Create hall_effect_esp32.ino (espressif#450)

* Create hall_effect_esp32.ino A simple example to access the hall effect sensor in the esp32 * Create hall_effect.ino * Update hall_effect.ino Simple sketch to access the internal hall effect detector on the esp32 * Delete hall_effect_esp32.ino * Create HallSensor.ino * Update HallSensor.ino * Update HallSensor.ino * Delete hall_effect.ino

Author: sctv

libraries/ESP32/examples/HallSensor/HallSensor.ino

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+//Simple sketch to access the internal hall effect detector on the esp32.
+//values can be quite low. 
+//Brian Degger / @sctv 
+
+int val = 0;
+voidsetup(){
+ Serial.begin(9600);
+ }
+
+voidloop(){
+// put your main code here, to run repeatedly:
+ val = hallRead();
+// print the results to the serial monitor:
+//Serial.print("sensor = ");
+ Serial.println(val);//to graph 
+}