如何使用node.js从蓝牙设备接收数据 [英] how to receive data from bluetooth device using node.js

问题描述

我是javascript和node.js的新手。目前正在从事医疗项目。首先，我将解释我的工作。我必须从蓝牙设备接收数据（正常血压率，脉搏率）并使用node.js在Web应用程序中显示读数。我不知道如何从蓝牙设备（病人监护仪）接收数据你们可以建议我阅读一些博客或书籍。在此先感谢。

I am new to javascript and node.js. Currently am working in medical project. First i will explain my work. I have to receive data from Bluetooth device (normal BP rate ,pulse rate ) and display the readings in the web app using node.js. I don't know how to receive data from Bluetooth device (patient monitor machine) can you guys suggest me some blogs or books to read. Thanks in advance.

推荐答案

您可以使用node-bluetooth分别从设备发送数据和从设备接收数据。这是一个示例代码： -

You can use "node-bluetooth" to send and receive data from and to a device respectively. This is a sample code:-

const bluetooth = require('node-bluetooth');

// create bluetooth device instance

const device = new bluetooth.DeviceINQ();

device
    .on('finished', console.log.bind(console, 'finished'))
    .on('found', function found(address, name) {
        console.log('Found: ' + address + ' with name ' + name);

        device.findSerialPortChannel(address, function(channel) {
            console.log('Found RFCOMM channel for serial port on %s: ', name, channel);

            // make bluetooth connect to remote device
            bluetooth.connect(address, channel, function(err, connection) {
                if (err) return console.error(err);
                connection.write(new Buffer('Hello!', 'utf-8'));
            });

        });

        // make bluetooth connect to remote device
        bluetooth.connect(address, channel, function(err, connection) {
            if (err) return console.error(err);

            connection.on('data', (buffer) => {
                console.log('received message:', buffer.toString());
            });

            connection.write(new Buffer('Hello!', 'utf-8'));
        });
    }).inquire();

它会扫描device变量中给出的设备名称。

It scans for the device name given in "device" variable.

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