Respiration Rate on Fenix 7x for watchface

Hi there, I have a question regarding the respiration rate on a fenix7x device.

From what I gathered so far:

Here ist written, that the fenix7x is supported: respirationRate

var rr = ActivityMonitor.getInfo().respirationRate;

But that code though results in this error:

> Executing task in folder digit2: /Users/thomas/bin/zulu8.60.0.21-ca-jdk8.0.322-macosx_aarch64/bin/java -Xms1g -Dfile.encoding=UTF-8 -Dapple.awt.UIElement=true -jar /Users/thomas/Library/Application Support/Garmin/ConnectIQ/Sdks/connectiq-sdk-mac-4.0.10-2022-02-08-277ce4444/bin/monkeybrains.jar -o bin/digit2.prg -f /Users/thomas/Documents/Garmin/digit2/digit2/monkey.jungle -y /Users/thomas/Documents/Garmin/IQ-dev/developer_key -d fenix7x_sim -w <

ERROR: fenix7x: /Users/thomas/Documents/Garmin/digit2/digit2/source/digit2View.mc:45: Undefined symbol "respirationRate" detected.

Any ideas?

What am I doing wrong?

Shent-Aurkhan (SHN) over 4 years ago

hi, does your devices is uptodate in the SDK manager?

you should do also an has check to avoid crash on device which does not have it

jim_m_58 over 4 years ago in reply to Shent-Aurkhan (SHN)

Yes, make sure devices for the sim are up to date, use the 4.1.2 SDK, and for any System 5 APIs, use "has". Not all devices in the sim support System 5, and not all production FW for the real devices support System 5

InigoTolosa over 4 years ago

This code is working fine for me on Fenix 7x. It returns 10 when it runs in the simulator

AlphaTom over 4 years ago in reply to jim_m_58

Thank you for the suggestions. I rebuild the app with the 4.1.2 SDK and now it runs in the simulator but on the watch I get this error (from the log):

Do I need a more recent firmware? It looks like everything is up to date...

---
Error: Symbol Not Found Error
Details: "Could not find symbol '00800c97'"
Time: 2022-04-24T09:31:23Z
Part-Number: xyz
Firmware-Version: '7.35'
Language-Code: eng
ConnectIQ-Version: 4.1.2
Filename: digit2
Appname: digit2
Stack:
- pc: 0x100001d4
---

jim_m_58 over 4 years ago in reply to AlphaTom

Yes. System 5 came in the 8.13 beta FW (current beta is 8.14) This is why you want to do a "has" check for the function as you don't want you app to crash on devices with 7.35. I wouldn't consider putting it in the app store without the check.

InigoTolosa over 4 years ago in reply to AlphaTom

You can adapt this code to your app in order to avoid crash

	_currentRespirationRate = null;
	if (Toybox has :ActivityMonitor) {
		var am_info = ActivityMonitor.getInfo();
		if(am_info has :respirationRate) {
			_currentRespirationRate=am_info.respirationRate.toNumber();
		}
	}

jim_m_58 over 4 years ago in reply to InigoTolosa

It's a bit more efficient battery wise to do the the "has" in initialize() and set a boolean like "hasResp". "has" is a dictionary lookup, and never changes when an app runs, and checking a boolean is cheaper but does cost the memory of a boolean

InigoTolosa over 4 years ago in reply to jim_m_58

You are right Jim, better to check has once in initialize()

AlphaTom over 4 years ago in reply to InigoTolosa

Thank you very much all!

I'll adapt the check with the "has".