QTR-8RC 8-Channel Reflectance Line Sensor Array
Prices updated: 12 Oct 2026
Compare prices
| Store | product | Price | View in store |
|---|---|---|---|
 MicroohmCheapest | QTR-8RC 8 Channel Line Tracker Reflectance Sensor Array | 135 EGP200 | View in store |
 Makers Electronics | QTR-8RC Reflectance Line Follower Sensor Array | 150 EGP | View in store |
Price history
Lowest daily price, last 90 days
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Lowest price recorded: 135 EGP
About this product
An 8-channel reflectance sensor array with eight IR LED and phototransistor pairs spaced 0.375 inches apart, used to detect lines and edges in line-following robots. It provides digital outputs read through timed pulses and supports LED control to save power.
Specifications
- Number of channels
- 8
- Sensor spacing
- 0.375 in (9.525 mm)
- Sensing type
- IR reflectance (LED + phototransistor)
- Operating voltage
- 3.3 V to 5 V
- Output type
- Digital (timed pulse / RC)
- LED control
- Yes (LEDON pin)
Frequently asked questions
What is the price of QTR-8RC 8-Channel Reflectance Line Sensor Array in Egypt?
QTR-8RC 8-Channel Reflectance Line Sensor Array currently costs between 135 and 150 EGP across 2 offers in Egypt.
Where can I buy QTR-8RC 8-Channel Reflectance Line Sensor Array in Egypt?
QTR-8RC 8-Channel Reflectance Line Sensor Array is available from Microohm and Makers Electronics. Compare the offers above to find the best price.
How do I read the sensor values?
Use the RC method: drive each output pin high to charge the sensor capacitor, switch it to input, then time how long the pin takes to fall low. Brighter (more reflective) surfaces give a longer discharge time. The Pololu QTRSensors library handles this for Arduino and similar boards.
What is the LEDON pin for?
The LEDON pin switches the IR emitter LEDs on and off. Connecting it to a microcontroller pin lets your code turn the LEDs off when the sensors are not in use, which saves power.
