Finished preliminray version of the python serial monitor. Updated arduino scripts to wor at 115200 baud rate.

.vim/coc-settings.json

@@ -0,0 +1,6 @@
+{
+  "python.linting.pylintEnabled": true,
+  "python.linting.mypyEnabled": false,
+  "python.linting.enabled": true,
+  "python.formatting.provider": "black"
+}

arduino_programs/arduino_programmer/arduino_programmer.ino

@@ -146,7 +146,7 @@ void setup() {
   // Setting an invalid value.
   lastOp = -1;
 
-  Serial.begin(9600);
+  Serial.begin(115200);
   
   writeEEPROM(0x1234, 0x55, true);
   writeEEPROM(0x4321, 0x7E, true);

arduino_programs/arduino_tester.ino

@@ -0,0 +1,9 @@
+// This program is supposed to be used with an Arduino Mega.
+
+void setup() {
+
+}
+
+void loop() {
+
+}

arduino_programs/arduino_tester/arduino_tester.ino

@@ -11,7 +11,7 @@
 #define WRITE_CLOCK 19
 
 void setup() {
-  Serial.begin(9600);
+  Serial.begin(115200);
   attachInterrupt(digitalPinToInterrupt(ADDRESS_CLOCK), onAddressClock, RISING);
   attachInterrupt(digitalPinToInterrupt(WRITE_CLOCK), onWriteClock, FALLING);
 }

serial_monitor/serial_monitor.py

@@ -0,0 +1,44 @@
+import glob
+import argparse
+import serial
+
+
+def main():
+    parser = argparse.ArgumentParser()
+    parser.add_argument("--port")
+    args = parser.parse_args()
+
+    # Get all the valid serial ports available.
+    available_ports = glob.glob("/dev/cu.*")
+
+    # Only do this if the user did not specify a port.
+    if args.port is None:
+        # Make the user select a port to start a listening session.
+        print("Available ports:")
+        for i, port in enumerate(available_ports):
+            print(f"{i} - {port}")
+
+    selected_port_index = None
+    while selected_port_index is None and args.port is None:
+        try:
+            selected_port_index = input(
+                "\nType port number to start listening section: "
+            )
+            selected_port_index = int(selected_port_index)
+            if selected_port_index < 0 or selected_port_index >= len(available_ports):
+                print("The port number you provided does not exist.")
+                selected_port_index = None
+        except:
+            print("The typed input is not valid, please enter a valid number.")
+            selected_port_index = None
+
+    port = args.port if args.port is not None else available_ports[selected_port_index]
+    # TODO: Allow selecting baud raute, 115200 by default for now.
+    with serial.Serial(port, 115200) as ser:
+        while True:
+            byte = ser.read()
+            print(byte.decode("utf-8"), end="")
+
+
+if __name__ == "__main__":
+    main()