Yosemitech Y511 Wipered Turbidty Sensor module

Sensor Datasheet

• Manual
• Modbus Instructions

Sensor Constructor

Example Code

The Yosemitech Y511 wipered turbidity sensor is used in the menu a la carte example.

#include <sensors/YosemitechY511.h>

// NOTE: Extra hardware and software serial ports are created in the "Settings
// for Additional Serial Ports" section

// NOTE: Use -1 for any pins that don't apply or aren't being used.
byte          y511ModbusAddress  = 0x1A;  // The modbus address of the Y511
const int8_t  y511AdapterPower   = sensorPowerPin;  // RS485 adapter power pin
const int8_t  y511SensorPower    = A3;              // Sensor power pin
const int8_t  y511EnablePin      = -1;              // Adapter RE/DE pin
const uint8_t y511NumberReadings = 5;
// The manufacturer recommends averaging 10 readings, but we take 5 to minimize
// power consumption

// Create a Y511-A Turbidity sensor object
YosemitechY511 y511(y511ModbusAddress, modbusSerial, y511AdapterPower,
                    y511SensorPower, y511EnablePin, y511NumberReadings);

// Create turbidity and temperature variable pointers for the Y511
Variable* y511Turb =
    new YosemitechY511_Turbidity(&y511, "12345678-abcd-1234-ef00-1234567890ab");
Variable* y511Temp =
    new YosemitechY511_Temp(&y511, "12345678-abcd-1234-ef00-1234567890ab");

Classes

class YosemitechY511

The Sensor sub-class for the Yosemitech Y511-A optical turbidity sensor with wiper.

class YosemitechY511_Turbidity

The Variable sub-class used for the turbidity output from a Yosemitech Y511-A optical turbidity sensor with wiper.

class YosemitechY511_Temp

The Variable sub-class used for the temperature output from a Yosemitech Y511-A optical turbidity sensor with wiper.

Defines

#define Y511_NUM_VARIABLES = 2

Sensor::_numReturnedValues; the Y511 can report 2 values.

#define Y511_INC_CALC_VARIABLES = 0

Sensor::_incCalcValues; we don't calculate any additional values.

Sensor Timing

The sensor timing for a Yosemitch Y511

#define Y511_WARM_UP_TIME_MS = 8000

Sensor::_warmUpTime_ms; Y511 warms up in 8000ms.

500 ms to receive commands, but if activating brush warmup+stabilization must >20s

#define Y511_STABILIZATION_TIME_MS = 40000

Sensor::_stabilizationTime_ms; Y511 is stable after 40s.

warmup+stabilization > 48 s for consecutive readings to give different results

#define Y511_MEASUREMENT_TIME_MS = 4000

Sensor::_measurementTime_ms; Y511 take ~4s (4000ms) to complete a measurement.

Could potentially be lower with a longer stabilization time; more testing needed.

Turbidity

The turbidity variable from a Yosemitch Y511

• Range is 0.1 to 1000 NTU
• Accuracy is ± 5 % or 0.3 NTU

#define Y511_TURB_RESOLUTION = 2

Decimals places in string representation; turbidity should have 2 - resolution is 0.01 NTU.

#define Y511_TURB_VAR_NUM = 0

Sensor variable number; turbidity is stored in sensorValues[0].

#define Y511_TURB_VAR_NAME = "turbidity"

Variable name in ODM2 controlled vocabulary; "turbidity".

#define Y511_TURB_UNIT_NAME = "nephelometricTurbidityUnit"

Variable unit name in ODM2 controlled vocabulary; "nephelometricTurbidityUnit" (NTU)

#define Y511_TURB_DEFAULT_CODE = "Y511Turbidity"

Default variable short code; "Y511Turbidity".

Temperature

The temperature variable from a Yosemitch Y511

• Range is 0°C to + 50°C
• Accuracy is ± 0.2°C

#define Y511_TEMP_RESOLUTION = 1

Decimals places in string representation; temperature should have 1 - resolution is 0.1°C.

#define Y511_TEMP_VAR_NUM = 1

Sensor variable number; temperature is stored in sensorValues[1].

#define Y511_TEMP_VAR_NAME = "temperature"

Variable name in ODM2 controlled vocabulary; "temperature".

#define Y511_TEMP_UNIT_NAME = "degreeCelsius"

Variable unit name in ODM2 controlled vocabulary; "degreeCelsius" (°C)

#define Y511_TEMP_DEFAULT_CODE = "Y511Temp"

Default variable short code; "Y511Temp".