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0104110000068590
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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. In general, the closer the object, the higher the contrast between light and dark readings, but high-reflectance objects are generally detectable out to around 30 mm. This version features the traditional-style QTR sensors without lenses.
pitch x sensors | size (mm) |
output | max current | optimal range |
|
LED | board | ||||
8 mm x 2 | 13.0 x 20.0 | RC (digital) | 30 mA | 32 mA | 5 mm |
See description for more details about the product.
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● Dimensions: 13.0 x 20.0 x 2.5 mm (see the dimension diagram (1MB pdf) for more details)
● Operating voltage: 2.9 V to 5.5 V
● Sensor type: QTR
● Sensor count: 2
● Sensor pitch: 8 mm
● Full-brightness LED current: 30 mA (independent of supply voltage)
● Max board current: 32 mA
● Output format: digital I/O-compatible signals that can be read in parallel as timed high pulses
● Optimal sensing distance: 5 mm
● Maximum recommended sensing distance: 30 mm
● Weight: 0.7 g
QTR-MD-02RC Reflectance Sensor Array dimensions.
Size: | 13.0 x 20.0 x 2.5 mm |
Weight: | 0.7 g |
Maximum range: | 30 mm |
Optimal range: | 5 mm |
Minimum operating voltage: | 2.9 V |
Maximum operating voltage: | 5.5 V |
LED current: | 30 mA1 |
Peak wavelength: | 940 nm |
Maximum current draw: | 32 mA2 |
Sensor type: | QTR |
Sensor pitch: | 8.0 mm |
Sensor count: | 2 |
Output type: | RC (measurable by digital I/O) |
1 Can be dynamically reduced to any of 32 available dimming levels.
2 With all LEDs on at max brightness setting.
3 Note: this does not differentiate between the A and RC output types.
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