HEPTA-Sat Training 2020 / Mbed 2 deprecated Lab7-sample_ultrasonic-sensor

for textbook v4.4

Dependencies:   mbed HCSR04

HC-SR04 program

Diff: HCSR04.lib

Revision:
0:5f87b3c8e32a
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/HCSR04.lib	Wed Nov 06 18:12:17 2019 +0000
@@ -0,0 +1,1 @@
+https://os.mbed.com/users/prabhuvd/code/HCSR04/#71da0dbf4400