N K / Mbed 2 deprecated analoghalls6

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.

Dependencies:   mbed

Fork of analoghalls5 by Bayley Wang

Embed: (wiki syntax)

« Back to documentation index

Show/hide line numbers currentsensors.cpp Source File

currentsensors.cpp

00001 #include "includes.h"
00002 #include "sensors.h"
00003 
00004 AnalogCurrentSensor::AnalogCurrentSensor(PinName pin, float volts_per_amp) {
00005     _in = new AnalogIn(pin);
00006     _volts_per_amp = volts_per_amp;
00007     Zero();
00008 }
00009 
00010 void AnalogCurrentSensor::Zero() {
00011     float mean = 0;
00012     for(int i = 1; i<=1000; i++){
00013         mean = 0.1f*((float) *_in) + 0.9f*mean;
00014     }
00015     _zero_level = mean;
00016 }
00017 
00018 float AnalogCurrentSensor::GetCurrent() {
00019     return ((float) *_in - _zero_level) * 3.3f / _volts_per_amp;
00020 }
Generated on Fri Jul 15 2022 12:15:05 by  doxygen 1.7.2