Kristof T'Jonck / Mbed 2 deprecated CYS_Receiver

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Dependencies:   xtoff2 RF24Network mbed

Fork of xtoff3 by pieter Berteloot

LoadCell.cpp@16:691649d8a3da, 2018-09-05 (annotated)

Committer:
gimohd
Date:
Wed Sep 05 07:50:27 2018 +0000
Revision:
16:691649d8a3da
test

Who changed what in which revision?

UserRevisionLine numberNew contents of line
gimohd 16:691649d8a3da 1 #include "LoadCell.h"
gimohd 16:691649d8a3da 2
gimohd 16:691649d8a3da 3 LoadCell::LoadCell(PinName pin): ain(pin)
gimohd 16:691649d8a3da 4 {
gimohd 16:691649d8a3da 5 SAMPLE_AMOUNT = 2000;
gimohd 16:691649d8a3da 6 CALIBRATION_MASS = 843.56; // 274.19
gimohd 16:691649d8a3da 7 TARE_VALUE = 0.743027;
gimohd 16:691649d8a3da 8 CALIBRATION_VALUE = 0.725960;
gimohd 16:691649d8a3da 9 OFFSET = TARE_VALUE-CALIBRATION_VALUE;
gimohd 16:691649d8a3da 10 DOWN_OFFSET = 0.023591;
gimohd 16:691649d8a3da 11 };
gimohd 16:691649d8a3da 12
gimohd 16:691649d8a3da 13
gimohd 16:691649d8a3da 14 float LoadCell::analogRead()
gimohd 16:691649d8a3da 15 {
gimohd 16:691649d8a3da 16 float samples [SAMPLE_AMOUNT];
gimohd 16:691649d8a3da 17 for(int i = 0; i < SAMPLE_AMOUNT; i++) {
gimohd 16:691649d8a3da 18 float read =ain.read();
gimohd 16:691649d8a3da 19 samples [i] =read;
gimohd 16:691649d8a3da 20 }
gimohd 16:691649d8a3da 21 return Maths::mean(samples,0,SAMPLE_AMOUNT);
gimohd 16:691649d8a3da 22 }
gimohd 16:691649d8a3da 23
gimohd 16:691649d8a3da 24 float LoadCell::simpleAnalogRead()
gimohd 16:691649d8a3da 25 {
gimohd 16:691649d8a3da 26 return ain.read();
gimohd 16:691649d8a3da 27 }
gimohd 16:691649d8a3da 28
gimohd 16:691649d8a3da 29 float LoadCell::calculateMass(float value)
gimohd 16:691649d8a3da 30 {
gimohd 16:691649d8a3da 31 return ((TARE_VALUE - value)*(CALIBRATION_MASS))/(OFFSET);
gimohd 16:691649d8a3da 32 }
gimohd 16:691649d8a3da 33
gimohd 16:691649d8a3da 34
gimohd 16:691649d8a3da 35 float LoadCell::tare()
gimohd 16:691649d8a3da 36 {
gimohd 16:691649d8a3da 37 TARE_VALUE = 0;
gimohd 16:691649d8a3da 38 float values[20];
gimohd 16:691649d8a3da 39 for (int a = 0; a<20; a++) {
gimohd 16:691649d8a3da 40 values[a] = analogRead();
gimohd 16:691649d8a3da 41 }
gimohd 16:691649d8a3da 42
gimohd 16:691649d8a3da 43 TARE_VALUE = Maths::mean(values,0,20);
gimohd 16:691649d8a3da 44 return TARE_VALUE;
gimohd 16:691649d8a3da 45 }
gimohd 16:691649d8a3da 46
gimohd 16:691649d8a3da 47 float LoadCell::tareDown()
gimohd 16:691649d8a3da 48 {
gimohd 16:691649d8a3da 49 TARE_VALUE = 0;
gimohd 16:691649d8a3da 50 float values[20];
gimohd 16:691649d8a3da 51 for (int a = 0; a<20; a++) {
gimohd 16:691649d8a3da 52 values[a] = analogRead();
gimohd 16:691649d8a3da 53 }
gimohd 16:691649d8a3da 54
gimohd 16:691649d8a3da 55 TARE_VALUE = Maths::mean(values,0,20)- DOWN_OFFSET;
gimohd 16:691649d8a3da 56 return TARE_VALUE;
gimohd 16:691649d8a3da 57 }
gimohd 16:691649d8a3da 58
gimohd 16:691649d8a3da 59 float LoadCell::callibrate()
gimohd 16:691649d8a3da 60 {
gimohd 16:691649d8a3da 61 CALIBRATION_VALUE = analogRead();
gimohd 16:691649d8a3da 62 return CALIBRATION_VALUE;
gimohd 16:691649d8a3da 63 }
gimohd 16:691649d8a3da 64
gimohd 16:691649d8a3da 65
gimohd 16:691649d8a3da 66 float LoadCell::mass()
gimohd 16:691649d8a3da 67 {
gimohd 16:691649d8a3da 68 return calculateMass(analogRead());
gimohd 16:691649d8a3da 69 }
gimohd 16:691649d8a3da 70
gimohd 16:691649d8a3da 71 float LoadCell::simpleMass()
gimohd 16:691649d8a3da 72 {
gimohd 16:691649d8a3da 73 return calculateMass(simpleAnalogRead());
gimohd 16:691649d8a3da 74 }
gimohd 16:691649d8a3da 75
gimohd 16:691649d8a3da 76
gimohd 16:691649d8a3da 77 void LoadCell::setCalibrationMass(int mass)
gimohd 16:691649d8a3da 78 {
gimohd 16:691649d8a3da 79 CALIBRATION_MASS = mass;
gimohd 16:691649d8a3da 80 }
gimohd 16:691649d8a3da 81
gimohd 16:691649d8a3da 82 void LoadCell::setSampleAmount(int samples)
gimohd 16:691649d8a3da 83 {
gimohd 16:691649d8a3da 84 SAMPLE_AMOUNT = samples;
gimohd 16:691649d8a3da 85 }
gimohd 16:691649d8a3da 86
gimohd 16:691649d8a3da 87