use pro mini as sensor with attiny85 as controller

oil_sensor/include/SonarSensor.h

@@ -10,20 +10,7 @@ private:
 public:
 	SonarSensor(short id) : GenericSensor(id) {}
 
-	void setup() {
-		pinMode(VCC_PIN, OUTPUT);
-		turnOff();
-	}
-
 	unsigned int scan() {
 		return sonar.convert_cm(sonar.ping_median());
 	}
-
-	void turnOn() {
-		digitalWrite(VCC_PIN, HIGH);
-	}
-
-	void turnOff() {
-		digitalWrite(VCC_PIN, LOW);
-	}
 };

oil_sensor/platformio.ini

@@ -12,9 +12,7 @@
 platform = atmelavr
 board = attiny85
 framework = arduino
-lib_deps = 
-	teckel12/NewPing@^1.9.4
-	sui77/rc-switch @ ^2.6.4
+build_src_filter = +<switch.cpp>
 lib_extra_dirs = 
 	../libraries
 upload_protocol = stk500v1
@@ -23,3 +21,14 @@ upload_flags =
 	-b$UPLOAD_SPEED
 upload_port = /dev/ttyACM0
 upload_speed = 19200
+
+[env:pro_mini]
+platform = atmelavr
+board = pro16MHzatmega168
+framework = arduino
+build_src_filter = +<oil_sensor.cpp>
+lib_deps = 
+	teckel12/NewPing@^1.9.4
+	sui77/rc-switch @ ^2.6.4
+lib_extra_dirs = 
+	../libraries

oil_sensor/src/oil_sensor.cpp

@@ -1,55 +1,37 @@
 #include <Arduino.h>
-#include <TinyPower.h>
 
-#define SENDER_PIN    PIN_B2
-#define TRIGGER_PIN   PIN_B3
-#define ECHO_PIN      PIN_B4
-#define VCC_PIN       PIN_B1
+#define SENDER_GND    10
+#define SENDER_DATA   11
+#define SENDER_VCC    12
+#define TRIGGER_PIN   2
+#define ECHO_PIN      3
+#define NOTIFY_PIN    9
 
 #define MAX_DISTANCE  200		// 2 meters
 
 #include "SonarSensor.h"
 
-#define SEND_INTERVAL 450							// 450*8s = ~1 hour
-#define SEND_VCC_INTERVAL (SEND_INTERVAL*12)		// ~12 hours
-
-
 SonarSensor oilSensor(OIL_SENSOR);
 
-volatile int counter = 0;
-volatile bool shouldSend = true;
-
 void setup() {
-	oilSensor.setup();
-	TinySwitch::setup(SENDER_PIN);
-	TinyPower::setup();
-	TinyPower::enableWdt(WDTO_8S);
+	Serial.begin(9600);
+	Serial.println("starting...");
+
+	pinMode(SENDER_GND, OUTPUT);
+	digitalWrite(SENDER_GND, LOW);
+	pinMode(SENDER_VCC, OUTPUT);
+	digitalWrite(SENDER_VCC, HIGH);
+	TinySwitch::setup(SENDER_DATA);
+
+	delay(300);
+	unsigned int distance = oilSensor.scan();
+	Serial.println(distance);
+	if (distance) oilSensor.sendValueAndVoltage(distance);
+	delay(200);
+	pinMode(NOTIFY_PIN, OUTPUT);
+	digitalWrite(NOTIFY_PIN, LOW);
+	Serial.println("finished");
 }
 
 void loop() {
-	if (shouldSend) {
-		shouldSend = false;
-		oilSensor.turnOn();
-		delay(500);
-		unsigned int distance = oilSensor.scan();
-		oilSensor.turnOff();
-		if (distance) {
-			if (counter) {
-				oilSensor.sendValue(distance);
-			} else {
-				oilSensor.sendValueAndVoltage(distance);
-			}
-		}
-	}
-	TinyPower::sleep();
-}
-
-ISR(WDT_vect) {
-	counter++;
-	if ((counter % SEND_INTERVAL == 0)) {
-		shouldSend = true;
-		if ((counter % SEND_VCC_INTERVAL == 0)) {
-			counter = 0;
-		}
-	}
 }

oil_sensor/src/switch.cpp

@@ -0,0 +1,41 @@
+#include <Arduino.h>
+#include <TinyPower.h>
+
+#define CONTROLLER_PIN   	PIN_B4
+#define NOTIFICATION_PIN    PIN_B0
+
+#define HOUR_INTERVAL 450							// 450*8s = ~1 hour
+#define WAKE_INTERVAL (HOUR_INTERVAL*12)			// ~12 hours
+
+
+volatile int counter = 0;
+volatile bool wakeUp = true;
+
+void setup() {
+	pinMode(PIN_B3, INPUT);
+	pinMode(CONTROLLER_PIN, OUTPUT);
+	digitalWrite(CONTROLLER_PIN, LOW);
+	pinMode(NOTIFICATION_PIN, INPUT_PULLUP);
+	TinyPower::setup();
+	TinyPower::enableWdt(WDTO_8S);
+}
+
+void loop() {
+	if (wakeUp) {
+		wakeUp = false;
+		digitalWrite(CONTROLLER_PIN, HIGH);
+	}
+	TinyPower::sleep(NOTIFICATION_PIN);
+}
+
+ISR(WDT_vect) {
+	counter++;
+	if ((counter % WAKE_INTERVAL == 0)) {
+		wakeUp = true;
+	}
+}
+
+ISR(PCINT0_vect) {
+	if (!digitalRead(NOTIFICATION_PIN))
+		digitalWrite(CONTROLLER_PIN, LOW);
+}