I am new at DIYer and want to build a home automation IoT platform that can water plants. I want to use the Raspberry Pi 3 as the platform and connect a soil moisture sensor, photo diode and Atmospheric Sensor Breakout. I will power an aquarium pump with 120 VAC that will be turned on and off with a Powerswitch tail 2. To get some info on the sensors I want to equip my design with a I2C OLED display. The design is included below. The Raspberry Pi will be connected using a GPIO Cobbler board.
Did I make any rookie mistakes? Especially on the I2C wiring.
The fritzing file can be downloaded here.