Add rigol dm3000 scope

src/libMeter/CMakeLists.txt

@@ -10,6 +10,7 @@ target_sources(Meter
   PM6680.cpp
   DMM6500.cpp
   KeysightDAQ970A.cpp
+  RigolDM30XX.cpp
   )
 target_link_libraries(Meter PRIVATE Com Utils)
 target_include_directories(Meter PUBLIC ${CMAKE_CURRENT_SOURCE_DIR})

src/libMeter/RigolDM30XX.cpp

+#include "RigolDM30XX.h"
+
+#include "IMeter.h"
+#include "Logger.h"
+#include "MeterRegistry.h"
+#include "ScopeLock.h"
+#include "StringUtils.h"
+REGISTER_METER(RigolDM30XX)
+
+RigolDM30XX::RigolDM30XX(const std::string& name)
+    : IMeter(name, {"DM3058", "DM3058E", "DM3068"}) {}
+
+bool RigolDM30XX::ping(unsigned /*dev*/) {
+    std::string result = "";
+    logger(logDEBUG) << "ping the multimeter.....";
+    result = m_com->sendreceive("*IDN?");
+    utils::rtrim(result);
+    if (result.empty()) {
+        throw std::runtime_error("Failed communication with the device");
+    } else {
+        logger(logDEBUG) << result;
+    }
+
+    return !result.empty();
+}
+
+std::string RigolDM30XX::identify() {
+    std::string idn = m_com->sendreceive("*IDN?");
+    return idn;
+}
+
+void RigolDM30XX::autowait() {
+    m_com->send("*OPC");
+    int ESRValue = 0;
+    while ((ESRValue & 1) == 0) {
+        ESRValue = std::stoi(m_com->sendreceive("*ESR?"));
+        std::this_thread::sleep_for(std::chrono::milliseconds(m_wait));
+    }
+}
+
+void RigolDM30XX::send(const std::string& cmd) {
+    logger(logDEBUG) << __PRETTY_FUNCTION__ << " -> Sending: " << cmd;
+    m_com->send("*CLS");
+    m_com->send(cmd);
+    this->autowait();
+}
+
+std::string RigolDM30XX::sendreceive(const std::string& cmd) {
+    m_com->send("*CLS");
+    std::string buf = m_com->sendreceive(cmd);
+    this->autowait();
+    logger(logDEBUG) << __PRETTY_FUNCTION__ << " -> Received: " << buf;
+    utils::rtrim(buf);
+    return buf;
+}
+
+void RigolDM30XX::reset() {
+    logger(logDEBUG) << __PRETTY_FUNCTION__ << " -> Initialising: ";
+    this->send("*RST");
+}
+
+// measure DC voltage with high precision
+// take average of 10 repeatings
+double RigolDM30XX::measureDCV(unsigned channel) {
+    ScopeLock lock(m_com);
+
+    return std::stod(this->sendreceive(":MEAS:VOLT:DC?"));
+}
+
+// measure resistance (2W or 4W)
+// take average of 10 repeatings
+double RigolDM30XX::measureRES(unsigned channel, bool use4w) {
+    std::string n_func = "RES";
+    if (use4w) n_func = "FRES";
+
+    ScopeLock lock(m_com);
+
+    return std::stod(this->sendreceive(":MEAS:" + n_func + "?"));
+}
+
+// measure DC current with high precision
+// take average of 10 repeatings
+double RigolDM30XX::measureDCI(unsigned channel) {
+    ScopeLock lock(m_com);
+
+    return std::stod(this->sendreceive(":MEAS:CURR:DC?"));
+}

src/libMeter/RigolDM30XX.h

+#ifndef RigolDM30XX_H
+#define RigolDM30XX_H
+#include <chrono>
+#include <iostream>
+#include <string>
+#include <thread>
+
+#include "IMeter.h"
+
+/*
+ RigolDM30XX single-channel multimeter
+ Author: Simon Koch
+ Date: Feb 2024
+ Reference 1 (User Guide, DM3068):
+ https://www.rigol-uk.co.uk/pdf/Rigol-DM3068-User-Guide.pdf
+ Reference 2 (Programmers Guide, DM3058/3058E/3068):
+ https://beyondmeasure.rigoltech.com/acton/attachment/1579/f-003f/0/-/-/-/-/file.pdf
+
+ Based on implementation of Keithley2000
+   - channel argument included only for compatibility with IMeter interface
+*/
+class RigolDM30XX : public IMeter {
+ public:
+    RigolDM30XX(const std::string& name);
+
+    /** ping the device
+     */
+    virtual bool ping(unsigned dev = 0);
+
+    virtual std::string identify();
+
+    virtual void reset();
+
+    /** measure DC voltage (unit: V)
+     */
+    virtual double measureDCV(unsigned channel = 0);
+
+    /** measure DC current (unit: A)
+     */
+    virtual double measureDCI(unsigned channel = 0);
+
+    /* measure resistance (unit: Ohm)
+     */
+    virtual double measureRES(unsigned channel = 0, bool use4w = false);
+
+ private:
+    void send(const std::string& cmd);
+
+    std::string sendreceive(const std::string& cmd);
+    void autowait();
+
+    std::chrono::milliseconds m_wait{10};
+};
+
+#endif

src/libMeter/python.cpp

@@ -14,6 +14,7 @@
 #include "IMeter.h"
 #include "Keithley2000.h"
 #include "KeysightDAQ970A.h"
+#include "RigolDM30XX.h"
 
 namespace py = pybind11;
 
@@ -152,6 +153,20 @@ void register_meter(py::module& m) {
                                const std::vector<unsigned>&, bool)>(
                                &Keithley2000::measureRES));
 
+    // RigolDM30XX
+    py::class_<RigolDM30XX, IMeter, std::shared_ptr<RigolDM30XX>>(m,
+                                                                  "RigolDM30XX")
+        .def(py::init<const std::string&>())
+        .def("ping", &RigolDM30XX::ping)
+        .def("identify", &RigolDM30XX::identify)
+        .def("reset", &RigolDM30XX::reset)
+        .def("measureDCV", static_cast<double (RigolDM30XX::*)(unsigned)>(
+                               &RigolDM30XX::measureDCV))
+        .def("measureDCI", static_cast<double (RigolDM30XX::*)(unsigned)>(
+                               &RigolDM30XX::measureDCI))
+        .def("measureRES", static_cast<double (RigolDM30XX::*)(unsigned, bool)>(
+                               &RigolDM30XX::measureRES));
+
     // KeysightDAQ970A
     py::class_<KeysightDAQ970A, IMeter, std::shared_ptr<KeysightDAQ970A>>
         daq970a(m, "KeysightDAQ970A");