hii, I am an expert in arduino and had been doing arduino projects from past 4 years. I am a software engineer by profession. Just looked at your project , and its a very easy task for me, and I can do that with 100%. I am new to freelancer platform and looking for opportunities.
Also, I am ready to negotiate for the final price, so incase, if you think, i can come down a little bit, as 225Euros is starting limit and was not able to bid for lower price.
Also let me know, the format the string will be received by the arduino that is need to be processed.