example: Fix defined pin for sensor in BeamSensor sketch
Fixed the defined pin for the BeamSensor1 based on the current HW.
diff --git a/examples/BeamSensor/BeamSensor.ino b/examples/BeamSensor/BeamSensor.ino
index c752a9d..7fcd7e5 100644
--- a/examples/BeamSensor/BeamSensor.ino
+++ b/examples/BeamSensor/BeamSensor.ino
@@ -11,7 +11,7 @@
#define BEAM_SENSOR_1_ID 1
#define BEAM_SENSOR_1_NAME "Beam Sensor 1"
-#define BEAM_SENSOR_1_PIN 3
+#define BEAM_SENSOR_1_PIN 2
#define BEAM_SENSOR_2_ID 2
#define BEAM_SENSOR_2_NAME "Beam Sensor 2"