Hello,
My name is Andrei, i am a Romanian IOT Developer with a lot of experience in IOT projects and automatics .
I have read your project description, and this is a issue from the protections , i can do your watt meter , by remade it from your files , here on my workshop. and test at all kind of voltages , for 220v 50HZ and 110V .
I can work with all types of Microcontroles programming in C , C++ , Mikro C , CCS C , Atmel Studio , Arduino , gcc .
Creating Schematics and PCB in Kicad , Eagle , EasyEDA and Proteus (+simulation).
i have an workshop full of parts and the infrastructure to build PCB and test the solution end to end using special tools (Spectrum analyzers , oscilloscope , logic analyzers )
Derivable on the project :
modification necessary to be made on your project to can work
Software - if modifications needed
BOM update if a part have troubles .
As an additional service i can make you a full working prototype and ship to you.
Regards,
Andrei