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3Pcs Geekcreit® Ultrasonic Module HC-SR04 Distance Measuring Ranging Transducer Sensor DC 5V 2-450cm Geekcreit for Arduino - products that work with official Arduino boards
1328
Shipping to: United States |
Express delivery: 7-12 business days |
Standard delivery: 15-25 business days
ደህንነቱ የተጠበቀ ክፍያ
ነፃ ስጦታ
የመላኪያ ፖሊሲ
የመመለሻ ፖሊሲነፃ ስጦታ
እንኳን ወደ Roymall በደህና መጡ፣ ለከፍተኛ ደረጃ የስጦታ መደብር ስጦታዎች የሚገዙበት ሙያዊ ድረ-ገፃችን። ድጋፍዎን ከፍ ብለን እናደርገዋለን እናም በእያንዳንዱ ግዢዎ ላይ ተጨማሪ ደስታ በማክበር አመስጋኝነታችንን ለመግለጽ እንፈልጋለን። ከእኛ ጋር በሚገዙበት ጊዜ፣ የሕይወት ደረጃዎን የሚያሻሽሉ ከፍተኛ ጥራት ያላቸውን ምርቶች ብቻ ሳይሆን እያንዳንዱን ትዕዛዝ የሚያገኙበትን ልዩ ነፃ ስጦታም ያገኛሉ። ስብስባችንን ለመጎብኘት እና ፍጹም ስጦታዎችዎን ለማግኘት ዝግጁ ነዎት? የከፍተኛ ደረጃ የስጦታ መደብር እቃዎችን ይምረጡ፣ ትዕዛዝዎን ያቅርቡ እና ከግዢዎ ጋር የሚመጣውን የነፃ ስጦታዎ ደስታ ይጠብቁ።የመላኪያ ፖሊሲ
ትዕዛዞችዎን ከተቀበልን በኋላ እቃዎችን ወደእርስዎ ለማድረስ እና በሰላም እንዲደርሱ እንሰራለን። የመላኪያ ዝርዝሮች በማረጋገጫ ኢሜልዎ ውስጥ ይሰጣሉ።በአብዛኛዎቹ ሁኔታዎች፣ ትዕዛዞች በ2 ቀናት ውስጥ ይቀርባሉ።በልዩ ሁኔታዎች፣ እንደሚከተለው ይዘገያል፡ ትዕዛዝን ቅዳሜ፣ እሑድ ወይም በዓላት ላይ ሲያቀርቡ፣ ለ2 ቀናት ይዘገያል..በአብዛኛው፣ ያለ የበረራ መዘግየት ወይም ሌሎች የአካባቢ ሁኔታዎች ተጽዕኖ ሳይኖርበት 5-7 የስራ ቀናት (ሰኞ እስከ ዓርብ) ይፈልጋል..የመላኪያ አገልግሎታችን በዓለም ዙሪያ ስለሆነ፣ የመላኪያ ጊዜዎች በአካባቢዎ ላይ የተመሰረቱ ስለሆኑ በርቀት ያሉ አካባቢዎች ወይም ሀገሮች ውስጥ ከሆኑ ጥቂት ጊዜ ይፈልጋል እና በትዕግስት ይጠብቁ።1. መመለሻ እና መለዋወጫ ፖሊሲ
እቃዎችን ከ roymall.com ብቻ እንቀበላለን። ከአካባቢያችን አከፋፋዮች ወይም ሌሎች ነጋዴዎች ከገዙ፣ ከእኛ ጎን መመለስ አይችሉም። የመጨረሻ ሽያጭ ዕቃዎች ወይም ነፃ ስጦታዎች ለመመለስ አይቀበሉም። ለመመለስ ብቁ ለመሆን፣ ዕቃዎ ያልተጠቀሙበት እና እንደተቀበሉት በተመሳሳይ ሁኔታ ውስጥ መሆን አለበት። እንዲሁም በዋናው ማሸጊያ ውስጥ መሆን አለበት።ከእኛ የመመለሻ መመሪያዎችን ከተቀበሉ በኋላ፣ የተመለሱ ዕቃዎችዎን ያሸጉ እና ጥቅልዎን በአካባቢያችሁ ፖስታ ቤት ወይም ሌላ ኩሪየር ላይ ያስቀምጡ።የተመለሰውን ወይም የተለወጠውን ዕቃ በ3-5 የስራ ቀናት ውስጥ ከተቀበልን በኋላ እንሰራለን። መመለሻው በራስ-ሰር ወደ ዋናው የክፍያ ዘዴዎ ይመለሳል።ምርቱ ልዩ ከተሰራ፣ ልዩ መጠን፣ ልዩ ቀለም ወይም ልዩ ህትመት ጨምሮ፣ �ንዳንድ መመለስ ወይም መለወጥ አይችልም።ተጨማሪ እርዳታ ከፈለጉ፣ እባክዎን ያግኙን። service@roymall.com ወይም Whatsapp: +447549870296
2.የመመለሻ ፖሊሲ
የተመለሰውን ጥቅል ከተቀበልን እና ከተፈተነ በኋላ ሙሉ መመለሻ ወይም 100% የማከማቻ ክሬዲት ያገኛሉ። መመለሻው በራስ-ሰር ወደ ዋናው የክፍያ ዘዴዎ ይመለሳል። እባክዎን ያስታውሱ የመላኪያ ወጪዎች እና ማንኛውም ታክስ ወይም ክፍያዎች መመለስ አይቻልም። ተጨማሪ የመላኪያ ወጪዎች ጥቅሉ ከተላከ በኋላ መመለስ አይቻልም። እነዚህን ክፍያዎች ለመክፈል እርስዎ ተጠያቂ ነዎት እና ትዕዛዙ ወደእኛ ከተመለሰም ሊሰረዙ ወይም መመለስ አይችሉም።ከተመለሰው ዕቃ ከተቀበልን እና ከተረጋገጠ በኋላ፣ የተመለሰውን ዕቃ እንደተቀበልን ለማሳወቅ ኢሜይል እንልካለን። እንዲሁም የመመለሻዎ መፈቀድ ወይም ማያያዣ ስለሆነ እናሳውቅዎታለን።በመመለሻ ሂደቱ ላይ ችግር ካጋጠመዎት፣ እባክዎን ያግኙን። service@roymall.com ወይም Whatsapp: +447549870296
Description:
Working Voltage : 5V(DC)
Static Current: Less than 2mA.
Output Signal: Electric frequency signal, high level 5V, low level 0V.
Sensor Angle: Not more than 15 degrees.
Detection Distance: 2cm-450cm.
High Precision: Up to 0.3cm
Input Trigger Signal: 10us TTL impulse
Ech0 Signal : output TTL PWL signal
Mode of connection:
VCC
trig(T)
ech0(R)
GND
Use Method:
Supply module with 5V, the output will be 5V while obstacle in range, or 0V if not.The out pin of this module is used as a switching output when anti-theft module, and without the feet when ranging modules.
Note : the module should be inserted in the circuit before been power, which avoid producing high level of misoperation;if not, then power again.
Module Working Principle:
1. Adopt IO trigger through supplying at least 10us of high level signal.
2. The module automatically send eight 40khz square wave and automatically detect whether receive the returning pulse signal.
3. If there is signals returning, through outputting high level and the time of high level continuing is the time of that from the ultrasonic transmitting to receiving. Test distance =(high level time * sound (340M/S) / 2.
Note:
This module is not suitable to connect with electric power, if you need to connect this module with electronic power,then let the GND terminal of this module to be connected first,otherwise, it will affect the normal work of the module
Package Included:
3 x HC-SR04 Ultrasonic Module Distance Measuring Transducer
Working Voltage : 5V(DC)
Static Current: Less than 2mA.
Output Signal: Electric frequency signal, high level 5V, low level 0V.
Sensor Angle: Not more than 15 degrees.
Detection Distance: 2cm-450cm.
High Precision: Up to 0.3cm
Input Trigger Signal: 10us TTL impulse
Ech0 Signal : output TTL PWL signal
Mode of connection:
VCC
trig(T)
ech0(R)
GND
Use Method:
Supply module with 5V, the output will be 5V while obstacle in range, or 0V if not.The out pin of this module is used as a switching output when anti-theft module, and without the feet when ranging modules.
Note : the module should be inserted in the circuit before been power, which avoid producing high level of misoperation;if not, then power again.
Module Working Principle:
1. Adopt IO trigger through supplying at least 10us of high level signal.
2. The module automatically send eight 40khz square wave and automatically detect whether receive the returning pulse signal.
3. If there is signals returning, through outputting high level and the time of high level continuing is the time of that from the ultrasonic transmitting to receiving. Test distance =(high level time * sound (340M/S) / 2.
Note:
This module is not suitable to connect with electric power, if you need to connect this module with electronic power,then let the GND terminal of this module to be connected first,otherwise, it will affect the normal work of the module
Package Included:
3 x HC-SR04 Ultrasonic Module Distance Measuring Transducer
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Customer Reviews
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A part of the review has been auto-translated.
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Kuebi VIP3DE27/07/2016Cost performance ratio is excellent. All 3 sensors arrived in good condition. But be aware: The HC-SR04 has a well-known bug (or is this really a feature???):
The sensor can stuck after measuring our of range. It delivers zero distance values permanently, even if something is quite close. There is a software workaround:
if (distance==0) {
pinMode(echoPin, OUTPUT);
digitalWrite(echoPin, LOW);
pinMode(echoPin, INPUT);
}
// OR this one
if (distance == 0 && digitalRead(ECHO_PIN) == HIGH) {
pinMode(ECHO_PIN, OUTPUT);
digitalWrite(ECHO_PIN, LOW);
delay(100);
pinMode(ECHO_PIN, INPUT);
}
}
For more see here:
https://forum.arduino.cc/index.php?topic=55119.45
https://bitbucket.org/teckel12/arduino-new-ping/issues/3/hc-sr04-sensor-get-stuck-at-zeroComments (0)Show Original -
05/05/2021
Produto de qualidade excelente.
Comments (0)Show Original -
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