Program arduino units and have them communicating through usb to raspberry pi

I need you to develop some software for me. I would like this software to be [login to view URL] 1 - DS18820 1 Wire temp. sensor to control two ssr relays on an Arduino Nano. Temp need to be displayed on an LED and relay on need to be indicated with led Sketch 2 - Optical water level to control 230 v ssr relay with Arduino nano. Software need to count the amount of water the pump connected to the relay will use and send warnings to thingspeak or similar. Relay on need to be indicated with LED. Sketch 3 Touchscreen control connected to raspberry pi of four ssr relays with Arduino nano. Power usage per relay should also be included. 3 previously starded but not finished sketches is available