Issues Switching Between BLE and WiFi on Arduino Nano 33 IoT for Home Automation Project

[ptillisch]

Hi @n3jk0

@n3jk0

I’m facing difficulties with reliably switching between BLE and Wi-Fi on the Arduino Nano 33 IoT.

I recommend taking a look at the code provided here to see if you can spot some significant difference between your code and their code (which was reported as working fine):

Switching between Wifi and BLE

I have cleaned up my code and did some more experimenting. I do not need to reset the Nina module but reinitialize the WiFi driver when switching to WiFi. Here is my example. You will need to add a "arduino_secrets.h" file like other WiFi example for your Wifi network credentials. /*   BLE2WiFi   This example creates a BLE peripheral with a service that contains a   characteristic to switch to WiFi.   The circuit:   - Arduino Nano 33 IoT,   You can use a generic BLE central app, like LightBl…

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Another forum user posted a sketch that demonstrates switching back and forth between the two radios here:

ArduinoBle and ArduinoCloud.update() problem

The problem is that there is no support for using WiFi and BLE at the same time on the NINA module of you Nano 33 IoT. The solution is to use one at a time. That is a bit awkward, but it is possible: #include "arduino_secrets.h" #include <WiFiNINA.h> #include "utility/wifi_drv.h" #include "thingProperties.h" #include <ArduinoBLE.h> const byte maximumBeaconCount = 5; const byte maximumBeacondataLength = 18; const unsigned int BLEPeripheralScanTimeout = 1000; // (ms) if no new BLE peripherals …

That one is a bit older and a bit less relevant for your application because it also has code for using the "ArduinoIoTCloud" library (which was the specific application under discussion in that thread). So I would focus on the code at the first link, but thought I would mention this one as well in case it might be useful in the end.