I am thinking of using a Nano 33 IOT in a remote device using a waterproof ultrasound device, sending the data via Bluetooth to a base station. However the sensor uses 5v input rather than 3.3v. As I understand it, the Nano 33 only gives a 5v output when powered via the USB. Is there a way of getting the Nano 33 to give a 5v output without using the 5v USB input? I was thinking of using two 18650 batteries to give me 7.4v and use the Vin pin. Is it possible to connect the battery via the USB input although the voltage will be above 5v usually supplied. I don't have a Nano 33 IOT yet so can't do hands on testing.
Failing all of that does anyone have a better board suggestion that incorporates Bluetooth?
Good suggestion, but was trying to keep things simple. Am I right in thinking that the data input from the sensor which will be at 5v will not damage the Nano, although again I could run that via the level shifter as well to bring back to 3.3v if I went that route. I will be using pins 10 & 11 for the data TX & RX.