wattrex-driver-flow 0.0.3

Driver to get measures from a flowmeter.

DRIVER FOR FLOWMETER

1. 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.

2. 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.
   

3. 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
   

4. 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'

5. References

• Flowmeter: https://es.rs-online.com/web/p/caudalimetros/5082704
• Arduino uno: https://store.arduino.cc/products/arduino-uno-rev3