QTR-HD-09A Reflectance Sensor Array: 9-Channel, 4mm Pitch, Analog Output Category_Electronics/Misc Items Computer keyboards and keypads

Computer keyboards and keypads

communicate with phones (say for payment processing)

1KHz Delta-Sigma DAC

the SMA connector footprint is included in the design so that you can manually solder it to the board for your application

8mm display area

QTR-HD-09A Reflectance Sensor Array: 9-Channel, 4mm Pitch, Analog Output Category_Electronics/Misc Items Computer keyboards and keypadspitch sensors size (mm) output max current optimal range LED board 4 mm 9 37. 0 20. 0 analog 30 mA 155 mA 5 mm This array of IR LED phototransistor pairs is great for precisely identifying changes in reflectance (like line detection). It operates from 2. 9 V to 5. 5 V and offers dimmable brightness control independent of the supply voltage and separate controls for the odd and even emitters. In general, the closer the object, the higher the contrast