Opis
dokładny opis czujnika znajduje sie na stronie: linkSDM-IO is a stable and measure the distance accurately ultrasonic module which provides 0cm – 1500mm non-contact measurement function,the ranging accuracy can reach to 3mm. Its performance can compare with SRF05/SRF02 ultrasonic distance measuring module, also it has non-blind (From 0-1cm the measurement results are not accurate when we test, but more than 1cm are accurate) designSpecification:Supply voltage 3.8 – 5.5 VGlobal Current Consumption 8 mAUltrasonic Frequency 40k HzMaximal Range 1500 mmMinimal Range 0 cmResolution 3 mmTrigger Pulse Width 10 μsSensor Angle 15 degreesOutline Dimension 37x20x15 mmWork Flow 1.The IO triggers ranging from 0 to the TRIG signal at least 10us; 2. The module automatically sends eight 40khz square wave, automatically detects whether a signal return; 3. Return signal back, through the ECHO output 10 signal, TRIG = 1 to the ECHO is the ultrasonic duration of time from launch to return. Test distance = (time * High speed of sound (340M / S)) / 2; 4. When the TRIG from 0 -> 1, the main control panel starts a timer to control the 10ms timeout control measurements, the time when the timeout 10ms 150us ECHO 0 still no signal that there is no obstacle.This module is very similar with the HC-SR04, but the shoter blind zone and the samller size, so yuo can use the arduino library we provided to drive this moudle the same as HC-SR04.
Detektory
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