< pan tyle="font- ize: 14px;">< trong>De cription:
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nWorking Voltage : 5V(DC)
nStatic Current: Le than 2mA.
nOutput Signal: Electric frequency ignal, high level 5V, low level 0V.
nSen or Angle: Not more than 15 degree .
nDetection Di tance: 2cm-450cm.
nHigh Preci ion: Up to 0.3cm
nInput Trigger Signal: 10u TTL impul e
nEch0 Signal : output TTL PWL ignal
nMode of connection:
nVCC
ntrig(T)
nech0(R)
nGND
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n< trong>U e Method:
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nSupply module with 5V, the output will be 5V while ob tacle in range, or 0V if not.The out pin of thi module i u ed a a witching output when anti-theft module, and without the feet when ranging module .
nNote : the module hould be in erted in the circuit before been power, which avoid producing high level of mi operation;if not, then power again.
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n< trong>Module Working Principle:
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n1. Adopt IO trigger through upplying at lea t 10u of high level ignal.
n2. The module automatically end eight 40khz quare wave and automatically detect whether receive the returning pul e ignal.
n3. If there i ignal returning, through outputting high level and the time of high level continuing i the time of that from the ultra onic tran mitting to receiving. Te t di tance =(high level time * ound (340M/S) / 2.
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n< trong>Note:
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nThi module i not uitable to connect with electric power, if you need to connect thi module with electronic power,then let the GND terminal of thi module to be connected fir t,otherwi e, it will affect the normal work of the module
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n< trong>Package Included:
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n< pan tyle="font- ize: 14px;">3 x HC-SR04 Ultra onic Module Di tance Mea uring Tran ducer
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