9. Make a compass - Revision history

Sinovoip at 10:39, 21 February 2019

2019-02-21T10:39:42Z

Sinovoip at 03:18, 20 February 2019

2019-02-20T03:18:37Z

Sinovoip at 02:24, 20 February 2019

2019-02-20T02:24:36Z

Sinovoip at 02:12, 20 February 2019

2019-02-20T02:12:46Z

Sinovoip: /* sample code */

2019-02-19T01:22:45Z

‎sample code

Sinovoip: /* Function of compass */

2019-02-19T01:21:37Z

‎Function of compass

Sinovoip: /* Function of compass */

2019-02-19T01:18:01Z

‎Function of compass

Sinovoip: Created page with "=compass= This module gives you access to the built-in electronic compass (mpu). The compass should be calibrated before use, otherwise the reading may be wrong. note:The al..."

2019-02-19T01:17:51Z

Created page with "=compass= This module gives you access to the built-in electronic compass (mpu). The compass should be calibrated before use, otherwise the reading may be wrong. note:The al..."

New page

=compass=

This module gives you access to the built-in electronic compass (mpu). The compass should be calibrated before use, otherwise the reading may be wrong.

note:The alignment compass causes the program to pause until the alignment is complete. Calibration consists of a small game, by rotating the board in the air to complete the circle calibration.

==Function of compass==

*compass.calibrate()
::Perform this function to start the calibration process, you will receive a has a guiding significance to the information, then we need to rotate the board and in the air to draw a handstand '8' or circle, (this movement can refer to your mobile phone, mobile phone function of compass will have a calibration steps before use), the calibration process will take about 1 minute of time, you can't perform other procedures during calibration
::Notice message
[[File:Prompt.png]]

@@ Line 26: / Line 26: @@
 [[File:Micropython2.png|thumb|[[12 S2m Scratch2]] ]]
 [[File:Micropython2.png|thumb|[[13 Codelab Scratch3]] ]]
 =compass=

@@ Line 1: / Line 1: @@
+[[File:Webduino_gif.gif|thumb|Overview: [[BPI-Bit]]]]
 [[File:Micropython3.png|thumb|[[1 Get the development suite]] ]]
 [[File:Micropython2.png|thumb|[[2 Wired connection board]] ]]
@@ Line 11: / Line 11: @@
 [[File:Micropython2.png|thumb|[[3 Mpfshell details]] ]]
 [[File:Micropython2.png|thumb|[[4 Pycharm IDE programming]] ]]
-[[File:Micropython2.png|thumb|[[3 Bottom IO port control] ]]
 [[File:Micropython5.png|thumb|[[1. Panel scrolling text]] ]]

@@ Line 11: / Line 11: @@
 [[File:Micropython2.png|thumb|[[3 Mpfshell details]] ]]
 [[File:Micropython2.png|thumb|[[4 Pycharm IDE programming]] ]]
 [[File:Micropython5.png|thumb|[[1. Panel scrolling text]] ]]
 [[File:Micropython2.png|thumb|[[2. Panel display images]] ]]
-[[File:Micropython2.png|thumb|[[3 Bottom IO port control] ]]
+[[File:Micropython2.png|thumb|[[3 Bottom IO port control]] ]]
 [[File:Micropython2.png|thumb|[[4 Panel key detection]] ]]
 [[File:Micropython2.png|thumb|[[5 Gets the board temperature]] ]]

← Older revision		Revision as of 02:12, 20 February 2019
Line 1:		Line 1:
		+
		+	[[File:Micropython3.png\|thumb\|[[1 Get the development suite]] ]]
		+	[[File:Micropython2.png\|thumb\|[[2 Wired connection board]] ]]
		+	[[File:Micropython2.png\|thumb\|[[3 Try burning the board]] ]]
		+	[[File:Micropython2.png\|thumb\|[[4 Hello, World!]] ]]
		+	[[File:Micropython2.png\|thumb\|[[5 Light up all kinds of LED]] ]]
		+
		+
		+	[[File:Micropython4.png\|thumb\|[[1 Auto series one key burn]] ]]
		+	[[File:Micropython2.png\|thumb\|[[2 ESPBlocks Beginner's only]] ]]
		+	[[File:Micropython2.png\|thumb\|[[3 Mpfshell details]] ]]
		+	[[File:Micropython2.png\|thumb\|[[4 Pycharm IDE programming]] ]]
		+
		+	[[File:Micropython5.png\|thumb\|[[1. Panel scrolling text]] ]]
		+	[[File:Micropython2.png\|thumb\|[[2. Panel display images]] ]]
		+	[[File:Micropython2.png\|thumb\|[[3 Bottom IO port control] ]]
		+	[[File:Micropython2.png\|thumb\|[[4 Panel key detection]] ]]
		+	[[File:Micropython2.png\|thumb\|[[5 Gets the board temperature]] ]]
		+	[[File:Micropython2.png\|thumb\|[[6 Play MIDI music]] ]]
		+	[[File:Micropython2.png\|thumb\|[[7 Photosensitive gesture]] ]]
		+	[[File:Micropython2.png\|thumb\|[[8. MPU-9250 9-axis sensor]] ]]
		+	[[File:Micropython2.png\|thumb\|[[9. Make a compass]] ]]
		+	[[File:Micropython2.png\|thumb\|[[10 Free to define gestures]] ]]
		+	[[File:Micropython2.png\|thumb\|[[11 Random number generator]] ]]
		+	[[File:Micropython2.png\|thumb\|[[12 S2m Scratch2]] ]]
		+	[[File:Micropython2.png\|thumb\|[[13 Codelab Scratch3]] ]]
		+
	=compass=		=compass=

← Older revision		Revision as of 01:22, 19 February 2019
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	needle = ((15 - compass.heading()) // 30) % 12		needle = ((15 - compass.heading()) // 30) % 12
	display.show(Image.ALL_CLOCKS[needle])		display.show(Image.ALL_CLOCKS[needle])
		+
		+	In this sample code the first step is to calibrate the electronic compass (mpu). After the calibration, we can see that we have a compass on the led panel. No matter how we turn the board, it always points to the south. Right
		+
		+	[[File:Compass.gif]]

← Older revision		Revision as of 01:21, 19 February 2019
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	::Notice message		::Notice message
	::::[[File:Prompt.png]]		::::[[File:Prompt.png]]
		+
		+	*compass.is_calibrated ()
		+	::Returns True if compass calibration is successful, or False otherwise
		+
		+	*compass.get_x ()
		+	::Returns a reading of the strength of the magnetic field on the X-axis, which is a positive or negative integer, depending on the direction of the magnetic field.
		+
		+	*compass.get_y ()
		+	::Returns a reading of the magnetic field intensity on the Y-axis, which is a positive or negative integer, depending on the direction of the magnetic field.
		+
		+	*compass.get_z ()
		+	::Returns a reading of the z-axis magnetic field intensity, which is a positive or negative integer, depending on the direction of the magnetic field
		+
		+	*compass.heading()
		+	::The compass heading calculated from the above readings is an integer between 0 and 360, representing a clockwise Angle of 0 at 12 o 'clock
		+
		+	*compass.get_field_strength()
		+	::Returns the size of the magnetic field around the device, which is an integer.
		+
		+	==sample code==
		+
		+	"""
		+	compass.py
		+	Creates a compass.
		+	The user will need to calibrate the compass first. The compass uses the
		+	built-in clock images to display the position of the needle.
		+	"""
		+	from microbit import *
		+	# Start calibrating
		+	compass.calibrate()
		+	# Try to keep the needle pointed in (roughly) the correct direction
		+	while True:
		+	sleep(100)
		+	needle = ((15 - compass.heading()) // 30) % 12
		+	display.show(Image.ALL_CLOCKS[needle])

@@ Line 10: / Line 10: @@
 ::Perform this function to start the calibration process, you will receive a has a guiding significance to the information, then we need to rotate the board and in the air to draw a handstand '8' or circle, (this movement can refer to your mobile phone, mobile phone function of compass will have a calibration steps before use), the calibration process will take about 1 minute of time, you can't perform other procedures during calibration
 ::Notice message
-[[File:Prompt.png]]
+::::[[File:Prompt.png]]