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QTRX-MD-01A-S Reflectance Sensor - 1-channel reflectance sensor with analog output
ID: 1201590
zł16.40
Tax included
zł13.33 tax excl.
A precision reflective sensor utilizing an IR diode and a phototransistor to measure light reflected from a surface. It offers an analog voltage output proportional to the reflected light and an optimal measurement range of 10 mm. Its low power consumption and compact size make it ideal for line-follower robots, edge detection systems, and educational projects. Pololu 4440
Description
QTRX-MD-01A-S Reflectance Sensor is a compact and high-precision reflectance sensor designed by Pololu for measuring light reflected from nearby surfaces. It features an IR LED and a phototransistor arranged for accurate detection of surface reflectivity changes. With integrated lenses, the sensor offers excellent sensitivity while maintaining minimal current consumption, making it ideal for applications such as robotics, production line object detection, and line-follower robots. It operates over a wide voltage range of 2.9 V to 5.5 V, with LED brightness adjustable independently of supply voltage, allowing flexible adaptation to various lighting conditions. The sensor provides an analog voltage output proportional to the reflected light intensity, simplifying integration with microcontrollers equipped with ADC inputs. The optimal sensing distance is 10 mm, but highly reflective surfaces can be detected at distances up to 30 mm.
Thanks to its compact size and lightweight design, the module can be easily installed in tight spaces and lightweight mobile platforms. This model features a side-mounted 4-pin JST SH connector, compatible with SparkFun Qwiic and Adafruit STEMMA QT cables (though not using the I²C interface), enabling quick, solder-free connections. The QTRX-MD-01A-S is ideal for line detection, edge sensing, distance measurement, or object presence detection systems. Its high accuracy and low power consumption (max. 5 mA) make it perfect for battery-powered projects.
Equipped with a high-performance QTRX sensor and built-in LED driver, this module ensures stable and consistent readings regardless of power supply variations. It is compatible with popular microcontroller platforms such as Arduino, Raspberry Pi, and other embedded systems. With its reliability, low heat emission, and precision, the QTRX-MD-01A-S is an excellent choice for advanced measurement, automation, and educational projects.
Features
- Sensor type: QTRX (IR LED + phototransistor with lenses)
- Number of sensors: 1
- Output type: Analog (0 V – VCC)
- Optimal sensing distance: 10 mm
- Maximum detection distance: up to 30 mm (for bright surfaces)
- Connector: Side-mounted JST SH 4-pin (Qwiic/STEMMA QT compatible, not I²C)
- Operating voltage: 2.9 V to 5.5 V DC
- Current consumption: 3.5 mA (typical), max. 5 mA
- Dimensions: 8.1 × 15.2 × 6.0 mm
- Weight: 0.4 g
1201590
Data sheet
- Type of sensor
- Fototranzystor
- Output type
- analog
- Number of sensors
- 1
- Power supply voltage
- 2,9 - 5,5 V
Manufacturer BTC Korporacja sp. z o. o. Lwowska 5 05-120 Legionowo Poland sprzedaz@kamami.pl 22 767 36 20
Responsible person BTC Korporacja sp. z o. o. Lwowska 5 05-120 Legionowo Poland sprzedaz@kamami.pl 22 767 36 20
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