Before awarding to anyone, give me a chance to discuss it with you. I am embedded system electronics engineer with 3 years of experience in raspberry and similar boards. i will make you a python script that will check the log file and will remove the extra chars by formating the data and can transmit it to usb serial.
I have worked on home automation, beacon based indoor positioning system, smart parking system with real parking spots update on mobile app, etc. Another iot product I worked on was women saftety device, on which, if women press the button, her location is shared with her family members and it starts recording audio to a cloud server automatically, while at the same time it calls nearest police station automatically.
Please consider sending me a message so that we can discuss this further.