CPS-Lab* / Mbed 2 deprecated Lab6

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Dependencies:   ADXL362 mbed

Files at this revision

API Documentation at this revision

Revision 3:02e11688fd56, committed 2018-02-22

Comitter:
fanbsun
Date:
Thu Feb 22 23:24:15 2018 +0000
Parent:
2:3299365b3e3c
Commit message:
update

Changed in this revision

vibration_explain.txt Show annotated file Show diff for this revision Revisions of this file 
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vibration_explain.txt	Thu Feb 22 23:24:15 2018 +0000
@@ -0,0 +1,8 @@
+For the vibration detector code fragment, basically, 
+
+1. we use an inner-while loop for continuously getting xyz data from accelerometer, 
+we store two values in 10ms delay inside two different variables x1, x2, and compare their differences. 
+2. If the difference is bigger than a certain threshold( in our test,
+ our x, y difference thresholds are 7 and z is 20), it will break out this inner loop, 
+ and go to outer loop which controls the led to turn on 2s. 
+3. After each time the led turns on, counter will add one and will print how many knocks we have.
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