Hi how are you, I am an electronic engineer. I am interested in your project, I have my own studio room for product development in ShenZhen City China,I have good experienced in the circuit design, components choose, PCB design and problem analysis, and I have good sources for components purchase and manufacturer factory, In the past I was done for many Projects design that is from schematic......to final product , as like 433MHZ RF module, GPRS-DTU,power bank, videos camera, PIR LED, Audio card module, Ultrasonic water level detection,Bluetooth module, smoke detectors,cordless phone...etc, Thank you very much, and looking forward from your reply early.