[help] Scan unique ids only

[duceduc]

Hello. The below code will scan and display any devices it finds within xx seconds. This will include duplicates. How to display only unique ids'. Thank you.

// Load the node-switchbot and get a `Switchbot` constructor object
const Switchbot = require('node-switchbot');
// Create an `Switchbot` object
let switchbot = new Switchbot();

// Start to monitor advertisement packets
switchbot.startScan().then(() => {
  // Set an event hander
  switchbot.onadvertisement = (ad) => {
    console.log(JSON.stringify(ad, null, '  '));
  };
  // Wait 10 seconds
  return switchbot.wait(10000);
}).then(() => {
  // Stop to monitor
  switchbot.stopScan();
  process.exit();
});

[dnicolson]

I'm not sure it would make sense for this to be part of the module. You can achieve the desired functionality quite easily:

const Switchbot = require('node-switchbot');
const switchbot = new Switchbot();
const foundAddresses = [];

switchbot.startScan().then(() => {
  switchbot.onadvertisement = ad => {
    if (foundAddresses.indexOf(ad.address) === -1) {
      console.log(ad);
      foundAddresses.push(ad.address);
    }
  };
  return switchbot.wait(10000);
}).then(() => {
  switchbot.stopScan();
  process.exit();
});

[futomi]

@duceduc, startScan() method reports all advertising packets. The purpose of this method is monitoring status of device.

[duceduc]

Thanks for the write-up. I am not sure how to go about it, but I want to get details for all the devices I have by creating a rest sensor (Home Assistant) from this json list. So far, I have save it to a file and able to view it via locally on web. Can the code be further tweak to sort it in a fix order? Perhaps by address?

[futomi]

Perhaps by address?

Yes, you should use the value of the address. The value of the address is a MAC address which is globally unique.

[duceduc]

If you guys have any pointers as to how to sort the unique list, that would be awesome. my js knowledge is very limited. Thanks.

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