Hello,
I will be happy to help you with IoT project. I set 14 days(7+7) for the project, this way you will have 7 days of testing period.
I think that I will be most cost / time effective because I have worked on a similar project for controlling air conditioning system with external IoT Xiaomi Minja temperature sensor(Bluetooth connection).
More about me:
I have more than 17 years of experience in .NET app development. I was working most of my life as a Full Stack .NET web applications developer, but I have done also many apps for IoT projects.
I have 29 years of experience in programming. I was working in Microsoft Corporation in Bulgaria.
I will also strongly recommend you to use European developer, especially from Bulgaria :) , which is well known as the Silicon Valley of Europe.
Best regards,
Ivan
Bulgaria
European Union