GE Attenuator / Mbed 2 deprecated VAM_DAX_RELIABILITY

update hcsr04.cpp by changing 20000 to 2000

Dependencies:   Stepper mbed SDFileSystem Ultrasonic PinDetect millis

millis.lib

Committer:
rschimpf78
Date:
2018-12-19
Revision:
5:938a135613d9

File content as of revision 5:938a135613d9:

https://os.mbed.com/users/hudakz/code/millis/#ac7586424119