wireless sensor
/
PHtest
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Fork of
LinearAnalogSensors
by 
Penn Electric
Revision 3:c749fbcf2acb, committed 2016-08-11
- Comitter:
- Dengjj
- Date:
- Thu Aug 11 14:14:49 2016 +0000
- Parent:
- 2:989048937c77
- Commit message:
- working for PH test
Changed in this revision
| LinearTemp.cpp | Show annotated file Show diff for this revision Revisions of this file |
--- a/LinearTemp.cpp Sun Dec 23 07:32:24 2012 +0000
+++ b/LinearTemp.cpp Thu Aug 11 14:14:49 2016 +0000
@@ -27,6 +27,7 @@
_multiplier = (temp2 - temp1) / (read2 - read1); // Calculate multiplier as slope
_offset = temp1 - (_multiplier * read1); // Calculate offset
}
+
// Constructor using user defined multiplier and offset
LinearTemp::LinearTemp(PinName pin, float multiplier, float offset):_pin(pin) {
_temp = 0.0; // Zero the temperature
@@ -36,6 +37,7 @@
// Populates an array with temperature readings, sorts, and returns median
float LinearTemp::readTemp() {
+ /*
_tempArr[0] = _pin.read_u16();
for (int i = 1; i < 9; i++) {
_tempArr[i] = _pin.read_u16();
@@ -47,7 +49,10 @@
}
_tempArr[j + 1] = tmp;
}
- _temp = (_tempArr[4] * _multiplier) + _offset;
+ //_temp = (_tempArr[4] * _multiplier) + _offset;
+ */
+ _temp = (float)_pin.read_u16();
+ _temp = _temp*3/(16*4096);
return _temp;
}
// Returns last calculated temperature value