MicroPython Forum (Archive)

Hi there,
I'm pretty new with MicroPython and the Pyboard v1.1 and therefore still a bit unsafe.
I activated the board successful and then I tried to activate the LCD160CR. Unsuccessful. This is what I did:

Following the tutorial on micropython.org https://micropython-pfalcon.readthedocs ... _skin.html
I tried to activate

5. The LCD160CR skin

First I updated firmware successful with pybv11-20170219-v1.8.7-292-g3d739eb.dfu which was announced to be the newest on GitHub, using STs DfuSe_Demo_V3.0.5_Setup.exe. Then I continued using the Putty-console, following the tutorial

5.3. Testing the display

>>> import lcd160cr
>>> import lcd160cr_test
To run all tests: test_all(<lcd>)
Individual tests are: test_features, test_mandel
<lcd> argument should be a connection, eg "X", or an LCD160CR object
>>> test_all('Y')
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
NameError: name 'test_all' is not defined
>>>

I tried both positions X and Y, then I tried to awake the display again following the tutorial

5.6. Directing the MicroPython output to the display

>>> import pyb
>>> uart=pyb.UART('XA',115200)
>>> pyb.repl_uart(uart)

The result can be called no result, display shows no sign of life. Please help! What's wrong? What am I doing wrong?

Please try:

>>> import lcd160cr
>>> import lcd160cr_test
>>> lcd160cr_test.test_all('X')
for the X-Position or
>>> lcd160cr_test.test_all('Y')
for the Y-Position

This was the crucial advice, thank you tine3700

Hi there, can someone help me with this subject:

In order to realize my display projects I want to get rid of the initially shown MicroPython logo and the display info. Tried these two setup commands: LCD160CR.set_startup_deco(value) and LCD160CR.save_to_flash() with the parameters pointed out in "MicroPython Documentation, Release 1.8.7, sheet #114 without success.

Will be thankful for any advice how to manage it?

Ruedi

Try: instead of:

Hi chuckbook, thanx for your advice, unfortunately not working.
This is the script I'm using it with:

>>>import lcd160cr
>>>lcd=lcd160cr.LCD160CR('X')
unwanted label and info are displayed
>>>lcd.write(b'\x02fn')
no change

>>>lcd.erase() did the job

Was hidden under MicroPython Documentation, Release 1.8.7, sheet 115, "Drawing primitive shapes". Should better be situated under "Setup Commands", as I would propose.

Feel free to submit a documentation PR on github.

You missed something:
erase() just fills the screen with whatever color was selected by set_pen()

Thanks a lot from a beginner, chuckbook