tracked experimental veboard serial send plugin

plugins/SerialSendPlugin.py

@@ -0,0 +1,92 @@
+import serial
+from serial import Serial
+import data_centre.plugin_collection
+from data_centre.plugin_collection import ActionsPlugin, SequencePlugin
+import threading
+
+# Tristan Rowley 2020 -- proof of concept controller for the 'veboard' arduino sketch https://github.com/doctea/veboard
+
+class SerialSendPlugin(ActionsPlugin,SequencePlugin):
+    ser = None
+    commands = "GRAEIVXYZ012345Cgraeivxyzc"
+
+    active = True
+
+    def __init__(self, plugin_collection):
+        super().__init__(plugin_collection)
+
+        if self.disabled:
+            print ("SerialSendPlugin is disabled, not initialising")
+            return
+
+        self.open_serial()
+
+        self.macros = [
+                "GRI0S",
+                "griVS",
+                "VXCAS",
+                "vYca5S"
+        ]
+
+    def stop_plugin(self):
+        super().stop_plugin()
+        if self.ser is not None:
+            self.ser.close()
+        #self.save_presets()
+
+    def open_serial(self, port='/dev/ttyUSB1', baudrate=38400):
+        if self.ser is not None:
+            self.ser.close()
+        try:
+            self.ser = serial.Serial(
+                port=port,
+                baudrate=baudrate,
+                timeout=None
+            )
+            print ("opened serial %s at %s" % (port, baudrate))
+        except Exception as e:
+            print ("open_serial failed: " + str(type(e)))
+            import traceback
+            traceback.print_exc()
+
+    @property
+    def parserlist(self):
+        return [
+                ( r"send_serial_macro_([0-9])", self.send_serial_macro ),
+                ( r"send_serial_string_(.*)", self.send_serial_string ),
+                ( r"send_random_settings", self.send_random_settings ),
+                ( r"open_serial", self.open_serial )
+        ]
+
+    def send_serial_macro(self, macro):
+        self.send_serial_string(self.macros[macro])
+
+    def send_serial_string(self, string):
+        try:
+            self.ser.write(string.encode())
+            print("sent string %s" % string.encode())
+            """if 'S' in string:
+                self.get_device_status()"""
+        except Exception as e:
+            print("%s: send_serial_string failed for '%s'" % (e,string.encode()))
+
+    def send_random_settings(self):
+        import random
+        output = ""
+        output += "".join(random.sample(self.commands,5))
+        self.send_serial_string(output)
+
+    def read_serial_string(self): #, what):
+        print("starting read?")
+        read = self.ser.readline()
+        print("read %s" % read)
+        self.handle_device_status(reading)
+
+    def get_device_status(self):
+        #self.send_serial_string('S')
+        #self.read_serial_string(self.handle_device_status)
+        print("starting thread to listen?")
+        thread = threading.Thread(target=self.read_serial_string)#, args=None)
+
+    def handle_device_status(self, result):
+        print("get_device_status got %s" % result)