Pololu QTR-8RC Manuel d'utilisateur

QTR-8A and QTR-8RC ReflectanceSensor Array User's Guide1. Overview and General Specifications . . . . . . . . . . . . . . . . .

6. Breaking into Two SubmodulesIf you don’t need or cannot fit all eight sensors, the QTR-8x arrays can each be separated into two smaller sensorarray

If you are operating at a Vcc of 3.3 V, short those two pins together with a piece of wire. With a connection in placebetween these two pins, the two-

7. Additional ConsiderationsAs the sensing distance of your sensors increases, the distinction between black and white surfaces starts to decrease.Thi

1. Overview and General SpecificationsThe Pololu QTR-8A [http://www.pololu.com/product/960] and QTR-8RC [http://www.pololu.com/product/961] reflectanc

• Maximum recommended sensing distance for the QTR-8A: 0.25" (6 mm)• Maximum recommended sensing distance for the QTR-8RC: 0.375" (9.5 mm)•

2. Contacting PololuYou can check the QTR-8A page [http://www.pololu.com/product/960] or QTR-8RC page [http://www.pololu.com/product/961] for addition

3. Physical CharacteristicsBoth the QTR-8A and QTR-8RC have the same physical characteristics. Each array measures 2.95" long by 0.50"wide a

4. Distinguishing the QTR-8A from the QTR-8RCThe QTR-8A sensor array has a different output format from the QTR-8RC, so it is important you know which

5. Module ConnectionsThe QTR-8x reflectance sensor arrays are designed to provide some connection flexibility. The pins are standard 0.1"spacing

Note: Do not short the 3.3V BYPASS pins together while using a Vcc of 5 V. While this would makethe LEDs even brighter, it would exceed their current

depends on your microcontroller’s I/O line characteristics. Meaningful results can be available within 1 ms in typicalcases (i.e. when not trying to m