Physical Inputs
Here are references for how to connect and code each physical input in your SparkFun Photon kit:
Ultrasonic Sensor (not standard part of SparkFun Photon kit, but your teacher may have added it)
OTHER SENSORS: There are references for other sensors such as RFID Reader, Fingerprint Scanner, and GPS Receiver in the old project guidebook. These references will eventually be transferred into this new code guidebook.