PololuPololu· Electronics
QTR-3A Reflectance Sensor Array
Manufacturer part no. 2456
$8.19≈ 7.11 €
In stock — 264 units
- origin USA
- RoHS3
Estimated landed cost
| Item | €7.11 |
|---|---|
| Shipping | €25.00 |
| VAT (20%) | €6.42 |
| Total delivered | €38.53 |
Estimate for a single item delivered to mainland France, shipped from outside the EU: customs duty and clearance fees may apply and are charged by the carrier.
Volume pricing
| Qty | Unit price | Saving |
|---|---|---|
| ≥ 1 | $8.19 | |
| ≥ 5 | $7.53 | −8 % |
| ≥ 25 | $6.93 | −15 % |
Datasheets & documents
- 📄 Pololu QTR Reflectance Sensor Application Note
- 📄 Pololu AVR C/C++ Library User’s Guide
- 📄 Pololu AVR Library Command Reference
- 📄 Building Line Following and Line Maze Courses
- 📄 QTR-3A reflectance sensor array schematic diagram
- 📄 Datasheet for the Sharp GP2S60 compact reflective photointerrupter
- 📄 Dimension diagram of the QTR-3x Reflectance Sensor Array
- 📄 3D model of the QTR-3A Reflectance Sensor Array
- 📄 Guide utilisateur du senseur QTR (suiveur de ligne)
- 📄 mbed library for QTR sensors
- 📄 Arduino library for the Pololu QTR Reflectance Sensors
- 📄 Apeiros robot Kickstarter
- 📄 Paul's dead reckoning robot
Specifications (automatically extracted)
Electrical
| Current | 3 A |
Mechanical
| Weight | 0.6 g |
Other characteristics
| Supply current | 50 mA |
| Other pcb markings | 0J7448 |
| Pcb dev codes | irs07a |
| Size | 1.25″ × 0.3″ |
Description
This compact module packs three IR LED/phototransistor pairs onto a 1.25″ × 0.3″ board. The sensors are mounted on a 0.375″ pitch, making this array a great minimal sensing solution for a line-following robot. Each sensor provides a separate analog voltage output.
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