198 Wio: Readying A Wio Terminal for IX systems (198.html)

Keywords

IX or DC (IX by DC) or "|><"

Introduction

Exploring a New Wio Terminal

	minicom -o -D /dev/ttyACM0
	

	Removable medium is inserted
	Type of medium: removable disk
	
	Select the action that you want to perform:
	Open in File Manager
	         Cancel  OK
	

	INFO_UF2.TXT
	INDEX.HTM
	CURRENT.UP2
	

This is what one should expect to see on a new Wio Terminal.

 Watch what happens when I do the following:

I close the Terminal windows that are open.
I power off the Wio Terminal. 
Then I power it on (but not double-clicking)
Then I open a Terminal window.
The I type the up arrow a few times until the "minicom" command appears which is

	

	minicom -o -D /dev/ttyACM0
	

If it wasn't typed in previously, I type it in, instead.
Then I hit Enter to start minicom.  The minicom program will see that the WioTerminal is connected to the USB port
The following reply from minicom should immediately appear:

	Welcome to minicom 2.8
	OPTIONS: I18N
	Port /dev/ttyACM0, 02:37:18

	Press CTRL-A Z for help on special keys.
	

>>>

Explore the REPL

Watch what happens when I power off the Wio Terminal.

Then I hit Enter, then CTRL-A, then Z, then W to turn line-wrap on, then Enter to exit from the minicom Menu

Then I power off the Wio Terminal and power it back on again.

Then I see ">>>" which is the REPL.  Then the Wio Terminal tried to boot up

I . . . 

	Press any key to enter the REPL. 
	REPL will respond to any of the following commands 

	>>>Enter	to redisplay the REPL prompt >>>
	CTRL-B		to see the MicroPython blurb
	CTRL-D		to soft reboot. and see the MicroPython blurb
 	import sys	to import the sys modules
                          then
	dir(sys)	to display the sys classes
			  argv, . . . platform . .  version, version_info etc
	help(sys)	lists ~20 commands
	sys.version	'3.4.0; MicroPython v1.20.0 on 2023-04-26'
	import os	to import the os modules
	then
	dir(os)		to display the os classes
	os.getcwd()	displays '/'
	help(os)	lists the os functions (modules)
	os.urandom(1)	returns a random character
	for s in os.ilistdir():
	    print(s)	prints ('newDC', 16384 , 0, 0 )
	#for end
	import machine	to import the machine modules
	dir(machine)	lists  ADC etc
	help(machine)	lists obj & modules
	import board	********** fails ************	
	

import sys

	help(sys)
	----------
	objext  is of type module
	__name__--sys
	path -- ['','/','.frozen','/lib']
	argv -- []
	version --  3.4.0'
	version_info -- (3, 4, 0)
	implementation -- (name='micropython', version=(1, 11, 0))
	platform -- Afmel SAMD51
	byteorder -- little
	maxsize -- 2147483647
	exit -- 
	stdin -- 
	stdout -- 
	stderr -- 
	modules -- {}
	print_exception -- 
	

import os

	help(os)
	---------
	objext  is of type module
	__name__ --uos
	uname -- 
	chdir -- 
	getcwd -- 
	ilistdir -- 
	mkdir -- 
	remove -- 
	rmdir -- 
	stat -- 
	statvfs -- 
	unlink -- 
	sync -- 
	sep -- /
	mount -- 
	umount -- 
	VfsFat -- 
	

import machine

	dir(machine)
	--------------
	[ '__name__,,
	'ADC'.
	'DCA',
	'LCD',
	'Map',
	'PWM',
	'Pin',
	'Sprite',
	'UART']
	

	help(machine)
	--------------
	objext  is of type module
	__name__,, machine
	Pin -- < class 'Pin'>
	ADC --  < class 'ADC'>
	DCA -- < class 'DCA'>
	LCD -- < class 'LCD'>
	Map -- < class 'Map'>
	PWM -- < class 'PWM'>
	UART -- < class 'UART'>
	Sprite -- < class 'Sprite'>
	

Reboot the Wio Terminal

Currently I have a "bad" main.py program, so I get the following error messages:
	
	Auto load main.py by saving files over USB to execute the ?? r enter REPL to disable.
	
	main.py output
	Traceback (most current call last):
	   File "main.py" line 8, in <module>
	import error: cannot import SPI
	Micropython e2f4a00-dirty on 2020-08-14; Ardupy with seeed
	Type "help() for more information
	>>>
	

>>>help()

	Welcome to MicroPython!
	For online help please visit http://micropython.org/help/.
	
	
	               S E E E D  S T U D I O
	
	For further help on a specific object, type help(obj)
	>>>
	

Reboot with a new main.py program

	Removable medium is inserted
	. . . 
	open in file manager
	with buttons Cancel & OK
	

	Press any key to enter the REPL, Use CTRL-D to soft reboot

	Auto load main.py by saving files over USB to execute them or to use REPL to disable.
	
	main.py output:
	
	B:isInUse0: False
	
	C in loop, monitoring button(s)
	device is not yet "Wio Terminal", enter a char eg 'e' then Enter
	

		! @ #
	
	                   u
	                 l e r
	                   d
	
	The top left row is/are the 3 buttons along the top edge of the Wio Terminal
	The 5 lower right buttons represent the micro joyStock buttons.
	If no button is touched on the Wio Terminal, the program should
	receive an "n" meaning null.  The only button that the main.py 
	program is expecting is the "e", which it will interpret as the
	"Enter" key.
	

	E after return from anyButton, isInUse0: True
	F. in main, after anyButton, saw:
	
	C: In loop, monitoring buttons(s)
	device is not yet "wio Terminal", enter a char eg "e" then Enter
	

ArduPy

I found one of my Wio Terminal devices (with and id: ":93" written on it)
I found a copy of "ArduPy_wio_terminal_lastest.uf2" on my RPi.
With it was a main.py containing only:

	progName="IX_23E18.py"
	print(progName)

Then I connected a cable from the RPi to the WioTerminal.
Then I double clicked (flashed) the Wio Terminal.
Then I accepted for the file manager to open the "Arduino" volume.
Then I used copy-n-paste to copy the "ArduPy_wio_terminal_lastest.uf2" onto the "Arduino" volume name
Then it automatically rebooted the Wio Terminal
Then I accepted for the file manager to open the "new" ARDUPY volume.
The file manager showed the "/media/pi/ARDUPY" volume to contain:

	

	ArduPy_wio_terminal_lastest.uf2
	INDEX.HTM
	INFO_UF2.TXT
	main.py                                          (39 bytes)
	

I opened a new Terminal window
I started up minicom,
Then I hit CTRL-A Z, then W
and saw no prompt
Then I hit Enter
and saw the REPL prompt: >>>
Then I hit CTRL-D
and saw

	Press any key to enter the REPL, Use CTRL-D to soft reboot

	Auto load main.py by saving files over USB to execute them or to use REPL to disable.
	>>>

Then I hit CTRL-D again
It again said

	Press any key to enter the REPL, Use CTRL-D to soft reboot

	Auto load main.py by saving files over USB to execute them or to use REPL to disable.
	>>>

Then I hit CTRL-D again
It said
	soft reboot
	e()" for more information
	enter REPL for more information
	
Then I hit CTRL-D again
It said

	main.py output:

	IX_23E18.py
	Micropython e2f4a00-dirty on 2020-08-14; Ardupy with seeed
	Type "hel

Then I restarted the reboot process again

I powered off the Wio Terminal
I closed the Terminal window
I opened the Terminal window
I started minicom
I powered on the Wio Terminal
It asked to open the File Manage
I said OK
The Terminal window said
	Welcome to minicom 2.8
	OPTIONS: I18N
	Port /dev/ttyACM0, 02:37:18

	Press CTRL-A Z for help on special keys.
I hit CTRL-A Z then W 
It showed the menu and then erased it
I hit CTRL-D
It said
	IX_23E18.py
	Micropython e2f4a00-dirty on 2020-08-14; Ardupy with seeed
	Type "help
I hit CTRL-D
it said
	soft reboot
	enter REPL to disable

	main.py output:

	IX_23E18.py
	Micropython e2f4a00-dirty on 2020-08-14; Ardupy with seeed
	Type "help
I hit CTRL-D
It said
	soft reboot
	enter REPL to disable

	main.py output:

	IX_23E18.py
	Micropython e2f4a00-dirty on 2020-08-14; Ardupy with seeed
	Type "help

Apparently, CTRL-D always initiates a soft reboot and then restarts the "main.py" program .

import machine
dir(machine)
then hit CTRL-D numerous times

	Micropython e2f4a00-dirty on 2020-08-14; Ardupy with seeed
	Type "help

Conclusion

Other Related Thoughts

Sources

Video Sources

Wio Terminal Classroom with Ardupy #5 | AIP Usage & Ardupy Libraries (25:07 min)

Web Sources

www

How to Install AIP

www

K001-V26