8/11
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*******************************************************************************
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Please connect to Port,Read the characters entered by CardKB Unit and display
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them on the Serial. 请连接端口,读取CardKB Unit输入的字符并显示在串口上。
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*/
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#include <M5Atom.h>
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#define CARDKB_ADDR \
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0x5F // Define the I2C address of CardKB. 定义CardKB的I2C地址
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void setup() {
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M5.begin(); // Init M5Atom. 初始化 M5Atom
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Serial.printf("IIC Address: 0x5F\n");
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Serial.printf(">>");
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Wire.begin(26, 32); // Initialize pin 26,32. 初始化26,32引脚
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}
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void loop() {
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Wire.requestFrom(
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CARDKB_ADDR,
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1); // Request 1 byte from the slave device. 向从设备请求1字节
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while (
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Wire.available()) // If received data is detected. 如果检测到收到数据
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{
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char c = Wire.read(); // Store the received data. 将接收到的数据存储
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if (c != 0) {
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Serial.printf("%c", c);
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}
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}
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}
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