GE Attenuator / Mbed 2 deprecated VAM_DAX_RELIABILITY

update hcsr04.cpp by changing 20000 to 2000

Dependencies:   Stepper mbed SDFileSystem Ultrasonic PinDetect millis

Revisions of HCSR04.lib

Revision Date Message Actions
3:fd2ca631ab44 2018-10-13 no change File  Diff  Annotate