update hcsr04.cpp by changing 20000 to 2000
Dependencies: Stepper mbed SDFileSystem Ultrasonic PinDetect millis
Diff: mbed.bld
- Revision:
- 8:3f4d78017fd9
- Parent:
- 0:88834eed3de0
update hcsr04.cpp by changing 20000 to 2000
Dependencies: Stepper mbed SDFileSystem Ultrasonic PinDetect millis