SKU: SEN0554 UART Non-contact Optical Turbidity Sensor HOW TO SET UP

Hi,

I can answer this question myself now. You will need 3 hands. One to hold the adaptor still. One to insert the wire in the hole upwards against the metal. One to press down on the lug (could be with a small flat-bladed screw driver). You will feel the wire give and move forwards and you then let go of the lug and it will grip the wire. Thus far there does not seem a way of knowing for certain if it is gripping the wire or the insulation, the other ends of the wire are embedded into the sensors.

Here's some observations: there is a switch on the DFRobot cable Adaptor module V2.0 for 3V3/VIN. I assume it should be thrown to VIN on the right as depicted in the photo (https://thepihut.com/products/uart-non-contact-optical-turbidity-sensor-for-arduino?srsltid=AfmBOooEnY6gGOuqB9TnJQjm42XiRV0ozgLIwEHrOgE1uGRbc9cYvc21) on the Pi hut site.

On the DFRduino UNO v3.0 I have the VIN and GND plugged into the Red Block (POWER) at 5V and GND. Meanwhile IO1 and IO2 are plugged into the larger of the green blocks (digital) at respectively 11 and 12. This is using pin to pin extension wires that I had to order that were not in the original kit.

The UNO board is plugged into the PC via a USB/D cable. Running with Arduino IDE 2.3.3

The code supplied by the Pi hut wiki is uploaded and compiled (message: done uploading, done compiling). So far no data is being collected on the serial monitor or serial plotter however, so some troubleshooting is required.

Any comments much appreciated.

Thanks,

Steslo,

PS the code:

#include <SoftwareSerial.h>

SoftwareSerial mySerial(10, 11); // RX, TX

unsigned char str[5] = { }; //Serial receives data

unsigned char col;

unsigned int distance = 0;

unsigned char a[5] = {

  0x18,0x05, 0x00, 0x01 ,0x0D

};

void setup()

{

  Serial.begin(9600);

  mySerial.begin(9600);

  // put your setup code here, to run once:

}

void loop() {

  // put your main code here, to run repeatedly:

 mySerial.write(a, 5);

  while (!mySerial.available());

  while (mySerial.available() > 0) //Detect if there is data on serial port

  {

      for (int i = 0; i < 5; i++)

      {

        str[i]=mySerial.read();

        delay(5);

      }

      Serial.println(str[3],DEC);

      mySerial.flush();

  }

  delay(500);

}