wattrex-driver-flow

Introduction

The purpose of this package is to communicate with the flowmeter, read the measurements and save them to a csv file. To do this, you need one or two flowmeters and an Arduino Uno.
Flowmeter features

Flow range: 0.05 l/min - 10 l/min.
Supply voltage: 4.5V -24V.
Rated current: 8mA.
Output: NPN/PNP pulse current
Pipe diameter range: 8mm.
Connections:
```
 - Blue: Output.
 - Red: +4,5 - 24V.
 - Screen 0 V.
```
Arduino connection diagram

Power of the arduino through the usb to usb port of the controller.

Flow main:
```
 - Blue: Pin 2
 - Red: 5V
 - Screen: GND
```
Flow aux:
```
 - Blue: Pin 8
 - Red: 5V
 - Screen: GND
```
SCPI Commands
- Message: 'IDN*?' Response: ':IDN:FLOWmeter:DEVice: Device_number :VERsion: firmware_version \n'
- Message: ':MEASure:FLOW?' Response: ':MEASure:FLOW:DATA flow_main flow_aux \n'
References

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