References

1.)  Lab Manual Preliminary Research and Design. (2017, August 18). Retrieved from https://osu.app.box.com/s/ter1ysxfl88vej3wezqleed30cymth1p

2.)  User Manual – Reflectance Sensors. (2017, August 18). Retrieved from https://osu.app.box.com/s/sc3936jdrdjb59xxf03i2tpez5npuf28