Adding TWI to ble_app_hrs example

RE: Adding TWI to ble_app_hrs example

haakonsh — Mon, 21 Jan 2019 14:54:48 GMT

Yes, of coarse.

I suggest you check out examples that uses the Timer library to trigger tasks that are to be executed at regular intervals. Do note that the SoftDevice has execution priority during BLE events.

See TWI master driver and TWIM driver API docs.

"In my project, do I need to setup a service for each TWI slave that I want to monitor or using the TWIM can I setup one service that polls each TWI slave (one after the other) every few seconds?" Are you talking about a BLE service or just a regular C routine?

RE: Adding TWI to ble_app_hrs example

jeffreyk59 — Sun, 20 Jan 2019 19:09:03 GMT

Looking at the ble_app_hrs example, it creates and executes four services at various timer intervals:

Battery Level every 2 seconds
Heart Rate Measurement every 1 second
RR interval every 300 ms (I'm not sure what this does)
Sensor Contact every 5 seconds (I'm not sure what this does either)

In my project, do I need to setup a service for each TWI slave that I want to monitor or using the TWIM can I setup one service that polls each TWI slave (one after the other) every few seconds?