Mark internal helpers as static and remove from headers

firmware/atmega/include/moisture.h

@@ -45,7 +45,6 @@ extern volatile bool readSensors;
 
 void sensorsInit(void);
 void triggerMoistureRead(void);
-uint16_t moistureAverage(uint8_t sensorPin);
 uint16_t moistureRead(void);
 
 #endif

firmware/atmega/include/pump.h

@@ -33,7 +33,6 @@ static const int8_t actuatorPins[] = {
 #define ACTUATORS_NUM (sizeof(actuatorPins) / sizeof(actuatorPins[0]))
 
 void pumpsInit(void);
-void triggerPump(uint8_t digital_pins);
 void waterPlant(void);
 
 #endif

firmware/atmega/source/moisture.c

@@ -21,7 +21,7 @@ void triggerMoistureRead(void) {
     readSensors = true;
 }
 
-uint16_t moistureAverage(uint8_t sensorPin) {
+static uint16_t moistureAverage(uint8_t sensorPin) {
     uint16_t sum = 0;
     for (uint8_t i = 0; i < SENSOR_READINGS; i++) {
         sum += adcRead(sensorPin);

firmware/atmega/source/pump.c

@@ -14,7 +14,7 @@ void pumpsInit(void) {
     //PORTD &= ~(1 << actuatorMask);
 }
 
-void triggerPump(uint8_t pump_pin) {
+static void triggerPump(uint8_t pump_pin) {
     // Turn on pump
     PORTD |= (1 << pump_pin);