LCD example library? (it's for a birthday present)

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wusah
Posts: 4
Joined: Thu Jan 03, 2019 12:37 am

LCD example library? (it's for a birthday present)

Post by wusah » Thu Jan 03, 2019 12:44 am

I have got a Pyboard with the lcd160cr. I know the most basic commands and can get some basic writings on the lcd. However, I would like to get my girlfriend (who also has a Pyboard) a nice birthday message on her board. Using some running text and some images. Unfortunately it turns out my Micropython skills are way too bad for doing this all by myself. Are there some pre-build examples I could use? Some fancy looking messages on the lcd maybe? I want to learn, but I can't learn it all until tomorrow :(

chuckbook
Posts: 68
Joined: Fri Oct 30, 2015 11:55 pm

Re: LCD example library? (it's for a birthday present)

Post by chuckbook » Thu Jan 03, 2019 9:20 am

Did you have a look at https://www.youtube.com/watch?v=OOz9U_YdstM ?
If there is a demo that matches your needs I will provide you with that code.

wusah
Posts: 4
Joined: Thu Jan 03, 2019 12:37 am

Re: LCD example library? (it's for a birthday present)

Post by wusah » Thu Jan 03, 2019 12:42 pm

YES! I was so excited when I found this video and so sad when I realized that there's no code for it.
Thanks so much! It is a great demonstration!
I really don't know if I can ask for that much, but is it possible to get the codes for these?

-Rainbow background animation at 0:55.
-Also the Poor Man's Microbit scrolling text around 1:55 and 2:08.
-Wow, the 20th century text and starwars from 4:27 is perfect!
-Touch from 5:47
-Slide collection 6:14

I would be really, really gratefull!

chuckbook
Posts: 68
Joined: Fri Oct 30, 2015 11:55 pm

Re: LCD example library? (it's for a birthday present)

Post by chuckbook » Thu Jan 03, 2019 10:39 pm

Just one for now....

Code: Select all

import lcd160cr
import uctypes

lcd = None

frame_cnt = 0
frame = None

rtc = pyb.RTC()

def idle_wait(dt=0):
    pyb.delay(dt)

def d01_clock(dt=40, sh=1, fmt='%2d:%02d:%02d', init=0):
    global frame_cnt
    if init == 2:
        return 'clock', -1
    elif init == 3:
        return
    if init:
        lcd.set_spi_win(2, 2, lcd.w-4, lcd.h-4)
        desc = { "arr":(uctypes.ARRAY | 0, uctypes.UINT16 | 128*16) }
        xx = uctypes.struct(uctypes.addressof(frame), desc, uctypes.NATIVE).arr
        # 1,0,0 --> 1,1,0 --> 0,1,0 --> 0,1,1 --> 0,0,1 --> 1,0,1 --> 1,0,0
        def rgb(r, g, b):
            v = 150
            return lcd.rgb((r*v) >> 8, (g*v) >> 8, (b*v) >> 8)

        for i in range(0, 256, 4):
            ix = i >> 2
            xx[ix] = rgb(255, i, 0)
            xx[ix+0x40] = rgb(255-i, 255, 0)
            xx[ix+0x80] = rgb(0, 255, i)
            xx[ix+0xc0] = rgb(0, 255-i, 255)
            xx[ix+0x100] = rgb(i, 0, 255)
            xx[ix+0x140] = rgb(255, 0, 255-i)
            xx[ix+0x180] = rgb(255, i, 0)

            xx[ix+0x1c0] = rgb(255-i, 255, 0)
            xx[ix+0x200] = rgb(0, 255, i)
            xx[ix+0x240] = rgb(0, 255-i, 255)
            xx[ix+0x280] = rgb(i, 0, 255)
            xx[ix+0x2c0] = rgb(255, 0, 255-i)
            xx[ix+0x300] = rgb(255, i, 0)

            xx[ix+0x340] = rgb(255-i, 255, 0)
        if lcd.w < 160:
            scale = 2
        else:
            scale = 3
        lcd.set_font(0,scale,0,1)

    if lcd.w < 160:
        xoff = (lcd.w-8*4*3) // 2
        yoff = (lcd.h-5*3) // 2
    else:
        xoff = (lcd.w-8*4*4) // 2
        yoff = (lcd.h-5*4) // 2
    if lcd.is_touched():
        return False
    spi = lcd.fast_spi()
    for i in range(lcd.h-4):
        ix = 8*(frame_cnt)+i & 0x3fe
        spi.write(memoryview(frame)[ix:ix+(lcd.w-4)*2])

    if dt:
        res = rtc.datetime()
        s = fmt % (res[4],res[5],res[6])
        lcd.set_text_color(lcd.rgb(200, 200, 200), 0)
        lcd.set_pos(xoff+sh, yoff+sh)
        lcd.write(s)
        lcd.set_pos(xoff-sh, yoff-sh)
        lcd.write(s)
        lcd.set_pos(xoff, yoff)
        lcd.set_text_color(lcd.rgb(48, 88, 48), 0)
        lcd.write(s)
        idle_wait(dt)
    frame_cnt += 1
    return True

def main(connect='X'):
    global lcd
    global frame
    lcd = lcd160cr.LCD160CR(connect)
    frame = bytearray(lcd.w*lcd.h*2)
    d01_clock()
    d01_clock(init=1)
    while d01_clock(init=0): pass

if __name__ == "__main__":
    """ Use proper connection mode, X, Y, XY or YX
    """
    main('XY')

wusah
Posts: 4
Joined: Thu Jan 03, 2019 12:37 am

Re: LCD example library? (it's for a birthday present)

Post by wusah » Fri Jan 04, 2019 12:02 am

I'm getting some strange error message, but thank you :)

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