Overview

We plan to modify a GE Profile refrigerator such that we can control the temperature of the fridge and freezer section independently.

Fridge: GE Profile Fridge with Brita

Parts

• Sonoff uController - Sonoff Basic?
• 2x DS18B20 temperature probe
• 4.7K resistor
• Damper Motor & assembly

Design

We are going to add a motorized damper which will allow us to regulate temperature for the freezer and fridge separately. 

This will allow us to:

• call for cold when the freezer is not at it's desired temp.
• close the damper when the fridge section reaches it's desired temperature

Damper

Dimensions: 4 1/6" x 3/4" or 104 mm x 19 mm

Pictures