Yosemitech Y700 Pressure Sensor module

Sensor Datasheet

Sensor Constructor

Example Code

The Yosemitech Y700 pressure sensor is used in the menu a la carte example.

#include <sensors/YosemitechY700.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          y700ModbusAddress  = 0x70;  // The modbus address of the Y700
const int8_t  y700AdapterPower   = sensorPowerPin;  // RS485 adapter power pin
const int8_t  y700SensorPower    = A3;              // Sensor power pin
const int8_t  y700EnablePin      = -1;              // Adapter RE/DE pin
const uint8_t y700NumberReadings = 5;
// The manufacturer recommends averaging 10 readings, but we take 5 to minimize
// power consumption

// Create a Y700 pressure sensor object
YosemitechY700 y700(y700ModbusAddress, modbusSerial, y700AdapterPower,
                    y700SensorPower, y700EnablePin, y700NumberReadings);

// Create pressure and temperature variable pointers for the Y700
Variable* y700Pres =
    new YosemitechY700_Pressure(&y700, "12345678-abcd-1234-ef00-1234567890ab");
Variable* y700Temp =
    new YosemitechY700_Temp(&y700, "12345678-abcd-1234-ef00-1234567890ab");

Classes

class YosemitechY700

The Sensor sub-class for the Yosemitech Y700 pressure sensor.

class YosemitechY700_Pressure

The Variable sub-class used for the pressure output from a Yosemitech Y700 pressure sensor.

class YosemitechY700_Temp

The Variable sub-class used for the temperature output from a Yosemitech Y700 pressure sensor.

Defines

#define Y700_NUM_VARIABLES = 2

Sensor::_numReturnedValues; the Y700 can report 2 values.

#define Y700_INC_CALC_VARIABLES = 0

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

Sensor Timing

The sensor timing for a Yosemitch Y700

#define Y700_WARM_UP_TIME_MS = 1000

Sensor::_warmUpTime_ms; time before sensor responds after power - 1000 ms.

#define Y700_STABILIZATION_TIME_MS = 4000

Sensor::_stabilizationTime_ms; time between "StartMeasurement" command and stable reading - Y700 takes 4 s to get stability <1 mm, but 12 s for <0.1 mm. If highest precision is required, increase to 12000.

#define Y700_MEASUREMENT_TIME_MS = 1000

Sensor::_measurementTime_ms; the Y700 takes <1 s for new values. but >1 s for values that don't seem autocorrelated.

Pressure

The Pressure variable from a Yosemitch Y700

• Range is 0mH2O, ~2mH2O, or 100mH2O, depending on model
• Accuracy is ± 0.1 % Full Scale

#define Y700_PRES_RESOLUTION = 2

Decimals places in string representation; Pressure should have 1.

• resolution is 0.01 mm.

#define Y700_PRES_VAR_NUM = 0

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

#define Y700_PRES_VAR_NAME = "pressureGauge"

Variable name in ODM2 controlled vocabulary; "pressureGauge".

#define Y700_PRES_UNIT_NAME = "millimeterOfWater"

Variable unit name in ODM2 controlled vocabulary; "millimeterOfWater" (mmH2O)

#define Y700_PRES_DEFAULT_CODE = "Y700Pres"

Default variable short code; "Y700Pres".

Temperature

The temperature variable from a Yosemitch Y700

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

#define Y700_TEMP_RESOLUTION = 1

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

#define Y700_TEMP_VAR_NUM = 1

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

#define Y700_TEMP_VAR_NAME = "temperature"

Variable name in ODM2 controlled vocabulary; "temperature".

#define Y700_TEMP_UNIT_NAME = "degreeCelsius"

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

#define Y700_TEMP_DEFAULT_CODE = "Y700Temp"

Default variable short code; "Y700Temp".