how to send temperature values in nrf5840

[Nivetha]

I'm using Nordic nRF5840 and I want to send the micro controller's temperature every 1 second via Bluetooth. Can you tell me how to implement it?

I found an example named Health Thermometer Service Sample Application. Does it apply for nRF5840? I just want to send the chip's temperature using BLE every 1 sec.

Thanks in advance!

[endnode]

(one sentence question but answer worth 2-month full time course;)

[Nivetha]

At least could you tell me how to implement?I found this link Do I have to create a custom profile or use the existing health thermometer service? Thanks!

[endnode]

What example exactly are you referring to? There seems to be Heart Rate Monitor example which should contain Thermometer, but that might be too complex and cumbersome unless you have already app on the other side which will understand HRS protocol and data. Otherwise simply use any protocol (like Nordic BLE UART aka NUS examples) and transport temperature value over the link as you need. There is Thermometer in nRF5x MCUs, not super accurate but for first iteration it's enough. See chip specification and SDK how to read it and you are more or less done.

[endnode]

That's the problem: BT SIG standartize GATT Service but that doesn't mean you are done. You need to handle all other layrs on both sides. Some of them are easy to handle (= stacks are ready made for them) but some need at least minimal control over APIs (which are platform specific) and there it starts to be complex;)

[endnode]

However if you want example of BT SIG GATT Health Thermometer Service implementation on nRF52 then see this in nRF5 SDK. Still you need to embed it into some application (presumably with some GAP Profile),