diff --git a/debugging_tool/server.py b/debugging_tool/server.py
index 595407b..7307277 100644
--- a/debugging_tool/server.py
+++ b/debugging_tool/server.py
@@ -3,6 +3,7 @@ from flask import Flask, jsonify, send_file
 from time import sleep
 from dataclasses import dataclass
 from datetime import datetime
+import serial
 
 app = Flask(__name__)
 shared_message_log = []
@@ -78,11 +79,18 @@ class Message:
 
 
 def serial_reader(messagelog):
-    while True:
-        sleep(5)
-        received = Message(b'\x00' * 8, 0b101000110, datetime.now(), len(messagelog))
-        messagelog.append(received.serialize())
-
+    with serial.Serial('/dev/ttyUSB0', 115200, timeout=10) as ser:
+        while True:
+            line = ser.readline()
+            print(line.decode('ascii'))
+            if line.startswith(b"message"):
+                line = line.decode('ascii')
+                line = line.strip()
+                parts = line.split(' ')
+                sender = int(parts[1])
+                message = bytes(int(p) for p in parts[2:])
+                received = Message(message, sender, datetime.now(), len(messagelog))
+                messagelog.append(received.serialize()
 
 @app.route('/')
 def index():
diff --git a/debugging_tool/sketch_can_debugger/sketch_can_debugger.ino b/debugging_tool/sketch_can_debugger/sketch_can_debugger.ino
new file mode 100644
index 0000000..fb62d5b
--- /dev/null
+++ b/debugging_tool/sketch_can_debugger/sketch_can_debugger.ino
@@ -0,0 +1,26 @@
+#include <mcp2515.h>
+
+MCP2515 mcp2515(10);
+
+void setup() {
+	Serial.begin(115200);
+	mcp2515.reset();
+	mcp2515.setBitrate(CAN_50KBPS);
+	mcp2515.setNormalMode();
+	Serial.println("begin");
+}
+
+void loop() {
+	char message[9];
+	message[8] = '\0';
+	struct can_frame receive_frame;
+	if (mcp2515.readMessage(&receive_frame) == MCP2515::ERROR_OK) {
+		Serial.print("message ");
+		Serial.print(receive_frame.can_id, DEC);
+		for (int i = 0; i < 8; i++) {
+			Serial.print(" ");
+			Serial.print(receive_frame.data[i], DEC);
+		}
+		Serial.print("\n");
+	}
+}