Pico Plus 2 W & Display Pack 2.8 Nothing Renders

Support
1

Nothing is rendering on this screen when I use a Pico Plus 2 W. If I use a regular Pico 2 it works as expected. Using the Pimoroni Firmware (1.26.1) for the pico plus 2. What am I missing here?

pimoroni_pico_plus2-v1.26.1-micropython.uf2

2

Working OK for me?

import time
import random
from picographics import PicoGraphics, DISPLAY_PICO_DISPLAY_2, PEN_P8
from pimoroni import RGBLED, Button

display = PicoGraphics(display=DISPLAY_PICO_DISPLAY_2, pen_type=PEN_P8)
display.set_backlight(1.0)

WIDTH, HEIGHT = display.get_bounds()

led = RGBLED(26, 27, 28)
led.set_rgb(0, 0, 0)

from machine import Pin

button_a = Pin(12, Pin.IN, Pin.PULL_UP)
button_b = Pin(13, Pin.IN, Pin.PULL_UP)
button_x = Pin(14, Pin.IN, Pin.PULL_UP)
button_y = Pin(15, Pin.IN, Pin.PULL_UP)


# We're creating 100 balls with their own individual colour and 1 BG colour
# for a total of 101 colours, which will all fit in the custom 256 entry palette!


class Ball:
    def __init__(self, x, y, r, dx, dy, pen):
        self.x = x
        self.y = y
        self.r = r
        self.dx = dx
        self.dy = dy
        self.pen = pen


# initialise shapes
balls = []
for i in range(0, 100):
    r = random.randint(0, 10) + 3
    balls.append(
        Ball(
            random.randint(r, r + (WIDTH - 2 * r)),
            random.randint(r, r + (HEIGHT - 2 * r)),
            r,
            (14 - r) / 2,
            (14 - r) / 2,
            display.create_pen(random.randint(0, 255), random.randint(0, 255), random.randint(0, 255)),
        )
    )

BG = display.create_pen(40, 40, 40)

while True:
    
    if button_a.value() == 0:
        led.set_rgb(255, 0, 0)
    elif button_b.value() == 0:
        led.set_rgb(0, 255, 0)
    elif button_x.value() == 0:
        led.set_rgb(0, 0, 0)
    elif button_y.value() == 0:
        led.set_rgb(0, 0, 255)
    else:
        display.set_pen(BG)
        display.clear()        
    
        for ball in balls:
            ball.x += ball.dx
            ball.y += ball.dy

            xmax = WIDTH - ball.r
            xmin = ball.r
            ymax = HEIGHT - ball.r
            ymin = ball.r

            if ball.x < xmin or ball.x > xmax:
                ball.dx *= -1

            if ball.y < ymin or ball.y > ymax:
                ball.dy *= -1

            display.set_pen(ball.pen)
            display.circle(int(ball.x), int(ball.y), int(ball.r))

        display.update()
        time.sleep(0.01)

EDIT: Did you solder the headers on the Pico 2W

3

Yeah that code runs but doesn’t render to the screen. I did solder header pins to the pico plus 2 w. You think that has something to do with it?

4

Couldn’t hurt to have a good look at them and or post a pic.
The pins used are as follows, except for the RGB LED. Instead of 6, 7, 8 it’s 26, 27, 28. I just realized I tested with a Display Pack 2 not the 2.8, shouldn’t make any difference other than the onboard LED pins used. The rest of the code is identical.

displaypack_600x600
displaypack_600x600600×552 41.3 KB

5

Yeah, the 2.8” takes DISPLAY_PICO_DISPLAY_2 in the PicoGraphics constructor which I changed when running your demo code. I checked my solder job and it seems to be fine.

6

Ah, it’s DISPLAY_PICO_DISPLAY_2 for the 2 and 2.8, and that’s what I had in my code? I have a 2.8 I can test with if you want?

Anyway, you know the display works, and the code is good, so there must be an issue going on with the Pico Plus 2?