Il QTI Sensor e' un emittitore/ricevitore infrarosso in grado di riconoscere la differenza tra una superfice scura (scarsamente ottimale per riflettere IR) ed una superfice chiara (con alta riflessione di raggi IR). Questo piccoli sensori possono essere molto utili per line following,risoluzione labirinti o per i SumoBot ring.

What does QTI stand for?
Q = Charge
T = Transfer
I = Infrared

When your microcontroller measures the time it takes for the QTI's capacitor to decay, it's measuring a rate of charge transfer through an infrared phototransistor. This rate indicates how much infrared is reflecting off a nearby surface.

Features:

• Capable of analog or digital outputs
• No-contact surface sensing
• Unfocused for sensing diffused surfaces
• Daylight filter on sensor
• Easy to interface with any Parallax microcontroller

Key Specifications:

• Power requirements: 5 VDC
• Communication: Analog output of capacitor decay time depending on level of infrared reflectivity
• Dimensions: 1.25 x 0.37 in (31.7 x 9.4 mm)
• Operating temp range: -40 to +185 °F (-40 to +85 °C)