產品說明2
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Pololu Distance Sensor with Pulse Width Output, 50cm Max
PI4064，Pololu 距離感測器（最大 50mm）Distance Sensor帶脈衝寬度輸出
This small lidar-based distance sensor reports the distance of objects up to about 50 cm (20″) away with a pulsed signal similar to a hobby servo control signal. A digital microcontroller pin can be used to time the length of each high pulse, which encodes the measured distance. The sensor works over an input voltage range of 3.0 V to 5.5 V, and the 0.1″ pin spacing makes it easy to use with standard solderless breadboards and 0.1″ perfboards.
［注意］：50 cm 的最大範圍僅適用於良好環境條件下的高反射率物體。反射率較低的目標或較差的環境條件將減小最大範圍。
Alternatives available with variations in these parameter(s)：
可用的替代方案具有以下參數的變化：50cm、130cm、300cm
【Specifications】規格：
- Operating voltage： 3V to 5.5V
- Current consumption： 30mA (typical) when enabled, 0.4 mA when disabled
- Maximum range（最大範圍）： approximately 50 cm (20″)
(for high-reflectivity targets in good ambient conditions; lower-reflectivity targets or poor ambient conditions will reduce the maximum detection range) - Minimum range（最小範圍）： 1cm (for accurate measurement);
< 5mm (for detection) - Update rate：50Hz to 110Hz (20 ms to 9 ms period)
- Field of view (FOV)視角： 15° typical; can vary with object reflectance and ambient conditions
- Output type： digital pulse width
- Dimensions尺寸： 0.85″ × 0.35″ × 0.122″ (21.6 × 8.9 × 3.1 mm); see the dimension diagram (191k pdf) for more information
- Weight： 0.014 oz (0.4 g)
【Using the sensor】：
Three connections are necessary to use this module: VIN, GND, and OUT. These pins are accessible through a row of 0.1″-pitch through holes, which work with standard 0.1″ (2.54 mm) male headers and 0.1″ female headers (available separately). The VIN pin should be connected to a 3 V to 5.5 V source, and GND should be connected to 0 volts. The sensor outputs its digital pulses on the OUT pin. The low level of the pulses is 0 V, and the high level is VIN. A red LED on the back side of the board also lights whenever an object is detected (the closer the object, the brighter the LED).
The board has an optional ENABLE pin that can be driven low to put it into a low-power state that consumes approximately 0.4 mA. This pin can be accessed through a via or its neighboring surface-mount pad on the back side labeled “EN” on the silkscreen. The ENABLE pin is pulled up to VIN, enabling the sensor by default.
產品規格
【Dimensions】
- Size：0.85″ × 0.35″ × 0.122″
- Weight： 0.4 g
【General specifications】
- Resolution： 3 mm
- Maximum range： 50 cm1
- Sampling rate： 50 Hz2
- Minimum operating voltage： 3.0 V
- Maximum operating voltage： 5.5 V
- Supply current： 30 mA3
- Output type： digital pulse width
【Identifying markings】
- PCB dev codes： irs16a
- Other PCB markings： 0J13085
［Notes］：
１．This maximum is only achievable for high-reflectance objects in good ambient conditions; lower-reflectivity targets or poor ambient conditions will reduce the maximum range.
２．Minimum.
３．Typical average current draw when enabled; disabling via the EN pin reduces it to around 0.4 mA.
