[doc] Update Analog Input voltage to 3.3v (NFC) (#8085)

hal/src/main/java/edu/wpi/first/hal/AnalogJNI.java

@@ -129,7 +129,7 @@ public class AnalogJNI extends JNIWrapper {
   /**
    * Gets a sample straight from the channel on this module.
    *
-   * <p>The sample is a 12-bit value representing the 0V to 5V range of the A/D converter in the
+   * <p>The sample is a 12-bit value representing the 0V to 3.3V range of the A/D converter in the
    * module. The units are in A/D converter codes. Use GetVoltage() to get the analog value in
    * calibrated units.
    *

hal/src/main/native/include/hal/AnalogInput.h

@@ -144,7 +144,7 @@ int32_t HAL_GetAnalogOversampleBits(HAL_AnalogInputHandle analogPortHandle,
 /**
  * Gets a sample straight from the channel on this module.
  *
- * The sample is a 12-bit value representing the 0V to 5V range of the A/D
+ * The sample is a 12-bit value representing the 0V to 3.3V range of the A/D
  * converter in the module. The units are in A/D converter codes.  Use
  * GetVoltage() to get the analog value in calibrated units.
  *

wpilibc/src/main/native/include/frc/AnalogInput.h

@@ -44,7 +44,7 @@ class AnalogInput : public wpi::Sendable,
   /**
    * Get a sample straight from this channel.
    *
-   * The sample is a 12-bit value representing the 0V to 5V range of the A/D
+   * The sample is a 12-bit value representing the 0V to 3.3V range of the A/D
    * converter in the module.  The units are in A/D converter codes.  Use
    * GetVoltage() to get the analog value in calibrated units.
    *

wpilibc/src/main/native/include/frc/AnalogPotentiometer.h

@@ -38,7 +38,7 @@ class AnalogPotentiometer : public wpi::Sendable,
    *                  potentiometer is plugged into. 0-3 are on-board and 4-7
    *                  are on the MXP port.
    * @param fullRange The value (in desired units) representing the full
-   *                  0-5V range of the input.
+   *                  0-3.3V range of the input.
    * @param offset    The value (in desired units) representing the
    *                  angular output at 0V.
    */
@@ -60,7 +60,7 @@ class AnalogPotentiometer : public wpi::Sendable,
    *
    * @param input     The existing Analog Input pointer
    * @param fullRange The value (in desired units) representing the full
-   *                  0-5V range of the input.
+   *                  0-3.3V range of the input.
    * @param offset    The value (in desired units) representing the
    *                  angular output at 0V.
    */
@@ -82,7 +82,7 @@ class AnalogPotentiometer : public wpi::Sendable,
    *
    * @param input     The existing Analog Input pointer
    * @param fullRange The value (in desired units) representing the full
-   *                  0-5V range of the input.
+   *                  0-3.3V range of the input.
    * @param offset    The value (in desired units) representing the
    *                  angular output at 0V.
    */

wpilibcExamples/src/test/cpp/examples/PotentiometerPID/cpp/PotentiometerPIDTest.cpp

@@ -52,9 +52,9 @@ class PotentiometerPIDTest : public testing::Test {
     m_elevatorSim.Update(20_ms);
 
     /*
-    meters = (v / 5v) * range
-    meters / range = v / 5v
-    5v * (meters / range) = v
+    meters = (v / 3.3v) * range
+    meters / range = v / 3.3v
+    3.3v * (meters / range) = v
      */
     m_analogSim.SetVoltage(
         (frc::RobotController::GetVoltage3V3() *

wpilibj/src/main/java/edu/wpi/first/wpilibj/AnalogInput.java

@@ -14,7 +14,7 @@ import edu.wpi.first.util.sendable.SendableRegistry;
 /**
  * Analog channel class.
  *
- * <p>Each analog channel is read from hardware as a 12-bit number representing 0V to 5V.
+ * <p>Each analog channel is read from hardware as a 12-bit number representing 0V to 3.3V.
  *
  * <p>Connected to each analog channel is an averaging and oversampling engine. This engine
  * accumulates the specified ( by setAverageBits() and setOversampleBits() ) number of samples
@@ -52,9 +52,9 @@ public class AnalogInput implements Sendable, AutoCloseable {
   }
 
   /**
-   * Get a sample straight from this channel. The sample is a 12-bit value representing the 0V to 5V
-   * range of the A/D converter. The units are in A/D converter codes. Use GetVoltage() to get the
-   * analog value in calibrated units.
+   * Get a sample straight from this channel. The sample is a 12-bit value representing the 0V to
+   * 3.3V range of the A/D converter. The units are in A/D converter codes. Use GetVoltage() to get
+   * the analog value in calibrated units.
    *
    * @return A sample straight from this channel.
    */

wpilibj/src/main/java/edu/wpi/first/wpilibj/AnalogPotentiometer.java

@@ -50,7 +50,7 @@ public class AnalogPotentiometer implements Sendable, AutoCloseable {
    * fraction of the supply voltage, plus the offset.
    *
    * @param input The {@link AnalogInput} this potentiometer is plugged into.
-   * @param fullRange The angular value (in desired units) representing the full 0-5V range of the
+   * @param fullRange The angular value (in desired units) representing the full 0-3.3V range of the
    *     input.
    * @param offset The angular value (in desired units) representing the angular output at 0V.
    */

wpilibj/src/test/java/edu/wpi/first/wpilibj/AnalogPotentiometerTest.java

@@ -81,7 +81,7 @@ class AnalogPotentiometerTest {
       RoboRioSim.resetData();
       AnalogInputSim sim = new AnalogInputSim(1);
 
-      // Test at 5v
+      // Test at 3.3v
       sim.setVoltage(3.3);
       assertEquals(270, pot.get());
 

wpilibjExamples/src/test/java/edu/wpi/first/wpilibj/examples/potentiometerpid/PotentiometerPIDTest.java

@@ -68,9 +68,9 @@ class PotentiometerPIDTest {
               m_elevatorSim.update(0.02);
 
               /*
-              meters = (v / 5v) * range
-              meters / range = v / 5v
-              5v * (meters / range) = v
+              meters = (v / 3.3v) * range
+              meters / range = v / 3.3v
+              3.3v * (meters / range) = v
                */
               m_analogSim.setVoltage(
                   RobotController.getVoltage3V3()