Added monitor target and AnalogInOutSerial example

arduino-mk/Arduino.mk

@@ -64,11 +64,15 @@
 #                            provided patches in the same spirit.
 #
 #          0.9 26.iv.2012  M J Oldfield
-#                          - Allow the punter to specify boards.txt file
+#                          - Allow the punter to specify boards.txt
-#                            and parser independently (after Peplin on github)
+#                            file and parser independently (after
+#                            Peplin and Brotchie on github)
 #			   - Support user libraries (Peplin's patch)
 #                          - Remove main.cpp if NO_CORE_MAIN_CPP is
 #                            defined (ex Peplin)
+#                          - Added a monitor target which talks to the
+#                            Arduino serial port (Peplin's suggestion)
+#                          
 #
 ########################################################################
 #
@@ -131,6 +135,25 @@
 #   make reset       - reset the Arduino by tickling DTR on the serial port
 #   make raw_upload  - upload without first resetting
 #   make show_boards - list all the boards defined in boards.txt
+#   make monitor     - connect to the Arduino's serial port
+#
+########################################################################
+#
+# SERIAL MONITOR
+#
+# The serial monitor just invokes the GNU screen program with suitable
+# options. For more information see screen (1) and search for 
+# 'character special device'.
+#
+# The really useful thing to know is that ^A-k gets you out!
+#
+# The fairly useful thing to know is that you can bind another key to
+# escape too, by creating $HOME{.screenrc} containing e.g.
+#
+#    bindkey ^C kill
+#
+# If you want to change the baudrate, just set MONITOR_BAUDRATE. If you
+# don't set it, it defaults to 9600 baud.
 #
 ########################################################################
 #
@@ -218,6 +241,21 @@ endif
 
 endif
 
+########################################################################
+# Serial monitor (just a screen wrapper)
+#
+# Quite how to construct the monitor command seems intimately tied
+# to the command we're using (here screen). So, read the screen docs
+# for more information (search for 'character special device').
+#
+ifndef MONITOR_BAUDRATE
+MONITOR_BAUDRATE = 9600
+endif
+
+ifndef MONITOR_CMD
+MONITOR_CMD = screen
+endif
+
 ########################################################################
 # boards.txt parsing
 #
@@ -550,6 +588,9 @@ size:		$(OBJDIR) $(TARGET_HEX)
 show_boards:	
 		$(PARSE_BOARD_CMD) --boards
 
-.PHONY:	all clean depends upload raw_upload reset size show_boards
+monitor:
+		$(MONITOR_CMD) $(ARD_PORT) $(MONITOR_BAUDRATE)
+
+.PHONY:	all clean depends upload raw_upload reset size show_boards monitor
 
 include $(DEP_FILE)

examples/AnalogInOutSerial/AnalogInOutSerial.ino

@@ -0,0 +1,53 @@
+/*
+  Analog input, analog output, serial output
+ 
+ Reads an analog input pin, maps the result to a range from 0 to 255
+ and uses the result to set the pulsewidth modulation (PWM) of an output pin.
+ Also prints the results to the serial monitor.
+ 
+ The circuit:
+ * potentiometer connected to analog pin 0.
+   Center pin of the potentiometer goes to the analog pin.
+   side pins of the potentiometer go to +5V and ground
+ * LED connected from digital pin 9 to ground
+ 
+ created 29 Dec. 2008
+ modified 30 Aug 2011
+ by Tom Igoe
+ 
+ This example code is in the public domain.
+ 
+ */
+
+// These constants won't change.  They're used to give names
+// to the pins used:
+const int analogInPin = A0;  // Analog input pin that the potentiometer is attached to
+const int analogOutPin = 9; // Analog output pin that the LED is attached to
+
+int sensorValue = 0;        // value read from the pot
+int outputValue = 0;        // value output to the PWM (analog out)
+
+void setup() {
+  // initialize serial communications at 9600 bps:
+  Serial.begin(9600); 
+}
+
+void loop() {
+  // read the analog in value:
+  sensorValue = analogRead(analogInPin);            
+  // map it to the range of the analog out:
+  outputValue = map(sensorValue, 0, 1023, 0, 255);  
+  // change the analog out value:
+  analogWrite(analogOutPin, outputValue);           
+
+  // print the results to the serial monitor:
+  Serial.print("sensor = " );                       
+  Serial.print(sensorValue);      
+  Serial.print("\t output = ");      
+  Serial.println(outputValue);   
+
+  // wait 10 milliseconds before the next loop
+  // for the analog-to-digital converter to settle
+  // after the last reading:
+  delay(10);                     
+}

examples/AnalogInOutSerial/Makefile

@@ -0,0 +1,9 @@
+ARDUINO_DIR = /Applications/Arduino.app/Contents/Resources/Java
+PARSE_BOARD = ../../arduino-mk/ard-parse-boards
+
+BOARD_TAG    = uno
+ARDUINO_PORT = /dev/cu.usb*
+
+ARDUINO_LIBS = 
+
+include ../../arduino-mk/Arduino.mk