Update schematic for final build setup, adjust code for finalized build

hardware/arduino/calibration_jig/README.md

@@ -10,7 +10,8 @@ An Arduino based build that allows testing and reading various sensors (used els
 | 1        | SparkFun QWIIC Proto Shield             |
 | 1        | Arduino Proto Shield                    |
 | 3        | Push button                             |
-| 1        | MAX6816EUS+T (Button Debounce)         |
+| 1        | MAX6816EUS+T (Button Debounce)          |
 | 1        | MAX6817EUT+T (Button Debounce)          |
 | 1        | Adafruit 2.2" TFT LCD                   |
 | 2        | 4.7k Resistor                           |
+| 1        | SparkFun RGB LED Breakout - WS2812B     |

hardware/arduino/calibration_jig/calibration_jig.ino

@@ -19,7 +19,7 @@ I2CSoilMoistureSensor sensor_soil_catnip;
 // Various tunables
 #define ERROR_LED_PIN 13
 #define ERROR_LED_LIGHTUP_STATE HIGH
-#define PIXEL_PIN            40 // pin of pixel
+#define PIXEL_PIN            2 // pin of pixel -- 40 for metro on board pixel
 #define PIXEL_MAX_BRIGHTNESS 48 // 255 max
 #define PIXEL_MIN_BRIGHTNESS 4 // 0 min
 #define BREATHE_DELAY        5 // milliseconds
@@ -106,12 +106,12 @@ void setup() {
   tft.setCursor(tft.width() / 2 - 138, tft.height() / 2 + 10);
   tft.println("Press Up/Down");
 
-  pinMode(BUTTON_UP, INPUT_PULLUP);
-  pinMode(BUTTON_DOWN, INPUT_PULLUP);
-  pinMode(BUTTON_OK, INPUT_PULLUP);
-  attachInterrupt(digitalPinToInterrupt(BUTTON_UP), InterruptHandlerButtonUp, RISING);
-  attachInterrupt(digitalPinToInterrupt(BUTTON_DOWN), InterruptHandlerButtonDown, RISING);
-  attachInterrupt(digitalPinToInterrupt(BUTTON_OK), InterruptHandlerButtonOk, RISING);
+  pinMode(BUTTON_UP, INPUT);
+  pinMode(BUTTON_DOWN, INPUT);
+  pinMode(BUTTON_OK, INPUT);
+  attachInterrupt(digitalPinToInterrupt(BUTTON_UP), InterruptHandlerButtonUp, FALLING);
+  attachInterrupt(digitalPinToInterrupt(BUTTON_DOWN), InterruptHandlerButtonDown, FALLING);
+  attachInterrupt(digitalPinToInterrupt(BUTTON_OK), InterruptHandlerButtonOk, FALLING);
 
   sem_btn_up = xSemaphoreCreateBinary();
   sem_btn_down = xSemaphoreCreateBinary();