multimeter test ok & component wip

src/components/multicomp_730424.py

@@ -0,0 +1,33 @@
+import sys
+
+if "--sim-multimeter" in sys.argv:
+    from components.dummies.serial import serial
+else:
+    import serial
+
+from PyQt5.QtWidgets import QMessageBox
+
+from .component import Component
+
+
+class SerialMultimeter(Component):
+    def __init__(self, config=None, name=None):
+        super().__init__(config=config, name=name, threaded=False)
+
+    def write(self, command):
+        try:
+            conn = serial.Serial(
+                self.address,
+                baudrate=self.baudrate,
+                stopbits=self.stopbits,
+                parity=self.parity,
+                bytesize=self.bytesize,
+            )
+            conn.write(bytes(command, encoding="ascii"))
+            conn.close()
+        except serial.serialutil.SerialException as e:
+            QMessageBox.critical(
+                None,
+                "Errore Connessione Multimetro",
+                "Non e stato possibile connettersi al multimetro digitale.\n Verificare che lo strumento sia acceso e collegato\nErrore: " + str(e)
+            )

src/test/multicomp.py

@@ -0,0 +1,29 @@
+import time
+
+import serial
+
+conn = serial.Serial(
+    "/dev/ttyUSB0",
+    baudrate=115200,
+    stopbits=serial.STOPBITS_ONE,
+    parity=serial.PARITY_NONE,
+    bytesize=serial.EIGHTBITS,
+    timeout=1
+)
+
+cmd_list= (("*IDN?\n",True), # QUERY ID
+            ("CONF:RES 500\n",False), # SET RESISTANCE MEASURE, 500 Ohm range
+            ("MEAS?\n",True),  # GET MEASURE
+            ("MEAS?\n",True),  # GET MEASURE
+            ("MEAS?\n", True))  # GET MEASURE
+
+for cmditem in cmd_list:
+    cmd,expect_response=cmditem
+    conn.write(bytes(cmd, encoding="ascii"))
+    if expect_response:
+        response = conn.readline()
+        print(f"{cmd} RESPONSE: "+response.decode("ascii"))
+    else:
+        print(f"{cmd}")
+    time.sleep(1)
+conn.close()