This Grove – Ultrasonic ranger is a non-contact distance measurement module which works at 40KHz. When we provide a pulse trigger signal with more than 10uS through signal pin, the Grove_Ultrasonic_Ranger will issue 8 cycles of 40kHz cycle level and detect the echo. The pulse width of the echo signal is proportional to the measured distance. Here is the formula: Distance = echo signal high time * Sound speed (340M/S)/2. Grove_Ultrasonic_Ranger’s trig and echo signal share 1 SIG pin.
|Product Version||Changes||Released Date|
|Grove-Ultrasonic ranger V1.0||Initial||Mar 2012|
|Grove-Ultrasonic ranger V2.0||Improve the power stability with low-voltage main board with below changes: 1. Added an capacitance C14 2. Redesigned the layout to make it more tidy 3. Compatible with 3.3V voltage system||July 2017|
|Size||50mm X 25mm X 16mm|
|Measurement angle||15 degree|
|Working temperature||-10~60 degree C|
|Trigger signal||10uS TTL|