Gedeon Nyengele
/
ece4180_lab4_ACS712
Important changes to repositories hosted on mbed.com
Mbed hosted mercurial repositories are deprecated and are due to be permanently deleted in July 2026.
To keep a copy of this software download the repository Zip archive or clone locally using Mercurial.
It is also possible to export all your personal repositories from the account settings page.
Diff: ACS712.h
- Revision:
- 0:a35011a2fdaa
- Child:
- 1:4f9effb20c29
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/ACS712.h Wed Mar 09 04:19:10 2016 +0000
@@ -0,0 +1,56 @@
+#include <mbed.h>
+
+class ACS712 {
+
+ public:
+ ACS712(PinName _pin, float voltDivRatio = 1, short type = 5);
+
+ float read();
+ float operator=(ACS712&);
+ //void sampleInterval(float);
+ //void sampleFrequency(float);
+ //void bufferLength(int);
+ //float[] readBuffer();
+
+ private:
+ AnalogIn sensor;
+ float translate(float);
+ //float[] circularBuffer;
+ //float interval;
+ float ratio;
+ short type;
+
+};
+
+ACS712::ACS712(PinName _pin, float voltDivRatio, short type) : sensor(_pin){
+ ratio = voltDivRatio;
+ type = type;
+}
+
+float ACS712::translate(float val){
+ switch(type){
+ case 5:
+ return (val*ratio - 2.5*ratio)/(.185*ratio);
+ break;
+ case 20:
+ return (val*ratio - 2.5*ratio)/(.1*ratio);
+ break;
+ case 30:
+ return (val*ratio - 2.5*ratio)/(.066*ratio);
+ break;
+ default:
+ return 999;
+ break;
+
+ }
+}
+
+
+float ACS712::read(){
+ return ACS712::translate(sensor);
+}
+
+float ACS712::operator=(ACS712& rhs){
+ return rhs.read();
+}
+