Ultrasonic-Sensors
EZ-0 VS HC-SR04!
MaxSonar EZ-0 and HC-SR04 sensors. The HC-SR04 costs $8.00 whereas The EZ-0 costs about $36 at Creatron in Toronto. Although the HC-SR04 isn’t bad, we ended up using the EZ-0 for Hive 2.0 because of its features.
Daniele Hopkins and Kyle Duffield 
