Activities/Turtle Art/Programmable Brick - Revision history

FGrose: moved Activities/TurtleArt/Programmable Brick to Activities/Turtle Art/Programmable Brick: deCamelCase

2012-07-23T15:37:21Z

← Older revision	Revision as of 11:37, 23 July 2012
(No difference)

2012-01-27T21:50:49Z

Sample code

← Older revision		Revision as of 17:50, 27 January 2012
Line 38:		Line 38:
	[[Image:TA-dotted-line.png]]		[[Image:TA-dotted-line.png]]

	def myblock(tw, line_length):		<pre>
			def myblock(tw, line_length):
	''' Draw a dotted line of length line_length. '''		''' Draw a dotted line of length line_length. '''
	try: # make sure line_length is a number		try: # make sure line_length is a number
Line 58:		Line 59:
	tw.canvas.forward(line_length)		tw.canvas.forward(line_length)
	return		return
			</pre>
	You can pass a list of up to three arguments to tamyblock.py as in the example below that converts the input to an rgb value.		You can pass a list of up to three arguments to tamyblock.py as in the example below that converts the input to an rgb value.

	[[Image:TA-rgb.png]]		[[Image:TA-rgb.png]]

	def myblock(tw, rgb_array):		<pre>
			def myblock(tw, rgb_array):
	''' Set rgb color from values '''		''' Set rgb color from values '''
	tw.canvas.fgrgb = [(int(rgb_array[0]) % 256),		tw.canvas.fgrgb = [(int(rgb_array[0]) % 256),
	(int(rgb_array[1]) % 256),		(int(rgb_array[1]) % 256),
	(int(rgb_array[2]) % 256)]		(int(rgb_array[2]) % 256)]
			</pre>

	def myblock(tw, x):		def myblock(tw, x):

2012-01-27T21:49:36Z

Sample code

2012-01-21T21:21:03Z

Device I/O

← Older revision		Revision as of 17:21, 21 January 2012
Line 198:		Line 198:

	# The light sensor is only available on the XO 1.75		# The light sensor is only available on the XO 1.75
	device = '/sys/devices/platform/olpc-ols.0/~~power_state~~'		device = '/sys/devices/platform/olpc-ols.0/level'

	if os.path.exists(device):		if os.path.exists(device):
Line 232:		Line 232:
	cmd='sudo chmod 777 {!s}'.format(devicestr)		cmd='sudo chmod 777 {!s}'.format(devicestr)
	os.system(cmd) #caution! changing system file permissions		os.system(cmd) #caution! changing system file permissions
	fd =open(devicestr, 'rb')		fd = open(devicestr, 'rb')
	for x in range(12):		for x in range(12):
	fd.read(1) #does not return till the switch state changes		fd.read(1) #does not return till the switch state changes

2012-01-21T21:20:15Z

Device I/O

← Older revision		Revision as of 17:20, 21 January 2012
Line 178:		Line 178:
	\| screen brightness \|\| /sys/devices/platform/dcon/backlight/dcon-bl/actual_brightness \|\| OLPC XO		\| screen brightness \|\| /sys/devices/platform/dcon/backlight/dcon-bl/actual_brightness \|\| OLPC XO
	\|-		\|-
	\| accelerometer \|\| /sys/devices/platform/lis3lv02d/position \|\| OLPC XO 1.75		\| accelerometer \|\| /sys/devices/platform/lis3lv02d/position \|\| OLPC XO 1.75, 3.0
	\|-		\|-
	\| light sensor \|\| /sys/devices/platform/olpc-ols.0/~~power_state~~ \|\| OLPC XO 1.75		\| light sensor \|\| /sys/devices/platform/olpc-ols.0/level \|\| OLPC XO 1.75, 3.0
	\|-		\|-
	\| screen mode \|\| /sys/devices/platform/dcon/monochrome \|\| OLPC XO 1.75		\| screen mode \|\| /sys/devices/platform/dcon/monochrome \|\| OLPC XO 1.75, 3.0
	\|-		\|-
	\| charging \|\| /sys/devices/platform/olpc-battery.0/power_supply/olpc-ac/online \|\| OLPC XO		\| charging \|\| /sys/devices/platform/olpc-battery.0/power_supply/olpc-ac/online \|\| OLPC XO
	\|-		\|-
	\| clock date\|\| /sys/devices/platform/pxa2xx-i2c.1/i2c-1/1-0068/rtc/rtc0/date \|\| OLPC XO 1.75		\| clock date\|\| /sys/devices/platform/pxa2xx-i2c.1/i2c-1/1-0068/rtc/rtc0/date \|\| OLPC XO 1.75
	\|-		\|-
	\| clock time\|\| /sys/devices/platform/pxa2xx-i2c.1/i2c-1/1-0068/rtc/rtc0/time \|\| OLPC XO 1.75		\| clock time\|\| /sys/devices/platform/pxa2xx-i2c.1/i2c-1/1-0068/rtc/rtc0/time \|\| OLPC XO 1.75

2011-10-30T07:27:15Z

Device I/O

← Older revision		Revision as of 03:27, 30 October 2011
Line 177:		Line 177:
	\|-		\|-
	\| screen brightness \|\| /sys/devices/platform/dcon/backlight/dcon-bl/actual_brightness \|\| OLPC XO		\| screen brightness \|\| /sys/devices/platform/dcon/backlight/dcon-bl/actual_brightness \|\| OLPC XO
			\|-
			\| accelerometer \|\| /sys/devices/platform/lis3lv02d/position \|\| OLPC XO 1.75
	\|-		\|-
	\| light sensor \|\| /sys/devices/platform/olpc-ols.0/power_state \|\| OLPC XO 1.75		\| light sensor \|\| /sys/devices/platform/olpc-ols.0/power_state \|\| OLPC XO 1.75

2011-09-19T07:07:07Z

Device I/O

← Older revision		Revision as of 03:07, 19 September 2011
Line 187:		Line 187:
	\|-		\|-
	\| clock time\|\| /sys/devices/platform/pxa2xx-i2c.1/i2c-1/1-0068/rtc/rtc0/time \|\| OLPC XO 1.75		\| clock time\|\| /sys/devices/platform/pxa2xx-i2c.1/i2c-1/1-0068/rtc/rtc0/time \|\| OLPC XO 1.75
			\|-
			\|cpu temperature\|\| /sys/devices/platform/via_cputemp.0/temp1_input \|\| OLPC XO 1.5
	\|}		\|}

2011-08-30T09:52:12Z

Device I/O

← Older revision		Revision as of 05:52, 30 August 2011
Line 213:		Line 213:
	* power button: /dev/input/event1		* power button: /dev/input/event1
	* lid switch: /dev/input/event2		* lid switch: /dev/input/event2
	* ebook: /dev/input/event3		* ebook: /dev/input/event3 (XO-1.75) event4 (XO-1.0 - 1.5)
	* headphone jack: /dev/input/event7		* headphone jack: /dev/input/event7
	* microphone jack: /dev/input/event8		* microphone jack: /dev/input/event8
	* rotate, cursor, and game pad keys: /dev/input/event10		* rotate, cursor, and game pad keys: /dev/input/event10 (XO-1.75) event6 (XO-1.0 - 1.5)
	* mouse : /dev/input/mice		* mouse : /dev/input/mice

2011-08-30T01:28:05Z

Device I/O

← Older revision		Revision as of 21:28, 29 August 2011
Line 206:		Line 206:
	Look in /sys/devices on your computer to find other devices you may be able to access.		Look in /sys/devices on your computer to find other devices you may be able to access.

	You can ~~use~~ the od (octal dump) command to inspect these events, eg		You can also read events in /dev/input . Use the od (octal dump) command to inspect these events, eg
	sudo od /dev/input/event0		sudo od /dev/input/event0

2011-08-30T01:26:22Z

Device I/O

← Older revision		Revision as of 21:26, 29 August 2011
Line 204:		Line 204:
	tw.lc.heap.append(-1)		tw.lc.heap.append(-1)

	Look in /sys/devices on your computer to find other devices you may be able to access.		Look in /sys/devices on your computer to find other devices you may be able to access.

	~~Also you~~ can access the following events on the X0-1.75, (some on X0-1.0 -1.5)		You can use the od (octal dump) command to inspect these events, eg
			sudo od /dev/input/event0

			You can access the following events on the X0-1.75, (some on X0-1.0 -1.5)
	* accelerometer: /dev/input/event0 ???		* accelerometer: /dev/input/event0 ???
	* power button: /dev/input/event1		* power button: /dev/input/event1
Line 215:		Line 218:
	* rotate, cursor, and game pad keys: /dev/input/event10		* rotate, cursor, and game pad keys: /dev/input/event10
	* mouse : /dev/input/mice		* mouse : /dev/input/mice


			For example, the code below waits till the ebook switch state changes and pushes the status to the heap

	def myblock(tw, x): # ignores second argument		def myblock(tw, x): # ignores second argument