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- HY-SRF05 ultrasonic distance measuring module can provide 2cm-450cm non-contact distance sensing function, the range accuracy is up to 3mm
- The module includes ultrasonic transmitter, receiver and control circuit
- The basic operation principle is below:
- ----Adopt IO port TRIG to trigger ranging, it needs 10us high level signal at least
- ----Module can send 8 of 40KHz square wave automatically, and will test if there is any signal returned
- ----If there is signal returned, output one high level signal via IO port ECHO. The duration of the high level signal is the time from transmitter to receiving with the ultrasonic.
- ----Testing Distance = Duration of High Level Time x Sound Velocity(340m/s) / 2
- Pin Function:
- ----Vcc: Power Terminal
- ----Trig: Control Terminal
- ----Echo: Receiver Terminal
- ----OUT: Switch Output Terminal
- ----GND: Common Ground
- Operating Voltage: DC 5V
- Operating Current: 15mA
- Operating Frequency: 40Hz
- Utmost Range: 4.5m
- Nearest Range: 2cm
- Measure Angle: 15゜
- Input Trigger Signal: 10us TTL Pulse
- Output Echo Signal: Output TTL Level Signal (Proportional to the range)
- Forum link: https://www.facebook.com/123Neonado
- Net Weight: 8g/ 0.28oz
- Size: 45 x 20 x 15mm/ 1.77 x 0.79 x 0.59in
- Color: Blue
- 1 x HY-SRF05 Ultrasonic Module
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4) For the order with only one item (only one item):
b. if your item is more than 20USD, our system will ship your item with tracking number automatically free of charge.
5) For the order with multiple items (multiple items):
b. if most items in one order is low value with reasonable weight and size, our Checkout process is able to identify such order giving free registered freight on it.
c. if most items in one order are low value but with relatively high weight (i.e. Value: Weight ratio is not in reasonable range), we will charge certain discounted upgrading fee if you need tracking number.
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B. Please check with your country's customs office to determine what these additional costs will be prior to buying.
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