Water Flowmeter-Temperature Probe-Pressure Sensor

[mtuhusky]

Hello all,

Ill start by saying I am new to the world of Arduinos but have been interested for a while so here is my first project:

I am trying to build flow meter for water with the ability to monitor the temperature and pressure as well. The maximum temperature I will see is roughly 200 F. The max pressure will be around 200Psi. The max flowrate I should see is roughly 30 L/min.

Based on what little I know, these are the components I have been looking at so far:

1. Arduino Board: Arduino Nano 33 BLE Sense Rev2 with headers
2. Temperature Sensor: ds18b20 digital temperature sensor waterproof
3. Flowmeter: DIGITEN G3/4" Brass Water Flow Sensor, Hall Effect Liquid Flow Meter Flowmeter Counter 1-30L/min
4. Pressure Sensor: Gravity: Analog Water Pressure Sensor

So without roasting me too badly, am I headed in an ok direction here or would you recommend different components?

[jremington]

The sensors are OK, but the Nano 33 BLE is a 3.3V processor, and requires logic level shifters to work with 5V sensors.

The Classic Nano, Uno or other 5V processor would be a better choice.

[gilshultz]

I would go with the UNO or Nano unless you need the bluetooth. If you have the Nano 33 the temperature sensor is fine with 3V3, the flow meter is a pulse output so that can be scaled with a resistor divider as can the output of the pressure sensor. Either way it would not be that hard to build.