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 requirements , i already have this system working , i need just to make the Solar power MPTT and to make the transmission sleep .
I use this for a pre heating tank for solar water heater .
I have 2 versions for you :D
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 :
wiring diagram for prof of concept
Schematic design
PCB Design
Gerber files for manufacturing
MCU code explained
Regards,
Andrei