QTRX 4 Channel Reflectance Array 4mm Pitch
This array of IR LED/phototransistor pairs is great for precisely identifying changes in reflectance (like line detection). It operates from 2.9V to 5.5V 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 40mm. This version features high-performance, low-current QTRX sensors with lenses.
Quick Spec
- Operating Voltage: 2.9V to 5.5V
- Sensor Type: QTRX
- Sensor Count: 4
- Sensor Pitch: 4mm
- Full-brightness LED current: 3.5mA (independent of supply voltage)
- Max board current: 9mA
- Output Format: Analog Voltages (0 V to VCC)
- Optimal Sensing Distance: 10mm
- Maximum Recommended Sensing Distance: 40mm
- Weight: 1.0g
Dimensions
Pinout
Code
Resources
- Product Page
- Schematic
- Mechanical Diagram
- Pololu QTR Reflectance Sensor Application Note
- Arduino Library for the Pololu QTR Reflectance Sensors
Shipping List
- 1 X QTRX 4 Channel Reflectance Array 4mm Pitch
QTRX 4 Channel Reflectance Array 4mm Pitch
- Brand: Pololu Electronics
- Product Code: 4404
- Weight: 0.002kg
- Product Status : Active
Stock
| Warehouse | Stock Status | Location |
|---|---|---|
| Centurion | In Stock | FF129 |
| Stellenbosch | Limited Stock | A0179 |
We ship free of charge between branches to complete your order.
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R67.00 (Inc Tax: R77.05)
Tags: qtrx, 4, channel, reflectance, array, 4mm, distance, sensor, light


