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nodeusbscale
Advanced tools
Node.js+Linux bindings for several USB scales (Pitney Bowes, Dymo, etc.)
Node.js+Linux (HID) bindings for several USB scales (Pitney Bowes, Dymo, etc.)
Tested with:
Data packets are in the following format:
{
'weight': xxxxxx,
'balanced': <true/false>
}
#!/usr/bin/env node
var UsbScale = require('nodeusbscale');
var dev = UsbScale.create();
dev.open( '/dev/usb/hiddev0', function(obj, err) {
if( err ) {
console.log("UsbScale: Failed to open device: "+err);
return false;
}
dev['data'] = function(data) {
console.log("UsbScale event: "+JSON.stringify(data, null, 2));
};
});
// Hack to prevent Node.js from exiting, sorry.
var http = require('http');
var httpServer = http.createServer(function(){});
httpServer.listen(8084);
console.log("Listening for keyboard input...");
Returns an initialised usbscale object.
Open an usbscale device, associate it to this object, and fire the provided callback upon completion.
The parameters passed to the provided callback function are usbscaleObject which is a reference to the usbscale object, and error which will be an error string in the case of an error, or undefined on success.
A virtual method of the usbscaleObject. Reimplement it to handle usbscaleEvents. It can be ignored, but if you ignore it, you might as well not use this module at all.
FAQs
Node.js+Linux bindings for several USB scales (Pitney Bowes, Dymo, etc.)
The npm package nodeusbscale receives a total of 7 weekly downloads. As such, nodeusbscale popularity was classified as not popular.
We found that nodeusbscale demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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