Use Arduino OPTA and Portenta

[PeteKnight]

There is no Bluetooth support in Blynk IoT.

Have you read this…

Connecting portenta machine control to Blynk

It looks like it would run an MQTT client without any problems, so would be simple to use with Node-Red and the Blynk plug-in for Node-Red. Obviously that needs additional hardware, or a cloud server to act as your MQTT broker and Node-Red server. I don’t run Blynk code, or use the Blynk libraries on the majority of my devices, so it’s a perfectly legitimate and practical approach. You could also use the Blynk HTTP(S) API, but that’s more suited to pushing data out to Blynk rather than contro…

Pete.