The intent of this design is to use what I have learned from Altium during the OBATS Project to develop my own circuit. As a cyclist, I find it extremely important to track the local air quality index. Cycling is demanding and cycling in unhealthy air can have long term negative health effects and be detrimental to your performance. Unfortunately the two applications I use for tracking air quality are inaccurate because their "weather stations" are generalized. and not precise to my exact location. 

Design a portable air quality sensor and understand pollution trends in my area. When configured for I2C communication with a Raspberry Pi computer, the data I retrieve can be presented using Python.

1. Discover similar products and understand their features

2. Characterize conditions and design requirements

3. Source components that suit the demands

4. Create schematic and include all libraries

5. Review and run DRC

6. Convert to PCB and modify peripherals and shape

7. Review and place order

Populating board before reflow soldering

After reflow, cleaning and checking for loose solder balls

After warmup, the sensor will send data on the data line to be displayed on the terminal.

Immediately displays the temperature and humididty from the Si7021 Sensor.