N K / Mbed 2 deprecated analoghalls5_5

working-est copy with class-based code. still open loop

Dependencies:   mbed

Fork of analoghalls6 by N K

voltagesensors.cpp@10:b4abecccec7a, 2015-03-08 (annotated)

Committer:
nki
Date:
Sun Mar 08 00:45:28 2015 +0000
Revision:
10:b4abecccec7a
Parent:
1:1f58bdcf2956 
uguu;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bwang 0:54cf32d35f4d 1 #include "includes.h"
bwang 1:1f58bdcf2956 2 #include "sensors.h"
bwang 0:54cf32d35f4d 3
bwang 0:54cf32d35f4d 4 AnalogVoltageSensor::AnalogVoltageSensor(PinName pin, float scale) {
bwang 0:54cf32d35f4d 5 _in = new AnalogIn(pin);
bwang 0:54cf32d35f4d 6 _scale = scale;
bwang 0:54cf32d35f4d 7 }
bwang 0:54cf32d35f4d 8
bwang 0:54cf32d35f4d 9 void AnalogVoltageSensor::Zero() {
bwang 0:54cf32d35f4d 10 _zero_level = (float) *_in;
bwang 0:54cf32d35f4d 11 }
bwang 0:54cf32d35f4d 12
bwang 0:54cf32d35f4d 13 float AnalogVoltageSensor::GetVoltage() {
bwang 0:54cf32d35f4d 14 return ((float) *_in - _zero_level) * 3.3f / _scale;
bwang 0:54cf32d35f4d 15 }