sci-oly-detector-building

commit 7d65af20196c0dfa63d933262ee47a4618ac9f40
parent deeb2b7abdf970b836b1fc1315046fc6b7c638e4
Author: therealFIGBERT <figbertwelner@gmail.com>
Date:   Wed, 19 Feb 2020 23:14:10 -0800

:sparkles: Add functional temperature sensor script

Diffstat:
A
Operational/Operational.ino
 | 
47
+++++++++++++++++++++++++++++++++++++++++++++++
D
RoughDraft/RoughDraft.ino
 | 
24
------------------------

2 files changed, 47 insertions(+), 24 deletions(-)
diff --git a/Operational/Operational.ino b/Operational/Operational.ino
@@ -0,0 +1,47 @@
+#include <hd44780.h>
+#include <Wire.h>
+#include <hd44780ioClass/hd44780_I2Cexp.h>
+hd44780_I2Cexp lcd;
+#define THERMISTORPIN A0
+#define THERMISTORNOMINAL 100000
+#define TEMPERATURENOMINAL 25
+#define NUMSAMPLES 10
+#define BCOEFFICIENT 4000
+#define SERIESRESISTOR 220    
+ 
+int samples[NUMSAMPLES];
+
+void setup() {
+    lcd.begin(16, 2);
+    lcd.backlight();
+    Serial.begin(9600);
+    analogReference(EXTERNAL);
+}
+
+void loop() {
+    uint8_t i;
+    float average;
+    for (i=0; i< NUMSAMPLES; i++) {
+     samples[i] = analogRead(THERMISTORPIN);
+     delay(10);
+    }
+    average = 0;
+    for (i=0; i< NUMSAMPLES; i++) {
+       average += samples[i];
+    }
+    average /= NUMSAMPLES;
+    average = 1023 / average - 1;
+    average = SERIESRESISTOR / average;
+    float celsius = average / THERMISTORNOMINAL;
+    celsius = log(celsius);
+    celsius /= BCOEFFICIENT;
+    celsius += 1.0 / (TEMPERATURENOMINAL + 273.15);
+    celsius = 1.0 / celsius;
+    celsius -= 273.15;
+    lcd.setCursor(5, 0);
+    lcd.print(celsius);
+    float fahrenheit = (celsius * 1.8) + 32;
+    lcd.setCursor(5, 1);
+    lcd.print(fahrenheit);
+    delay(1000);
+}
diff --git a/RoughDraft/RoughDraft.ino b/RoughDraft/RoughDraft.ino
@@ -1,24 +0,0 @@
-#include <Wire.h>
-#include <LiquidCrystal_I2C.h>
-LiquidCrystal_I2C lcd(0x27, 16, 2);
-
-void setup() {
-    lcd.init();
-    lcd.backlight();
-    Serial.begin(9600);
-    int thermistor = A0;
-    float R1 = 10000;
-    float c1 = 1.009249522e-03, c2 = 2.378405444e-04, c3 = 2.019202697e-07;
-}
-
-void loop() {
-    int sensorValue = analogRead(thermistor)
-    float voltage = sensorValue * (3.3 / 1023.0);
-    float celsius = (voltage - 0.5) * 100;
-    float fahrenheit = (celsius * 9.0 / 5.0) + 32.0;
-    lcd.setCursor(5, 0);
-    lcd.print(String(celsius) + "C");
-    lcd.setCursor(5, 1);
-    lcd.print(String(fahrenheit) + "F");
-}
-