[elecena] Pololu QTR-HD-31A Reflectance Sensor Array: 31-Channel, 4mm Pitch, Analog Output - zmiany ceny QTR-HD-31A Reflectance Sensor Array: 31-Channel, 4mm Pitch, Analog Output.This array of IR LED/phototransistor pairs is great for precisely identifying changes in reflectance (like line detection). It operates from 2.9 V to 5.5 V and offers dimmable brightness control independent of the supply voltage. In general, the closer the object, the higher the contrast between light and dark readings, but high-reflectance objects are generally detectable out to around 50 mm. This version features the traditional-style QTR sensors without lenses. Pololu QTR-HD-31A Reflectance Sensor Array: 31-Channel, 4mm Pitch, Analog Output - 46.40 EUR https://elecena.pl/product/27740215/pololu-qtr-hd-31a-reflectance-sensor-array-31-channel-4mm-pitch-analog-output 2025-01-23 Pololu QTR-HD-31A Reflectance Sensor Array: 31-Channel, 4mm Pitch, Analog Output - 33.95 EUR https://elecena.pl/product/27740215/pololu-qtr-hd-31a-reflectance-sensor-array-31-channel-4mm-pitch-analog-output 2025-03-01 Pololu QTR-HD-31A Reflectance Sensor Array: 31-Channel, 4mm Pitch, Analog Output - 34.00 EUR https://elecena.pl/product/27740215/pololu-qtr-hd-31a-reflectance-sensor-array-31-channel-4mm-pitch-analog-output 2025-03-22 Pololu QTR-HD-31A Reflectance Sensor Array: 31-Channel, 4mm Pitch, Analog Output - 27.80 EUR https://elecena.pl/product/27740215/pololu-qtr-hd-31a-reflectance-sensor-array-31-channel-4mm-pitch-analog-output 2025-04-20 Pololu QTR-HD-31A Reflectance Sensor Array: 31-Channel, 4mm Pitch, Analog Output - 28.60 EUR https://elecena.pl/product/27740215/pololu-qtr-hd-31a-reflectance-sensor-array-31-channel-4mm-pitch-analog-output 2025-05-04 Pololu QTR-HD-31A Reflectance Sensor Array: 31-Channel, 4mm Pitch, Analog Output - 15.00 EUR https://elecena.pl/product/27740215/pololu-qtr-hd-31a-reflectance-sensor-array-31-channel-4mm-pitch-analog-output 2025-06-04 Pololu QTR-HD-31A Reflectance Sensor Array: 31-Channel, 4mm Pitch, Analog Output - 27.80 EUR https://elecena.pl/product/27740215/pololu-qtr-hd-31a-reflectance-sensor-array-31-channel-4mm-pitch-analog-output 2025-06-18 Pololu QTR-HD-31A Reflectance Sensor Array: 31-Channel, 4mm Pitch, Analog Output - 28.60 EUR https://elecena.pl/product/27740215/pololu-qtr-hd-31a-reflectance-sensor-array-31-channel-4mm-pitch-analog-output 2025-06-21 Pololu QTR-HD-31A Reflectance Sensor Array: 31-Channel, 4mm Pitch, Analog Output - 32.70 EUR https://elecena.pl/product/27740215/pololu-qtr-hd-31a-reflectance-sensor-array-31-channel-4mm-pitch-analog-output 2025-09-28 Pololu QTR-HD-31A Reflectance Sensor Array: 31-Channel, 4mm Pitch, Analog Output - 30.50 EUR https://elecena.pl/product/27740215/pololu-qtr-hd-31a-reflectance-sensor-array-31-channel-4mm-pitch-analog-output 2025-11-26 Pololu QTR-HD-31A Reflectance Sensor Array: 31-Channel, 4mm Pitch, Analog Output - 30.30 EUR https://elecena.pl/product/27740215/pololu-qtr-hd-31a-reflectance-sensor-array-31-channel-4mm-pitch-analog-output 2025-11-29 Pololu QTR-HD-31A Reflectance Sensor Array: 31-Channel, 4mm Pitch, Analog Output - 30.10 EUR https://elecena.pl/product/27740215/pololu-qtr-hd-31a-reflectance-sensor-array-31-channel-4mm-pitch-analog-output 2025-12-04 Pololu QTR-HD-31A Reflectance Sensor Array: 31-Channel, 4mm Pitch, Analog Output - 30.20 EUR https://elecena.pl/product/27740215/pololu-qtr-hd-31a-reflectance-sensor-array-31-channel-4mm-pitch-analog-output 2025-12-07 Pololu QTR-HD-31A Reflectance Sensor Array: 31-Channel, 4mm Pitch, Analog Output - 29.90 EUR https://elecena.pl/product/27740215/pololu-qtr-hd-31a-reflectance-sensor-array-31-channel-4mm-pitch-analog-output 2025-12-12 Pololu QTR-HD-31A Reflectance Sensor Array: 31-Channel, 4mm Pitch, Analog Output - 30.00 EUR https://elecena.pl/product/27740215/pololu-qtr-hd-31a-reflectance-sensor-array-31-channel-4mm-pitch-analog-output 2025-12-20 Pololu QTR-HD-31A Reflectance Sensor Array: 31-Channel, 4mm Pitch, Analog Output - 29.80 EUR https://elecena.pl/product/27740215/pololu-qtr-hd-31a-reflectance-sensor-array-31-channel-4mm-pitch-analog-output 2025-12-26 Pololu QTR-HD-31A Reflectance Sensor Array: 31-Channel, 4mm Pitch, Analog Output - 29.90 EUR https://elecena.pl/product/27740215/pololu-qtr-hd-31a-reflectance-sensor-array-31-channel-4mm-pitch-analog-output 2025-12-31 Pololu QTR-HD-31A Reflectance Sensor Array: 31-Channel, 4mm Pitch, Analog Output - 30.00 EUR https://elecena.pl/product/27740215/pololu-qtr-hd-31a-reflectance-sensor-array-31-channel-4mm-pitch-analog-output 2026-01-03 Pololu QTR-HD-31A Reflectance Sensor Array: 31-Channel, 4mm Pitch, Analog Output - 30.20 EUR https://elecena.pl/product/27740215/pololu-qtr-hd-31a-reflectance-sensor-array-31-channel-4mm-pitch-analog-output 2026-01-11 Pololu QTR-HD-31A Reflectance Sensor Array: 31-Channel, 4mm Pitch, Analog Output - 30.30 EUR https://elecena.pl/product/27740215/pololu-qtr-hd-31a-reflectance-sensor-array-31-channel-4mm-pitch-analog-output 2026-01-19 Pololu QTR-HD-31A Reflectance Sensor Array: 31-Channel, 4mm Pitch, Analog Output - 27.50 EUR https://elecena.pl/product/27740215/pololu-qtr-hd-31a-reflectance-sensor-array-31-channel-4mm-pitch-analog-output 2026-01-24 Pololu QTR-HD-31A Reflectance Sensor Array: 31-Channel, 4mm Pitch, Analog Output - 29.40 EUR https://elecena.pl/product/27740215/pololu-qtr-hd-31a-reflectance-sensor-array-31-channel-4mm-pitch-analog-output 2026-01-30 Pololu QTR-HD-31A Reflectance Sensor Array: 31-Channel, 4mm Pitch, Analog Output - 29.50 EUR https://elecena.pl/product/27740215/pololu-qtr-hd-31a-reflectance-sensor-array-31-channel-4mm-pitch-analog-output 2026-02-02 Pololu QTR-HD-31A Reflectance Sensor Array: 31-Channel, 4mm Pitch, Analog Output - 29.70 EUR https://elecena.pl/product/27740215/pololu-qtr-hd-31a-reflectance-sensor-array-31-channel-4mm-pitch-analog-output 2026-02-04 Pololu QTR-HD-31A Reflectance Sensor Array: 31-Channel, 4mm Pitch, Analog Output - 38.70 EUR https://elecena.pl/product/27740215/pololu-qtr-hd-31a-reflectance-sensor-array-31-channel-4mm-pitch-analog-output 2026-02-07 Pololu QTR-HD-31A Reflectance Sensor Array: 31-Channel, 4mm Pitch, Analog Output - 38.65 EUR https://elecena.pl/product/27740215/pololu-qtr-hd-31a-reflectance-sensor-array-31-channel-4mm-pitch-analog-output 2026-02-10 Pololu QTR-HD-31A Reflectance Sensor Array: 31-Channel, 4mm Pitch, Analog Output - 38.40 EUR https://elecena.pl/product/27740215/pololu-qtr-hd-31a-reflectance-sensor-array-31-channel-4mm-pitch-analog-output 2026-02-12 Pololu QTR-HD-31A Reflectance Sensor Array: 31-Channel, 4mm Pitch, Analog Output - 38.50 EUR https://elecena.pl/product/27740215/pololu-qtr-hd-31a-reflectance-sensor-array-31-channel-4mm-pitch-analog-output 2026-02-15 Pololu QTR-HD-31A Reflectance Sensor Array: 31-Channel, 4mm Pitch, Analog Output - 38.70 EUR https://elecena.pl/product/27740215/pololu-qtr-hd-31a-reflectance-sensor-array-31-channel-4mm-pitch-analog-output 2026-02-20 Pololu QTR-HD-31A Reflectance Sensor Array: 31-Channel, 4mm Pitch, Analog Output - 38.75 EUR https://elecena.pl/product/27740215/pololu-qtr-hd-31a-reflectance-sensor-array-31-channel-4mm-pitch-analog-output 2026-02-25 Pololu QTR-HD-31A Reflectance Sensor Array: 31-Channel, 4mm Pitch, Analog Output - 38.70 EUR https://elecena.pl/product/27740215/pololu-qtr-hd-31a-reflectance-sensor-array-31-channel-4mm-pitch-analog-output 2026-02-28 Pololu QTR-HD-31A Reflectance Sensor Array: 31-Channel, 4mm Pitch, Analog Output - 39.30 EUR https://elecena.pl/product/27740215/pololu-qtr-hd-31a-reflectance-sensor-array-31-channel-4mm-pitch-analog-output 2026-03-04 Pololu QTR-HD-31A Reflectance Sensor Array: 31-Channel, 4mm Pitch, Analog Output - 39.35 EUR https://elecena.pl/product/27740215/pololu-qtr-hd-31a-reflectance-sensor-array-31-channel-4mm-pitch-analog-output 2026-03-07 Pololu QTR-HD-31A Reflectance Sensor Array: 31-Channel, 4mm Pitch, Analog Output - 39.55 EUR https://elecena.pl/product/27740215/pololu-qtr-hd-31a-reflectance-sensor-array-31-channel-4mm-pitch-analog-output 2026-03-09 Pololu QTR-HD-31A Reflectance Sensor Array: 31-Channel, 4mm Pitch, Analog Output - 39.25 EUR https://elecena.pl/product/27740215/pololu-qtr-hd-31a-reflectance-sensor-array-31-channel-4mm-pitch-analog-output 2026-03-11 Pololu QTR-HD-31A Reflectance Sensor Array: 31-Channel, 4mm Pitch, Analog Output - 39.60 EUR https://elecena.pl/product/27740215/pololu-qtr-hd-31a-reflectance-sensor-array-31-channel-4mm-pitch-analog-output 2026-03-14 Pololu QTR-HD-31A Reflectance Sensor Array: 31-Channel, 4mm Pitch, Analog Output - 39.95 EUR https://elecena.pl/product/27740215/pololu-qtr-hd-31a-reflectance-sensor-array-31-channel-4mm-pitch-analog-output 2026-03-16 Pololu QTR-HD-31A Reflectance Sensor Array: 31-Channel, 4mm Pitch, Analog Output - 39.60 EUR https://elecena.pl/product/27740215/pololu-qtr-hd-31a-reflectance-sensor-array-31-channel-4mm-pitch-analog-output 2026-03-18 Pololu QTR-HD-31A Reflectance Sensor Array: 31-Channel, 4mm Pitch, Analog Output - 39.55 EUR https://elecena.pl/product/27740215/pololu-qtr-hd-31a-reflectance-sensor-array-31-channel-4mm-pitch-analog-output 2026-03-21 Pololu QTR-HD-31A Reflectance Sensor Array: 31-Channel, 4mm Pitch, Analog Output - 39.40 EUR https://elecena.pl/product/27740215/pololu-qtr-hd-31a-reflectance-sensor-array-31-channel-4mm-pitch-analog-output 2026-03-25 Pololu QTR-HD-31A Reflectance Sensor Array: 31-Channel, 4mm Pitch, Analog Output - 39.60 EUR https://elecena.pl/product/27740215/pololu-qtr-hd-31a-reflectance-sensor-array-31-channel-4mm-pitch-analog-output 2026-03-28 Pololu QTR-HD-31A Reflectance Sensor Array: 31-Channel, 4mm Pitch, Analog Output - 39.65 EUR https://elecena.pl/product/27740215/pololu-qtr-hd-31a-reflectance-sensor-array-31-channel-4mm-pitch-analog-output 2026-03-30 Pololu QTR-HD-31A Reflectance Sensor Array: 31-Channel, 4mm Pitch, Analog Output - 39.60 EUR https://elecena.pl/product/27740215/pololu-qtr-hd-31a-reflectance-sensor-array-31-channel-4mm-pitch-analog-output 2026-04-04 Pololu QTR-HD-31A Reflectance Sensor Array: 31-Channel, 4mm Pitch, Analog Output - 44.95 EUR https://elecena.pl/product/27740215/pololu-qtr-hd-31a-reflectance-sensor-array-31-channel-4mm-pitch-analog-output 2026-04-12 Pololu QTR-HD-31A Reflectance Sensor Array: 31-Channel, 4mm Pitch, Analog Output - 45.10 EUR https://elecena.pl/product/27740215/pololu-qtr-hd-31a-reflectance-sensor-array-31-channel-4mm-pitch-analog-output 2026-04-14 Pololu QTR-HD-31A Reflectance Sensor Array: 31-Channel, 4mm Pitch, Analog Output - 44.65 EUR https://elecena.pl/product/27740215/pololu-qtr-hd-31a-reflectance-sensor-array-31-channel-4mm-pitch-analog-output 2026-04-16 Pololu QTR-HD-31A Reflectance Sensor Array: 31-Channel, 4mm Pitch, Analog Output - 44.70 EUR https://elecena.pl/product/27740215/pololu-qtr-hd-31a-reflectance-sensor-array-31-channel-4mm-pitch-analog-output 2026-04-18 Pololu QTR-HD-31A Reflectance Sensor Array: 31-Channel, 4mm Pitch, Analog Output - 45.05 EUR https://elecena.pl/product/27740215/pololu-qtr-hd-31a-reflectance-sensor-array-31-channel-4mm-pitch-analog-output 2026-04-23 Pololu QTR-HD-31A Reflectance Sensor Array: 31-Channel, 4mm Pitch, Analog Output - 45.00 EUR https://elecena.pl/product/27740215/pololu-qtr-hd-31a-reflectance-sensor-array-31-channel-4mm-pitch-analog-output 2026-04-25 Pololu QTR-HD-31A Reflectance Sensor Array: 31-Channel, 4mm Pitch, Analog Output - 44.90 EUR https://elecena.pl/product/27740215/pololu-qtr-hd-31a-reflectance-sensor-array-31-channel-4mm-pitch-analog-output 2026-04-28 Pololu QTR-HD-31A Reflectance Sensor Array: 31-Channel, 4mm Pitch, Analog Output - 44.95 EUR https://elecena.pl/product/27740215/pololu-qtr-hd-31a-reflectance-sensor-array-31-channel-4mm-pitch-analog-output 2026-05-02 Pololu QTR-HD-31A Reflectance Sensor Array: 31-Channel, 4mm Pitch, Analog Output - 45.05 EUR https://elecena.pl/product/27740215/pololu-qtr-hd-31a-reflectance-sensor-array-31-channel-4mm-pitch-analog-output 2026-05-06 Pololu QTR-HD-31A Reflectance Sensor Array: 31-Channel, 4mm Pitch, Analog Output - 44.75 EUR https://elecena.pl/product/27740215/pololu-qtr-hd-31a-reflectance-sensor-array-31-channel-4mm-pitch-analog-output 2026-05-10 Pololu QTR-HD-31A Reflectance Sensor Array: 31-Channel, 4mm Pitch, Analog Output - 44.90 EUR https://elecena.pl/product/27740215/pololu-qtr-hd-31a-reflectance-sensor-array-31-channel-4mm-pitch-analog-output 2026-05-14 Pololu QTR-HD-31A Reflectance Sensor Array: 31-Channel, 4mm Pitch, Analog Output - 45.30 EUR https://elecena.pl/product/27740215/pololu-qtr-hd-31a-reflectance-sensor-array-31-channel-4mm-pitch-analog-output 2026-05-17 Pololu QTR-HD-31A Reflectance Sensor Array: 31-Channel, 4mm Pitch, Analog Output - 45.40 EUR https://elecena.pl/product/27740215/pololu-qtr-hd-31a-reflectance-sensor-array-31-channel-4mm-pitch-analog-output 2026-05-21 Pololu QTR-HD-31A Reflectance Sensor Array: 31-Channel, 4mm Pitch, Analog Output - 45.30 EUR https://elecena.pl/product/27740215/pololu-qtr-hd-31a-reflectance-sensor-array-31-channel-4mm-pitch-analog-output 2026-05-25 Pololu QTR-HD-31A Reflectance Sensor Array: 31-Channel, 4mm Pitch, Analog Output - 45.25 EUR https://elecena.pl/product/27740215/pololu-qtr-hd-31a-reflectance-sensor-array-31-channel-4mm-pitch-analog-output 2026-05-29 Pololu QTR-HD-31A Reflectance Sensor Array: 31-Channel, 4mm Pitch, Analog Output - 45.30 EUR https://elecena.pl/product/27740215/pololu-qtr-hd-31a-reflectance-sensor-array-31-channel-4mm-pitch-analog-output 2026-06-02 Pololu QTR-HD-31A Reflectance Sensor Array: 31-Channel, 4mm Pitch, Analog Output - 45.60 EUR https://elecena.pl/product/27740215/pololu-qtr-hd-31a-reflectance-sensor-array-31-channel-4mm-pitch-analog-output 2026-06-06 Pololu QTR-HD-31A Reflectance Sensor Array: 31-Channel, 4mm Pitch, Analog Output - 45.55 EUR https://elecena.pl/product/27740215/pololu-qtr-hd-31a-reflectance-sensor-array-31-channel-4mm-pitch-analog-output 2026-06-14 Pololu QTR-HD-31A Reflectance Sensor Array: 31-Channel, 4mm Pitch, Analog Output - 45.60 EUR https://elecena.pl/product/27740215/pololu-qtr-hd-31a-reflectance-sensor-array-31-channel-4mm-pitch-analog-output 2026-06-18 Pololu QTR-HD-31A Reflectance Sensor Array: 31-Channel, 4mm Pitch, Analog Output - 45.95 EUR https://elecena.pl/product/27740215/pololu-qtr-hd-31a-reflectance-sensor-array-31-channel-4mm-pitch-analog-output 2026-06-22 Pololu QTR-HD-31A Reflectance Sensor Array: 31-Channel, 4mm Pitch, Analog Output - 46.40 EUR https://elecena.pl/product/27740215/pololu-qtr-hd-31a-reflectance-sensor-array-31-channel-4mm-pitch-analog-output 2026-06-25 Pololu QTR-HD-31A Reflectance Sensor Array: 31-Channel, 4mm Pitch, Analog Output - 48.25 EUR https://elecena.pl/product/27740215/pololu-qtr-hd-31a-reflectance-sensor-array-31-channel-4mm-pitch-analog-output 2026-06-29