QTR-MD-01RC-S Reflectance Sensor 1-Channel 8 mm RC - Pololu 4140
ID: 1203003
zł15.09
Tax included
zł12.27 tax excl.
Single-channel reflectance sensor from the QTR-MD series, 8 mm wide, featuring an RC output and a side-entry connector. Designed for line detection, surface contrast measurement, and edge detection in mobile robotics and automation systems. Pololu 4140
Description
The Pololu 4140 QTR-MD-01RC-S module uses a 940 nm IR emitter and a phototransistor to measure reflected light from a surface. The RC output allows measurement via a microcontroller’s digital I/O pin – the discharge time depends on the reflectance level. Lighter surfaces result in shorter pulse times, while darker surfaces produce longer discharge times.
The maximum sensing range is 30 mm, with an optimal working distance of approximately 5 mm, enabling stable and repeatable performance in line-following applications. The 2.9–5.5 V supply voltage range ensures compatibility with common 3.3 V and 5 V microcontrollers.
The IR LED current can be dynamically adjusted across 32 dimming levels, allowing adaptation to ambient lighting conditions and reduced power consumption. Maximum current draw at full LED brightness reaches 32 mA.
Compact dimensions and a 4-pin JST SH side-entry connector simplify integration into small mobile platforms and support convenient cable routing parallel to the PCB.
Features
- Dimensions: 8.1 × 15.2 × 5.5 mm
- Weight: 0.4 g
- Sensor type: QTR
- Number of channels: 1
- Output type: RC (measurable via digital I/O)
- Maximum range: 30 mm
- Optimal range: 5 mm
- Operating voltage range: 2.9–5.5 V
- Connector: side-entry, 4-pin JST SH
- IR LED current: 30 mA (adjustable, 32 levels)
- Peak wavelength: 940 nm
- Maximum current draw: 32 mA (at maximum LED brightness)
- PCB dev code: irs21c3
- Other PCB marking: 0J158523
1203003
Data sheet
- Type of sensor
- QTRX
- Output type
- digital
- 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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