
Pololu's QTRX-HD-31, from their own CAD: a 125.00 × 16.50 mm board reading 31 channels on a 4 mm pitch, with 40 pads on the 0.1 inch pitch. The A (analog) and RC (digital) versions share this board.
One of the QTR Reflectance Sensor family.
- Made by
Pololu
- Kind
- Circuit board (PCB)
- Licence
- CC-BY-SA-4.0
- Keywords
- pololu, qtr, reflectance, sensor, line, infrared, ir, follower, qtrx, hd, qtrx-hd-31, analog, rc, low current
| Overall size (X × Y × Z) | 125 × 16.5 × 2.9 mm |
|---|---|
| PCB size | 125 × 16.5 mm |
| PCB thickness | 1.6 mm |
| Mounting holes | 4 × Ø2.2 mm |
| Through-hole pads | 40 |
| Components | 125 |
| Function | sensor |
| Supply voltage | 2.9-5.5 V |
| Current | 68 mA max (all LEDs on at full brightness) |
| Channels | 31 |
| Range | up to 50 mm, 10 mm optimal |
| Weight | 8.5 g |
| Pitch | 4 mm |
| Qty | Part | Value | References | Datasheet |
|---|---|---|---|---|
| × 42 | SMD Capacitor0603 | B11, B12, B13, B14, B15, B16, B19, B20, B30, B31, B32, B64, B65, B66, B67, B68, B69, B70, B71, B72, B73, B74, B75, B76, B77, B78, B79, B80, B81, B82, B83, B84, B85, B86, B87, B88, B89, B90, B91, B92, B93, B94 | X7R SMD MLCC series datasheet (KEMET) | |
| × 42 | SMD Resistor0603 | B1, B17, B18, B21, B22, B23, B24, B25, B26, B27, B29, B33, B34, B35, B36, B37, B38, B39, B40, B41, B42, B43, B44, B45, B46, B47, B48, B49, B50, B51, B52, B53, B54, B55, B56, B57, B58, B59, B60, B61, B62, B63 | RC_L series datasheet (Yageo) | |
| × 31 | Reflective SensorITR8307 | B95, B96, B97, B98, B99, B100, B101, B102, B103, B104, B105, B106, B107, B108, B109, B110, B111, B112, B113, B114, B115, B116, B117, B118, B119, B120, B121, B122, B123, B124, B125 | ITR8307 datasheet (Everlight) | |
| × 8 | SOTSOT-23W | B2, B3, B4, B5, B6, B7, B8, B9 | ||
| × 2 | SMD Capacitor0805 | B10, B28 | X7R SMD MLCC series datasheet (KEMET) |
Variations
QTR-HD-01 Reflectance SensorPololu
QTR-HD-02 Reflectance Sensor ArrayPololu
QTR-HD-03 Reflectance Sensor ArrayPololu
QTR-HD-04 Reflectance Sensor ArrayPololu
QTR-HD-05 Reflectance Sensor ArrayPololu
QTR-HD-06 Reflectance Sensor ArrayPololu
QTR-HD-07 Reflectance Sensor ArrayPololu
QTR-HD-09 Reflectance Sensor ArrayPololu
QTR-HD-11 Reflectance Sensor ArrayPololu
QTR-HD-13 Reflectance Sensor ArrayPololu
QTR-HD-15 Reflectance Sensor ArrayPololu
QTR-HD-25 Reflectance Sensor ArrayPololu
QTR-HD-31 Reflectance Sensor ArrayPololu
QTR-MD-01 Reflectance SensorPololu
QTR-MD-01-S Reflectance SensorPololu
QTR-MD-02 Reflectance Sensor ArrayPololu
QTR-MD-03 Reflectance Sensor ArrayPololu
QTR-MD-04 Reflectance Sensor ArrayPololu
QTR-MD-05 Reflectance Sensor ArrayPololu
QTR-MD-06 Reflectance Sensor ArrayPololu
QTR-MD-07 Reflectance Sensor ArrayPololu
QTR-MD-08 Reflectance Sensor ArrayPololu
QTR-MD-13 Reflectance Sensor ArrayPololu
QTR-MD-16 Reflectance Sensor ArrayPololu
QTRX-HD-01 Reflectance SensorPololu
QTRX-HD-02 Reflectance Sensor ArrayPololu
QTRX-HD-03 Reflectance Sensor ArrayPololu
QTRX-HD-04 Reflectance Sensor ArrayPololu
QTRX-HD-05 Reflectance Sensor ArrayPololu
QTRX-HD-06 Reflectance Sensor ArrayPololu
QTRX-HD-07 Reflectance Sensor ArrayPololu
QTRX-HD-09 Reflectance Sensor ArrayPololu
QTRX-HD-11 Reflectance Sensor ArrayPololu
QTRX-HD-13 Reflectance Sensor ArrayPololu
QTRX-HD-15 Reflectance Sensor ArrayPololu
QTRX-HD-25 Reflectance Sensor ArrayPololu
QTRX-HD-31 Reflectance Sensor ArrayPololu
QTRX-MD-01 Reflectance SensorPololu
QTRX-MD-01-S Reflectance SensorPololu
QTRX-MD-02 Reflectance Sensor ArrayPololu
QTRX-MD-03 Reflectance Sensor ArrayPololu
QTRX-MD-04 Reflectance Sensor ArrayPololu
QTRX-MD-05 Reflectance Sensor ArrayPololu
QTRX-MD-06 Reflectance Sensor ArrayPololu
QTRX-MD-07 Reflectance Sensor ArrayPololu
QTRX-MD-08 Reflectance Sensor ArrayPololu
QTRX-MD-13 Reflectance Sensor ArrayPololu
QTRX-MD-16 Reflectance Sensor ArrayPololu
QTR-1 Reflectance SensorPololu
QTR-3 Reflectance Sensor ArrayPololu
QTR-8 Reflectance Sensor ArrayPololu
QTR-L-1 Reflectance SensorPololu


