diff --git a/meshtastic/__init__.py b/meshtastic/__init__.py
new file mode 100644
index 0000000..d2d61e2
--- /dev/null
+++ b/meshtastic/__init__.py
@@ -0,0 +1,4 @@
+
+"""API for Meshtastic devices"""
+
+from .interface import MeshInterface
diff --git a/meshtastic/__main__.py b/meshtastic/__main__.py
new file mode 100644
index 0000000..02ae007
--- /dev/null
+++ b/meshtastic/__main__.py
@@ -0,0 +1,42 @@
+#!python3
+
+import argparse
+from .interface import MeshInterface
+import logging
+
+
+def main():
+    """Perform command line meshtastic operations"""
+    parser = argparse.ArgumentParser()
+
+    # Operations for manufacturing
+    parser.add_argument("--install", choices=['JR', 'JL', 'JM', 'JO', 'JG', 'JK', 'JY', 'JC', 'JT', 'MB', 'MS'],
+                        help="Install the ezdevice code onto a new device (you must select the board type letter - see README.md)")
+    parser.add_argument("--readee", action="store_true",
+                        help="Extract the eeprom contents from the device, so it can be programmed onto other boards")
+
+    # Operations for app developers
+    parser.add_argument(
+        "--target", help="The device we are controlling given as <ID>:<secretkey> (get the secret key at https://www.ezdevice.net/my/devices)")
+    parser.add_argument(
+        "--displayfile", help="display a text,html,png,svg or jpeg file on the display")
+    # parser.add_argument("--displayURL", help="display a text,html,png,svg or jpeg from the web on the device")
+    parser.add_argument(
+        "--claim", help="Mark that this device is no longer being used for custom development", action="store_true")
+    parser.add_argument(
+        "--release", help="Mark that this device is no longer being used for custom development (i.e. return to joyframe demo app)", action="store_true")
+
+    # Operations for server backend developers
+    parser.add_argument("--localserve", help="Talk to a development server",
+                        action="store_true")
+    parser.add_argument("--debug", help="Show debug log message",
+                        action="store_true")
+
+    args = parser.parse_args()
+
+    logging.basicConfig(level=logging.DEBUG if args.debug else logging.INFO)
+    client = MeshInterface("/dev/ttyUSB0")
+
+
+if __name__ == "__main__":
+    main()
diff --git a/meshtastic/interface.py b/meshtastic/interface.py
new file mode 100644
index 0000000..7c91be2
--- /dev/null
+++ b/meshtastic/interface.py
@@ -0,0 +1,34 @@
+
+import serial
+import threading
+import logging
+import sys
+
+"""
+
+TODO: 
+* use port enumeration to find ports https://pyserial.readthedocs.io/en/latest/shortintro.html
+
+"""
+
+
+class MeshInterface:
+    """Interface class for meshtastic devices"""
+
+    def __init__(self, devPath):
+        """Constructor, opens a connection to a specified serial port"""
+        logging.debug(f"Connecting to {devPath}")
+        self.debugOut = sys.stdout
+        self.rxBuf = bytes()  # empty
+        self.stream = serial.Serial(devPath, 921600)
+        self.rxThread = threading.Thread(target=self.__reader, args=())
+        self.rxThread.start()
+
+    def close(self):
+        self.stream.close()  # This will cause our reader thread to exit
+
+    def __reader(self):
+        """The reader thread that reads bytes from our stream"""
+        while True:
+            b = read(1)
+            self.debugOut.write(b)
diff --git a/setup.py b/setup.py
index 85f3778..7a39101 100644
--- a/setup.py
+++ b/setup.py
@@ -25,7 +25,7 @@ setup(
     ],
     packages=["meshtastic"],
     include_package_data=True,
-    install_requires=["FIXME"],
+    install_requires=["pyserial"],
     python_requires='>=3',
     entry_points={
         "console_scripts": [