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- Manufacturer: Pololu
- Order number: EXP-R25-1199
- Manufacturer part number: 4307
- Availability: 3
- country of origin: US
- HS code: 90275000
- Weight (kg): 0.002
This sensor module has seven IR LED/phototransistor pairs mounted on a high-density 4 mm pitch, making it well suited for precisely identifying changes in contrast/reflectance (like line-detection). These units offer dimmable brightness control independent of the 2.9 V to 5.5 V supply voltage, with optional separate control of the odd and even sensor channel emitters. The optimal sensing distance is approximately 1 cm or less, but high-reflectance objects are generally detectable out to around 5 cm.
This version features high-performance QTRX sensors with lenses, and each sensor provides a separate digital I/O-measurable output. Max LED current is set to 3.5 mA, and the max board current is 15 mA.
- Dimensions: 29 × 20 × 0.3 mm
- Operating voltage: 2.9 V to 5.5 V
- Max LED current: 3.5 mA
- Max board current: 15 mA
- Output format: 7 digital I/O-compatible signals that can be read as a timed high pulse
- Optimal sensing distance: 1 cm
- Maximum recommended sensing distance: 5 cm
- Weight: 1.6 g