I was thinking of getting an Ultrasonic Maxbotix LV-EV sensor.
Looks like this would connect in similar fashion to the Sharp IRs do to a FEZ - using an analog pin, and the corresponding AnalogIn object in NETMF.
The question I have is this: How is the sensor reading started? Meaning:
(1) Are these sensors always running? So that when you do a AnalogIn.Read() and it just returns the last value.
(2) When you do a Read(), it sends a signal (that’s abstracted by NETMF/GHI) to the device, that starts the sensor reading process (in this case generate a sound wave and process the results)?