nRF5340 - IoT application

[Gabriele]

Hi,

I'm trying to devise the hardware platform for a Home Monitoring medical device.
In the first place I planned to use the NORDIC nRF5340. With its large memory it would be perfect to run the application linked to a companion Smartphone App.
Thereafter the boss came with a new request: "make it versatile enough to work also as a IoT device".
I'm not a master of this topic (not yet) but I think this translates into adding a Wi-Fi capability to the device, because most of the potential users don't have a Thread or Zigbee infrastructure at home.
Thus if I want to continue with NORDIC nRF5340 I have to add an extra module, as shown in picture.
One problem is how to handle with the coexistence problem ? Can you suggest the smallest Wi-Fi chip that fits the design ?

I'm open to advice and critics

Gabriele

[awneil]

Gabriele said:

the boss came with a new request: "make it versatile enough to work also as a IoT device"

You need to get your boss to clarify exactly what (s)he means by that - as it stands, it's pretty much just a meaningless buzzphrase.

[Gabriele]

This is a Health Monitoring application for patients to measure their body parameters (airflow) at home.
By "IoT" my boss means a way for the patients to get rid of the Smartphone for making the test - except for initial configuration and some notifications - and automatically sending the result directly to a database on a cloud server. The doctors via Internet (or an automated algorithm) will check the health status of their patients remotely.

The implicit assumptions are:
- making the test without the Smartphone is easier for the patient
- every patient has a always-on Wi-Fi Access Point connected to the Internet