DataField and BLE devices.

Hello,

What is the right way to specify a BLE device for a Data Field?

Now I can find the very first available with defined service. I can read it from DF and show its data. But how can I specify it in case I have a couple of similar devices? I'd not like to use RSSI and connect the nearest one.

Thanks.

Top Replies

jim_m_58 over 5 years ago +1

There are two ways, but both are only available on devices with CIQ 3.2.x

1) the first time the app runs, only have one device in range. Let it scan, and when you have connected, save the scan result in…
jim_m_58 over 5 years ago in reply to Aleks +1

You can't get the BLE address for security reasons. I asked the same thing when BLE was first introduced.

BTW, #1 is much faster than #2, and you avoid users having to set the MAC address, with typos…

All Replies

0 jim_m_58 over 5 years ago

There are two ways, but both are only available on devices with CIQ 3.2.x

1) the first time the app runs, only have one device in range. Let it scan, and when you have connected, save the scan result in Application.Storage.

After that if there is a saved scan result, don't scan. Just use the saved scan result to pair/connect,

This is the way I've been doing it.

2) using app settings, have the user set the BLE Mac address of the correct device.

Then when scanning, use ScanResult.hasAddess() to look for that device.

developer.garmin.com/.../ScanResult.html

0 Aleks over 5 years ago in reply to jim_m_58

> 1)

Yes, this method is already known.

> ScanResult.hasAddess()

Hm. Good idea. Why I have not remembered it...

BTW why there is not some Device.getAddress() for the BLE?

Thank you!

0 jim_m_58 over 5 years ago in reply to Aleks

You can't get the BLE address for security reasons. I asked the same thing when BLE was first introduced.

BTW, #1 is much faster than #2, and you avoid users having to set the MAC address, with typos, missing parts, etc.

0 Aleks over 5 years ago in reply to jim_m_58

> You can't get the BLE address for security reasons.

Wow. Interesting.

> BTW, #1 is much faster than

Yes I understand it. For device supporting 3.2 I'll do this. I'd like to support 3.1 as well, because I have "fenix 5 plus" available and looks like it supports only 3.1

0 jim_m_58 over 5 years ago in reply to Aleks

The f5+ has 3.2, It doesn't show that it in the sim right now

0 Aleks over 5 years ago in reply to jim_m_58

Good news then.

0 jim_m_58 over 5 years ago in reply to Aleks

In your app, add some smarts. If monkeyVersion is greater than or equal to 3.2.0, or a has for hasAddress.