972b.h

#ifndef _972B_H_
#define _972B_H_

#include <Arduino.h>

// Constants
#define DEFAULT_ADDR "253"

// Structure for NAK codes
struct NAKCode {
    int code; 
    const char* description;
};

struct NACKResult {
    String description;
    bool found;
};


struct CommandResult {
    bool outcome;
    String resultStr;
};

class PressureTransducer {
    public:
        PressureTransducer(String addr=DEFAULT_ADDR, HardwareSerial& serial=Serial2);

        static int getNumNackCodes();
        void sendCommand(String command="", String parameter="");
        String readResponse();
        CommandResult status();
        void changeBaudRate(String newBaudRate="9600");
        void setRS485Delay(String delaySetting="ON");
        void printResponse(const String& response);
        void queryRS485Delay();
        CommandResult setupSetpoint(String setpoint, String direction, String hysteresis="", String enableMode="ON");
        CommandResult requestPressure(String measureType="PR3");
        void printPressure(String measureType="PR3");
        String parseResponse(const String& response);
        void setResponseTimeout(unsigned long timeout);
        CommandResult setPressureUnits(String units="MBAR");
        CommandResult setUserTag(String tag="EBEAM1");

        static const String INCOMPLETE_RESPONSE;
        static const String RESPONSE_TOO_LONG;
        static double sciToDouble(String sciString);
    private:
        HardwareSerial& serialPort;
        String deviceAddress;
        static NAKCode nakCodes[];
        NACKResult decodeNAK(String codeStr);
        bool checkForLockError(String response);
        unsigned long responseTimeout = 3000;   // Default timeout (ms)
        const int maxResponseLength = 256;      // Default maximum response character length
};


#endif // _972B_H_