1.3" LCD with Pico 2 W

Support
1

Hi folks!

I’m struggling to get any image out of my 1.3" SPI Colour Square LCD (240x240) Breakout. I’ve wired it to my Pico 2 W per the pins on the item page. 1.3" SPI Colour Square LCD (240x240) Breakout

I’ve installed the latest micropython Pico 2 W .utf from here:

And have tried out the example here (I can’t put more than 2 links in a post as a new user!):

github .com/pimoroni/pimoroni-pico/blob/main/micropython/examples/breakout_colourlcd240x240/balls_demo.py

I don’t get any errors at all, the screen flashes (BL turns off and on) when I execute my code but no graphics show. Does anyone have any suggestions on how to debug this further?

2

How have you got it wired, what type of connection do you have with the breakouts solder pads?

3

I’ve got it wired (and quadruple checked :~)):

  • 3-5V to VBUS

  • CS to GP17

  • SCK to GP18

  • MOSI to GP19

  • DC to GP16

  • BL to GP20

  • GND to GND

It’s all on a breadboard at the moment so I’m just using pins to connect the display and jumper cables.

4

Header soldered onto the Breakout?
Header soldered on the Pico?
Did you do any of the soldering?

5

The pins used look OK to me, the breakout garden uses the following.
Which is what the examples use.

Capture
Capture543×548 39.2 KB

6

image
image1920×1446 304 KB

Pin header holding the display in place, wires on breadboard is all I have. No soldering done yet :¬)

7

That’s likely your issue, your not making a good contact to the breakouts contacts.

8

Ah ok, thanks! Do you have any recommendations for testing which contacts might have a poor connection? I want to use the display in a project that will eventually be soldered but I’m not quite ready yet.

9

You were absolutely right by the way! Applying a small amount of pressure to the top of the display has made sure all of the contacts connect and I am seeing results! Thank you so much!

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10

That’s a scenario that plays out here quite often. I can “almost” solder with my eyes closed, lol. But I’ve had years and years of practice, showing my age much, =).
Anyway, I use a lot of those Pimoroni breakouts in my projects so I bought a Breakout Garden Pack and Hat etc. Easy Peasy to test it on a Pico or Pi with no soldering. Saves on the “why wonder why” moments.;)

11

Thanks alphanumeric! Really appreciate your help :)

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