The QTR-1RC reflectance sensor carries a single infrared LED and phototransistor pair in an inexpensive, tiny 0.5" x 0.3" module that can be mounted almost anywhere and is great for edge detection and line following.

QTR-1RC and QTR-L-1RC reflectance sensor schematic diagram. To use the sensor, you must first charge the output node by applying a voltage to the OUT pin. You can then read the reflectance by withdrawing that externally applied voltage on the OUT pin and timing how long it takes the output voltage to decay due to the integrated phototransistor.

The QTR­1RC reflectance sensor carries a single infrared LED and phototransistor pair in an inexpensive, tiny 0.5" x 0.3" module that can be mounted almost anywhere and is great for edge detection and line following.

The Pololu QTR-1RC Reflectance Sensor carries a single infrared LED and phototransistor pair in an inexpensive, tiny 0.5" x 0.3" sensor module that can be mounted almost anywhere and is great for edge detection and line following applications. The LED current-limiting resistor is set to deliver approximately 20-25 mA to the LED when VIN is 5 V.

2014年6月15日 · The Pololu QTR-1RC reflectance sensor carries a single infrared LED and phototransistor pair. The phototransistor uses a capacitor discharge circuit that allows a digital I/O line on a microcontroller to take an analog reading of reflected IR by measuring the discharge time of the capacitor.

QTR - 1RC Sensor de Linea Digital x 2 Piezas, lleva un solo LED infrarrojo y un Fototransistor, es un pequeño módulo de 13mm x 8mm que se puede montar en casi cualquier lugar y es ideal para la detección de bordes y aplicaciones de robots seguidores de línea.

Sensor de reflexión QRT-1RC. Pack con 2 sensores Digital. Dimensiones: 0.3″ x 0.5″ x 0.1″ (sin clavijas de cabezal opcionales instaladas) Corriente de consumo: 17 mA. Distancia de detección: 0.125″ (3mm) Distancia detección máxima: 0.25″ (6mm) Peso: 0.008 oz (0.2 g) Leer mas... En Moviltronics S.A.S.

2019年3月15日 · The QTRSensors library supports Pololu's second-generation dimmable QTR and QTRX reflectance sensor boards, as well as older QTR sensors. Before continuing, careful reading of the QTR Reflectance Sensor Application Note is recommended.

The QTR-1RC reflectance sensor carries a single infrared LED and phototransistor pair in an inexpensive, tiny 0.5" x 0.3" module that can be mounted almost anywhere and is great for edge detection and line following. The output is designed to be measured by a digital I/O line.

El sensor de reflectancia QTR-1RC lleva un solo LED infrarrojo y un par de fototransistores en un módulo diminuto y económico de 0,5″ x 0,3″ que se puede montar en casi cualquier lugar y es excelente para la detección de bordes y el seguimiento de líneas. La salida está diseñada para ser medida por una línea de E/S digital.