VERY EASY FOR ME
As you can see in my review, I've done similar with yours
https://www.freelancer.com/projects/xml/Windows-app-receive-serial-update/?w=f
https://www.freelancer.com/projects/cplusplus-programming/serial-port-parse-correct-save/?w=f
Hello., I can make it within 1 day
I have read your description and I am so interested in your project.
I am confident in your project and I can finish it clearly on time.
I am well experienced and skillful RS232C, C, Java and C++ programmer.
I have +5 years of experience in software developing.
I have finished a lot of project like this.
I ensure the best quality of your project and to keep your deadline.
Please contact me kindly and let us discuss in more detail.
Working with me, you will have a good experience and good friend and save more time and money.
After complete project, I can support fixing bugs with free.
and support update features with low price.
Best regards!