Introduction

@cutos/device-electronic-scale is a JavaScript library that provides a unified interface for accessing electronic scale devices. Developers can use this interface to receive weight data.

Electronic Scale SDK

Installation

npm install @cutos/core

npm install @cutos/device-electronic-scale

Import dependencies

import {CoreAPI} from '@cutos/core';
import {DeviceElectronicScale} from '@cutos/device-electronic-scale';

DeviceElectronicScale

Constructor, create electronic scale device instance

let devElectronicScale = new DeviceElectronicScale(name);

• name: Electronic Scale device name

Example:

devElectronicScale = new DeviceElectronicScale('device-electronic-scale');

DeviceElectronicScale.init

Electronic Scale device initialization

devElectronicScale.init(callback);

• callback: callback function

Example:

devElectronicScale.init((result, error) => {
	if (!error) {
		console.log('onDeviceCreate', result)
	} else {
		console.log(error)
	}
});

DeviceElectronicScale.connect

Connect Electronic Scale

devElectronicScale.connect(path, callback);

• path: electronic scale port
• callback: callback function

Example:

 devElectronicScale.connect('/ttyS1', (response) => {
	console.log(response)
});

• Return response example:

{
  "status": true,
  "msg": "already connected"
}

DeviceElectronicScale.onData

listen data from the driver

devElectronicScale.onData(listener);

• listener: data process function

• Return data example:

{
  "data": 2.30
}