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--- digispark:tutorials:basics [2013/03/29 06:43]
PeterMortensen [Digital Read:] Copy edited [4].
+++ digispark:tutorials:basics [2016/06/09 12:03] (current)
@@ Line 26: / Line 26: @@
     digitalWrite(0,HIGH); //Turn the pin HIGH (5 V)
     delay(1000);
-    digitalWrite(0,HIGH); //Turn the pin LOW (GND)
+    digitalWrite(0,LOW); //Turn the pin LOW (GND)
     delay(1000);
 }
@@ Line 54: / Line 54: @@
 void setup() {
-//You need not set pin mode for analogRead -
+    //You need not set pin mode for analogRead - though if you have set the pin to
-//though if you have set the pin to output and later want to read from it then you need to set //pinMode(0,INPUT);  where 0 is the physical pin number not the analog input number.
+    //output and later want to read from it then you need to set pinMode(0,INPUT);
-//see below for the proper pinMode statement to go with each analog read
+    //where 0 is the physical pin number not the analog input number.
+    //
+    //See below for the proper pinMode statement to go with each analog read.
 }
 void loop() {
-  // The analog pins are referenced by their analog port number, not their pin number and are as follows:
+    // The analog pins are referenced by their analog port number, not their pin
+    //number and are as follows:
-	sensorValue = analogRead(1); //read P2
+    sensorValue = analogRead(1); //Read P2
-	//to set to input: pinMode(2,INPUT);
+    //To set to input: pinMode(2, INPUT);
-	//THIS IS P2, P2 is Analog Input 1, so when you are using analog read you refer to it as 1
+    //THIS IS P2, P2 is analog input 1, so when you are using analog read, you refer to it as 1.
-	//sensorValue = analogRead(2); //read P4
+    //sensorValue = analogRead(2); //Read P4
-	//to set to input: pinMode(4,INPUT);
+    //To set to input: pinMode(4, INPUT);
-	//THIS IS P4, P2 is Analog Input 2, so when you are using analog read you refer to it as 2
+    //THIS IS P4, P4 is analog input 2, so when you are using analog read, you refer to it as 2.
-	//sensorValue = analogRead(3); //read P3
+    //sensorValue = analogRead(3); //Read P3
-	//to set to input: pinMode(3,INPUT);
+    //To set to input: pinMode(3, INPUT);
-	//THIS IS P3, P3 is Analog Input 3, so when you are using analog read you refer to it as 3
+    //THIS IS P3, P3 is analog input 3, so when you are using analog read, you refer to it as 3.
-	//sensorValue = analogRead(0); //read P5
+    //sensorValue = analogRead(0); //Read P5
-	//to set to input: pinMode(5,INPUT);
+    //To set to input: pinMode(5, INPUT);
-	//THIS IS P5, P5 is Analog Input 0, so when you are using analog read you refer to it as 0
+    //THIS IS P5, P5 is analog input 0, so when you are using analog read, you refer to it as 0.
 }
 </code>
-===== Analog Write: (aka PWM)=====
+===== Analog Write: (AKA PWM)=====
 <code>
 void setup() {
-  //P0, P1, and P4 are capable of hardware PWM (analogWrite)
+    //P0, P1, and P4 are capable of hardware PWM (analogWrite).
-  pinMode(0, OUTPUT); //0 is P0, 1 is P1, 4 is P4 - unlike the analog inputs, for analog (PWM) outputs the pin number matches
+    pinMode(0, OUTPUT); //0 is P0, 1 is P1, 4 is P4 - unlike the analog inputs,
+                        //for analog (PWM) outputs the pin number matches the port number.
 }
 void loop() {
-	analogWrite(0,255); //turn the pin on full (100%)
+    analogWrite(0,255); //Turn the pin on full (100%)
-	delay(1000);
+    delay(1000);
-	analogWrite(0,128); //turn the pin on half (50%)
+    analogWrite(0,128); //Turn the pin on half (50%)
-	delay(1000);
+    delay(1000);
-	analogWrite(0,0); //turn the pin off (0%)
+    analogWrite(0,0);   //Turn the pin off (0%)
-	delay(1000);
+    delay(1000);
 }
 </code>

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