[Guide] ili9341 SPI TFT Screen on Retropie
- moosepr
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Re: [Guide] ili9341 SPI TFT Screen on Retropie
yeah you can have a play, the faster the better really, although if you go too fast, the screen will just show garbage
you wont break the screen dont worry
you wont break the screen dont worry
Get a small cheep LCD in your project https://www.sudomod.com/forum/viewtopic.php?f=22&t=2312
Wrap it all round a battery https://www.sudomod.com/forum/viewtopic.php?f=13&t=2292
Or use a custom PCB to make it really small https://www.sudomod.com/forum/viewtopic.php?f=13&t=2512
or make it really really really really tiny!! https://www.sudomod.com/forum/viewtopic.php?f=13&t=2919
Wrap it all round a battery https://www.sudomod.com/forum/viewtopic.php?f=13&t=2292
Or use a custom PCB to make it really small https://www.sudomod.com/forum/viewtopic.php?f=13&t=2512
or make it really really really really tiny!! https://www.sudomod.com/forum/viewtopic.php?f=13&t=2919
- Holydohnut
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Re: [Guide] ili9341 SPI TFT Screen on Retropie
I'll give it a go. Cheers!
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My first MintyPi
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My first MintyPi
http://www.sudomod.com/forum/viewtopic.php?f=32&t=3466
The PiddlyPi! My first self build
http://www.sudomod.com/forum/viewtopic.php?f=13&t=4171
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Re: [Guide] ili9341 SPI TFT Screen on Retropie
yes, you were right, pins all mixed up.moosepr wrote: ↑Mon Aug 21, 2017 2:21 amah i think you might have pin and gpio mixed up the screen pins tend to be in a bunch near the center of the gpio
kinda like this
the bunch at the bottom are for GPIO buttons
Display--------Raspberry Pi
BL--------------pin 12 (GPIO 18)
SCK------------pin 23 (GPIO 11)
MISO----------pin 21 (GPIO 9)
MOSI----------pin 19 (GPIO 10)
CS--------------pin 24 (GPIO 8)
RST------------pin 22 (GPIO 25)
D/C-------------pin 18 (GPIO 24)
VIN-------------pin 17 (3.3v)
GND-----------pin 20 (GND)
however re-wired and still have white screen, maybe something i leave for a while and come back to in the future
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Re: [Guide] ili9341 SPI TFT Screen on Retropie
I am hooking up the 3.2" inch screen from aliexpress using your pcb (from oshpark). Only thing that works up to now is the backlight...moosepr wrote: ↑Mon Aug 07, 2017 3:53 amThat screen looks to be just a larger ili9341. With a bit of careful soldering you could transplant the larger screen into to board of a smaller screen
Or you can get a custom board made up to let you use the screen like the one I designed a while back
https://oshpark.com/projects/BP9tGKag
This is designed for a 2.2 inch screen which only has 14 pins, but the last 4 pins on larger screens are only for touch, so you can overhang them
IMG_20161229_213514.jpg
I was checking the PCB (I have 3 pieces). On the non-soldered board, SCL and RST are shorted. Should that be the case?
These are my current connections:
PIN LCD PIN OSHPARK PIN PI Zero
1 GND 2 GND PIN 20 GND
2 RESET 4 - 3 --> 3 RST PIN 22 GPIO25
3 SCL 3 - 4 --> 4 SCL PIN 23 SPI_CLK
4 D/C 5 DCX PIN 18 GPIO24
5 CS 6 CSX PIN 24 GPIO8
6 SDA 7 SDI PIN 19 SPI/MOSI
7SDO 8 SDO PIN 21 SPI/MISO
8 GND 2 GND PIN20 GND
9 VCC 1 VCC PIN17 3.3V
10 LED 10 ohm vcc
11LED 2 GND
12 LED 2 GND
13 LED 2 GND
14 LED 2 GND
- moosepr
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Re: [Guide] ili9341 SPI TFT Screen on Retropie
Hmm, im assuming the 3.2 inch screen has 18 pins? Do you have a link to the screen you bought?
Get a small cheep LCD in your project https://www.sudomod.com/forum/viewtopic.php?f=22&t=2312
Wrap it all round a battery https://www.sudomod.com/forum/viewtopic.php?f=13&t=2292
Or use a custom PCB to make it really small https://www.sudomod.com/forum/viewtopic.php?f=13&t=2512
or make it really really really really tiny!! https://www.sudomod.com/forum/viewtopic.php?f=13&t=2919
Wrap it all round a battery https://www.sudomod.com/forum/viewtopic.php?f=13&t=2292
Or use a custom PCB to make it really small https://www.sudomod.com/forum/viewtopic.php?f=13&t=2512
or make it really really really really tiny!! https://www.sudomod.com/forum/viewtopic.php?f=13&t=2919
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Re: [Guide] ili9341 SPI TFT Screen on Retropie
I was looking more closely to the PCB, seems as if the path towards SCL touches the RST pad.. made a small cut, now they are not shorted anymore. The TFT: https://nl.aliexpress.com/item/3-2-inch ... 79195.html
The one Ryzee used...
I first followed your guide for the small TFT, that one was working... I replaced it stepwise, each cable.... and rechecked.
The one Ryzee used...
I first followed your guide for the small TFT, that one was working... I replaced it stepwise, each cable.... and rechecked.
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Re: [Guide] ili9341 SPI TFT Screen on Retropie
Now it is working... strange, dit not change the connections..... cables are connected properly, but probably a bad solder connection... not used to this pitch
- moosepr
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Re: [Guide] ili9341 SPI TFT Screen on Retropie
Glad you have got it working! We need some pictures or video
It's strange you found a short, maybe a fault with the board? That was the first board I designed, so it's not really my best work. Maybe I should do an 18 pin remake?
It's strange you found a short, maybe a fault with the board? That was the first board I designed, so it's not really my best work. Maybe I should do an 18 pin remake?
Get a small cheep LCD in your project https://www.sudomod.com/forum/viewtopic.php?f=22&t=2312
Wrap it all round a battery https://www.sudomod.com/forum/viewtopic.php?f=13&t=2292
Or use a custom PCB to make it really small https://www.sudomod.com/forum/viewtopic.php?f=13&t=2512
or make it really really really really tiny!! https://www.sudomod.com/forum/viewtopic.php?f=13&t=2919
Wrap it all round a battery https://www.sudomod.com/forum/viewtopic.php?f=13&t=2292
Or use a custom PCB to make it really small https://www.sudomod.com/forum/viewtopic.php?f=13&t=2512
or make it really really really really tiny!! https://www.sudomod.com/forum/viewtopic.php?f=13&t=2919
- Holydohnut
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Re: [Guide] ili9341 SPI TFT Screen on Retropie
Don't say that, I just ordered 3!
My first GBZ
http://www.sudomod.com/forum/viewtopic.php?f=43&t=3475
My first MintyPi
http://www.sudomod.com/forum/viewtopic.php?f=32&t=3466
The PiddlyPi! My first self build
http://www.sudomod.com/forum/viewtopic.php?f=13&t=4171
Follow me on Instagram https://www.instagram.com/holydohnut/
http://www.sudomod.com/forum/viewtopic.php?f=43&t=3475
My first MintyPi
http://www.sudomod.com/forum/viewtopic.php?f=32&t=3466
The PiddlyPi! My first self build
http://www.sudomod.com/forum/viewtopic.php?f=13&t=4171
Follow me on Instagram https://www.instagram.com/holydohnut/
- moosepr
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Re: [Guide] ili9341 SPI TFT Screen on Retropie
Hahaha, mine worked ok, they are cheap enough, maybe check for shorts though
Get a small cheep LCD in your project https://www.sudomod.com/forum/viewtopic.php?f=22&t=2312
Wrap it all round a battery https://www.sudomod.com/forum/viewtopic.php?f=13&t=2292
Or use a custom PCB to make it really small https://www.sudomod.com/forum/viewtopic.php?f=13&t=2512
or make it really really really really tiny!! https://www.sudomod.com/forum/viewtopic.php?f=13&t=2919
Wrap it all round a battery https://www.sudomod.com/forum/viewtopic.php?f=13&t=2292
Or use a custom PCB to make it really small https://www.sudomod.com/forum/viewtopic.php?f=13&t=2512
or make it really really really really tiny!! https://www.sudomod.com/forum/viewtopic.php?f=13&t=2919
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