I am new to this forum and relatively new to electronics in general.
I am currently trying to set up a system where I can connect:
- an O2 sensor (LuminOx - Supply V: 4.5 - 5.5 Vdc - communication protocol: 3.3v RS232)
- and a CO2 sensor (MinIR - Supply V: 3.3 - 5Vdc - Communication protocol: UART)
to a microcontroller that would be able to communicate with a laptop via bluetooth.
I am trying to understand what my best microcontroller option would be. My setup will require the sensor/microcontroller assembly to be powered by an external battery pack.
My initial investigation led me to the Arduino Nano 33 BLE board but in my understanding, I would be able to communicate only to one sensor and not both at the same time as it only has one serial port. The other issue I see is that the board operates at 3.3V and one of the O2 sensor requires an input voltage of 4.5-5.5 V.
I may be wrong in my above statement and please feel free to correct me.
Any ideas of what microcontroller I could use to get my system working?
Any help is welcome. Thank you