Description
Ultrasonic Ranging Module
The Ultrasonic Ranging Module provides stable readings and accurately measures distance. This module can be used for a number of projects such as fluid level in a tank, distance to obstacles, and other sensing tasks.
KEY FEATURES
- 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 3mm
- Mode of connection: VCC / trig(T) / echo(R) / GND
NOTES
- Initiate IO trigger by supplying at least 10us high signal
- The module automatically sends eight 40khz square waves and detects the returning pulse signal if available
- Unlike in the photos, a 25 cent coin is not included
LINKS
- Download – http://www.ic5188.com/PDF/HC-SR04.rar
- Interrupt-driven C code for ODROID-C0/C1/C1+ with Python example – https://github.com/OtherCrashOverride/hc-sr04
- ODROID Forum post discussing this module – http://forum.odroid.com/viewtopic.php?f=55&t=18793&sid=18a943e0a9f67e4459dea756cdaf8109#p125
Warranty is valid for two weeks, starting upon date of receipt.
