Bram Documentation themperature sensors.

docs/LearningProcessBram/Sprint1/FirstDocumentation.md

@@ -57,7 +57,7 @@ examples, basics, fade
 \/ servo's 
 examples, servo, sweep
 
-### Linux and raspberrypi.
+### Linux and raspberryPI.
 To gain more knowledge about linux, i first asked my class mates if they could get me started. 
 They showed me how to gain acces to a server, and told me how to navigate through files.
 By doing this i got taught the following commands:
@@ -71,4 +71,65 @@ By doing this i got taught the following commands:
 ~ $ 'ssh username@ip address' = open ssh connection.
 
 From here i went and looked up several linux video's wich taught me the following: 
+....
 
+### Air, temperature, and all sort of stuff.
+After the  linux coding i decided to take a step back and began gaining experience with sensors.
+I began trying to make our group project's "node" for myself.
+I did this by using one of the main sensors and tried programing it in myself.
+I used this website for the information and for the right library:(https://randomnerdtutorials.com/esp32-dht11-dht22-temperature-humidity-sensor-arduino-ide/).
+Aside from the website i used my teammates for help where it was needed.
+I wanted to make my own spin on the original design by including a button to activate the sensor and an LED to show if its on.
+At first I tried to use my own DHT11, but apparently it didn't work. So i used one from my Teammates.
+The rest of the tutorial was clear and worked like a charm. 
+the code used looks like this: 
+```
+#include "DHT.h"
+
+#define DHTPIN 4
+#define DHTTYPE DHT11 
+
+DHT dht(DHTPIN, DHTTYPE);
+
+void setup() {
+  // put your setup code here, to run once:
+Serial.begin(9600);
+Serial.println(F("DHTxx test!"));
+dht.begin();
+}
+
+void loop() {
+ delay(2000);
+ float h = dht.readHumidity();
+// Read temperature as Celsius (the default)
+float t = dht.readTemperature();
+float f = dht.readTemperature(true);
+
+  if (isnan(h) || isnan(t) || isnan(f)) {
+    Serial.println(F("Failed to read from DHT sensor!"));
+    return;
+  }
+
+// Compute heat index in Fahrenheit (the default)
+float hif = dht.computeHeatIndex(f, h);
+// Compute heat index in Celsius (isFahreheit = false)
+float hic = dht.computeHeatIndex(t, h, false);
+
+Serial.print(F("Humidity: "));
+Serial.print(h);
+Serial.print(F("%  Temperature: "));
+Serial.print(t);
+Serial.print(F("°C "));
+Serial.print(f);
+Serial.print(F("°F  Heat index: "));
+Serial.print(hic);
+Serial.print(F("°C "));
+Serial.print(hif);
+Serial.println(F("°F"));
+}
+```
+And The fysical board looks like this: 
+
+And here it looks in action: 
+
+Later on i could expand this code and the fysical product to include the rest of the sensors.