Restore the home method. Now it compiles.

app/data/cfg.json

@@ -1,5 +1,5 @@
 {
-  "version": "1.8.40",
+  "version": "1.8.41",
   "ext_port": 1111,
   "profiles": {
     "mcopy": {

app/package-lock.json

@@ -1,6 +1,6 @@
 {
   "name": "mcopy-app",
-  "version": "1.8.40",
+  "version": "1.8.41",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {

app/package.json

@@ -1,6 +1,6 @@
 {
   "name": "mcopy-app",
-  "version": "1.8.40",
+  "version": "1.8.41",
   "description": "GUI for the mcopy small gauge film optical printer platform",
   "main": "main.js",
   "scripts": {

data/cfg.json

@@ -1,5 +1,5 @@
 {
-  "version": "1.8.40",
+  "version": "1.8.41",
   "ext_port": 1111,
   "profiles": {
     "mcopy": {

ino/mcopy_projector_firmware/McopyProjector.cpp

@@ -157,56 +157,110 @@ void McopyProjector::setStepperMode (uint8_t mode) {
 }
 
 void McopyProjector::home () {
-	/*
 	uint16_t steps = _motorSteps * _mode;
-	long reading;
+	uint16_t quarter = steps / 4;
-	//
+	uint16_t eighth = quarter / 2;
+	uint16_t takeupPeak = 0;
+	uint16_t feedPeak = 0;
+	uint16_t takeupOffset = 0;
+	uint16_t feedOffset = 0;
+	long takeupReading = 0.0;
+	long feedReading = 0.0;
+
+	emitters(true);
+	delay(10);
+
 	for (uint16_t i = 0; i < steps; i++) {
-		reading = analogReadAccurateAverage(_takeupReceiver);
+		takeupReading = analogReadAccurateAverage(_takeupReceiver);
-		_takeupSamples[i] = reading;
+		feedReading = analogReadAccurateAverage(_feedReceiver);
+		_takeupSamples[i] = takeupReading;
+		_feedSamples[i] = feedReading;
 		if (i < steps - 1) {
 			_takeup.move(1);
+			_feed.move(1);
 			_takeup.runToPosition();
+			_feed.runToPosition();
 		}
 	}
-	//
+
 	for (uint16_t i = 0; i < steps; i++) {
 		Serial.print(i);
 		Serial.print(", ");
-		Serial.println(_takeupSamples[i]);
+		Serial.print(_takeupSamples[i]);
+		Serial.print(", ");
+		Serial.println(_feedSamples[i]);
 	}
-	uint16_t peak = findPeak(_takeupSamples, steps);
+
-	Serial.print("peak: ");
+	takeupPeak = findPeak(_takeupSamples, steps);
-	Serial.println(peak);
+	feedPeak = findPeak(_feedSamples, steps);
-	uint16_t offset = abs(200 - peak);
+	Serial.print("  takeup peak: ");
-	Serial.print("offset: ");
+	Serial.println(takeupPeak);
-	Serial.println(offset);
+	Serial.print("    feed peak: ");
-	if (offset != 0) {
+	Serial.println(feedPeak);
-		for (uint16_t i = 0; i < offset; i++) {
+
-			_takeup.move(-1);
+	takeupOffset = abs(steps - takeupPeak);
-			_takeup.runToPosition();
+	feedOffset = abs(steps - takeupPeak);
-		}
+
-		for (uint16_t i = 0; i < 25; i++) {
+	Serial.print("takeup offset: ");
+	Serial.println(takeupOffset);
+	Serial.print("  feed offset: ");
+	Serial.println(feedOffset);
+
+	if (takeupOffset > 0) {
+		for (uint16_t i = 0; i < takeupOffset; i++) {
 			_takeup.move(-1);
 			_takeup.runToPosition();
 		}
 	}
-	for (uint16_t i = 0; i < 50; i++) {
+	if (feedOffset > 0) {
-		reading = analogReadAccurateAverage(_takeupReceiver);
+		for (uint16_t i = 0; i < feedOffset; i++) {
-		_takeupSamples[i] = reading;
+			_feed.move(-1);
+			_feed.runToPosition();
+		}
+	}
+
+	for (uint16_t i = 0; i < eighth; i++) {
+		_takeup.move(-1);
+		_feed.move(-1);
+		_takeup.runToPosition();
+		_feed.runToPosition();
+	}
+
+	for (uint16_t i = 0; i < quarter; i++) {
+		takeupReading = analogReadAccurateAverage(_takeupReceiver);
+		feedReading = analogReadAccurateAverage(_feedReceiver);
+		_takeupSamples[i] = takeupReading;
+		_feedSamples[i] = feedReading;
 		if (i < steps - 1) {
 			_takeup.move(1);
+			_feed.move(1);
 			_takeup.runToPosition();
+			_feed.runToPosition();
 		}
 	}
-	uint16_t peak2 = findPeak(_takeupSamples, 50);
+
-	uint16_t offset2 = abs(50 - peak2);
+	emitters(false);
-	if (offset2 != 0) {
+	
-		for (uint16_t i = 0; i < offset2; i++) {
+	takeupPeak = findPeak(_takeupSamples, quarter);
+	feedPeak = findPeak(_feedSamples, quarter);
+	takeupOffset = abs(quarter - takeupPeak);
+	feedOffset = abs(quarter - feedPeak);
+	
+	if (takeupOffset > 0) {
+		for (uint16_t i = 0; i < takeupOffset; i++) {
 			_takeup.move(-1);
 			_takeup.runToPosition();
 		}
-	}*/
+	}
+	if (feedOffset > 0) {
+		for (uint16_t i = 0; i < feedOffset; i++) {
+			_feed.move(-1);
+			_feed.runToPosition();
+		}
+	}
+
+	_posTakeup = 0;
+	_posFeed = 0;
 }
 
 long McopyProjector::readVcc() {
@@ -249,3 +303,8 @@ uint16_t McopyProjector::findPeak(long (&arr)[200], uint16_t &steps) {
 	}
 	return maxI;
 }
+
+void McopyProjector::emitters (bool enabled) {
+	digitalWrite(_takeupEmitter, enabled ? HIGH : LOW);
+	digitalWrite(_feedEmitter, enabled ? HIGH : LOW);
+}

ino/mcopy_projector_firmware/McopyProjector.h

@@ -62,6 +62,7 @@ class McopyProjector {
 	long analogReadAccurate (uint8_t &pin);
 	long analogReadAccurateAverage (uint8_t &pin);
 	uint16_t findPeak(long (&arr)[200], uint16_t &steps);
+	void emitters(bool enabled);
 
 	public:
 

package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "mcopy",
-  "version": "1.8.40",
+  "version": "1.8.41",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "mcopy",
-      "version": "1.8.40",
+      "version": "1.8.41",
       "license": "MIT",
       "dependencies": {
         "arduino": "file:app/lib/arduino",

package.json

@@ -1,6 +1,6 @@
 {
   "name": "mcopy",
-  "version": "1.8.40",
+  "version": "1.8.41",
   "description": "Small gauge film optical printer platform",
   "main": "build.js",
   "directories": {

processing/mcopy/cfg.json

@@ -1,5 +1,5 @@
 {
-  "version": "1.8.40",
+  "version": "1.8.41",
   "ext_port": 1111,
   "profiles": {
     "mcopy": {