Anson/Static-Load-Test-Code
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setup for calibration values and some rudimentary filtering

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This commit is contained in:
Brendan McGeeney 2021-11-21 11:31:58 -07:00
parent 91db1a179d
commit 11e2aeede6
1 changed files with 58 additions and 20 deletions
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78
src/main.cpp
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@ -4,6 +4,7 @@
#include <Arduino.h>
LoadCells State;
LoadCells PrevState;
HX711 lc0;
HX711 lc1;
@ -18,6 +19,13 @@ void read_lc0();
void read_lc1();
void read_lc2();
void read_lc3();
double limit(double current, double previous);
// Load Cell Calibration Constants
const double k0 = -518.7;
const double k1 = -633.39;
const double k2 = -202.56;
const double k3 = -295.53;
const int lc_clock = 23;
const int pin_lc0 = 14;
@ -28,11 +36,13 @@ const int pin_lc3 = 20;
const int chipSelect = BUILTIN_SDCARD;
File dataFile;
void setup() {
void setup()
{
delay(1000);
Serial.print("Initializing SD card...");
if (!SD.begin(chipSelect)) {
if (!SD.begin(chipSelect))
{
Serial.println("initialization failed. Things to check:");
@ -93,21 +103,22 @@ void setup() {
String dataString = "lc0,lc1,lc2,lc3";
File dataFile = SD.open("datalog.csv", FILE_WRITE);
if (dataFile) {
if (dataFile)
{
dataFile.println(dataString);
dataFile.close();
}
else {
else
{
Serial.println("error opening datalog.csv");
}
delay(10000);
}
void loop() {
void loop()
{
String dataString = String(State.lc0) + "," + String(State.lc1) + "," +
String(State.lc2) + "," + String(State.lc3);
Serial.println(dataString);
@ -115,23 +126,50 @@ void loop() {
File dataFile = SD.open("datalog.csv", FILE_WRITE);
if (dataFile) {
if (dataFile)
{
dataFile.println(dataString);
dataFile.close();
Serial.println(dataString);
}
else {
else
{
Serial.println("error opening datalog.csv");
}
}
void read_lc0() { State.lc0 = lc0.get_value(); }
void read_lc1() { State.lc1 = lc1.get_value(); }
void read_lc2() { State.lc2 = lc2.get_value(); }
void read_lc3() { State.lc3 = lc3.get_value(); }
void read_lc0()
{
State.lc0 = lc0.get_value();
State.lc0 = limit(State.lc0, PrevState.lc0);
PrevState.lc0 = State.lc0;
}
void read_lc1()
{
State.lc1 = lc1.get_value();
State.lc1 = limit(State.lc1, PrevState.lc1);
PrevState.lc1 = State.lc1;
}
void read_lc2()
{
State.lc2 = lc2.get_value();
State.lc2 = limit(State.lc2, PrevState.lc2);
PrevState.lc2 = State.lc2;
}
void read_lc3()
{
State.lc3 = lc3.get_value();
State.lc3 = limit(State.lc3, PrevState.lc3);
PrevState.lc3 = State.lc3;
}
double limit(double current, double previous)
{
double limit = 1000000;
if (abs(current - previous) > limit)
return previous;
else
return current;
}