Differences

This shows you the differences between two versions of the page.

--- arduino:digital_io:pinmode [2013/02/15 20:45]
+++ arduino:digital_io:pinmode [2024/02/16 01:04] (current)
@@ Line 1: / Line 1: @@
+======pinMode()   ======
+====Description   ====
+Configures the specified pin to behave either as an input or an output.
+As of Arduino 1.0.1, it is possible to enable the internal pullup resistors with the mode INPUT_PULLUP.  Additionally, the INPUT mode explicitly disables the internal pullups.
+====Syntax   ====
+pinMode(pin, mode)
+====Parameters   ====
+pin: the number of the pin whose mode you wish to set
+mode: [[arduino:constants:Constants|INPUT]], [[arduino:constants:Constants|OUTPUT]], or [[arduino:constants:Constants|INPUT_PULLUP]].
+====Returns   ====
+None
+====Example   ====
+<code arduino>
+int ledPin = 13;                 // LED connected to digital pin 13
+void setup()
+{
+  pinMode(ledPin, OUTPUT);      // sets the digital pin as output
+}
+void loop()
+{
+  digitalWrite(ledPin, HIGH);   // sets the LED on
+  delay(1000);                  // waits for a second
+  digitalWrite(ledPin, LOW);    // sets the LED off
+  delay(1000);                  // waits for a second
+}
+</code>
+====Note   ====
+The analog input pins can be used as digital pins, referred to as A0, A1, etc.
+====See also   ====
+* [[arduino:constants:Constants|constants]]
+* [[arduino:digital io:DigitalWrite]]
+* [[arduino:digital io:DigitalRead]]
+Source: arduino.cc

on the occasion of the current invasion of Russia in Ukraine