Hi. I am an electronic engineer with more than 10 years of experience in embedded systems development.
I can develop your project.
Necessary if you can tell me a little more about the nature of it to be able to better evaluate a solution, such as:
Number of nodes to communicate, distance between them, communication rate and amount of data to transmit. Do you already have in mind some system like LORA, ZigBee, RF SubGhz?
I propose a real development time of 21 days, without knowing the scope of your project, that time can be adjusted.
If you like, you can communicate with me without obligation, in order to know more about my skills and get to know the project better.
Thank you for your consideration and success in your project.
Cheers