Linked Questions

1
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1answer
13k views

Wiring up a ILI9341 TFT Screen + Touch

I've bought a ILI9341 TFT LCD Screen + Touch to my Raspberry pi. The screen is the MI0283QT-9A "TFT PROTO", from Mikroeletronika. Here is the link to the producer's page. It has an ILI9341 chipset, ...
2
votes
2answers
4k views

How to check if SPI is enabled and functional on Raspi 3b+?

I have run raspi-config and enabled SPI and also verified that /boot/config.txt contains the line: dtparam=spi=on However, when I run lsmod | grep spi I get the following: spidev ...
1
vote
2answers
3k views

Is 0.96 inch display (ST7735S) working with raspberry pi?

I'm not able to find any documentation. Is 0.96 inch display (ST7735S) working with Raspberry Pi? I would like some advice on how to connect the pins. Thank you for help.
1
vote
1answer
2k views

Raspberry Pi 4 Installed screen drivers but disabled my hdmi

I bought a touchscreen and installed the drivers for it, but now my hdmi doesn't work. I am currently running Raspbian on Raspberry Pi 4 model B.And I have a 3.5 inch tft screen.I do not no what ...
1
vote
1answer
3k views

HDMI + GPIO Dual Screen

I am running Raspbian 4.19.34 with HDMI monitor (FullHD). I bought 5" LCD which connects to Raspberry using GPIO pins (by rpi rgb lcd and vga board). I am trying to get it to work like 2 screens. ...
1
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2answers
2k views

I want to use spi0 and spi1

I try to use my RPi3 and the RC522 and a touchscreen display as well so i need to put my RC522 on the auxiliary SPI1 right ? How can I do it ?
0
votes
1answer
1k views

Unable to open device /dev/spi

I'm trying to communicate with a 128x64 screen on SPI (GFX-hat pimori). It seems that the device /dev/spi* does not exist, I looked at how to do it on the net, but the device refuses to be created. ...
2
votes
2answers
516 views

HELP, undo code that was for another touch LCD screen. Now it won't boot all the way

How can I undo the sudo code that was run with the wrong type of LCD "...-show" The system boots to a certain point and then just does not continue. Ive tried mounting the micro sd and see if I can ...
1
vote
1answer
758 views

Why is SPI not working on any of my Raspis?

I tried it on both Raspi 3 and 2 using the SpiDev python library. I've never even seen any kind of output on MOSI or CS lines with my oscilloscope. Controlling an SH1106 OLED display via the luma....
1
vote
1answer
940 views

Connect touch screen 3.5" LCD and MCP3008 at the same time

Reposting this question asked by someone else a few years ago because it was unanswered and I am facing the same problem. I want to use a touchscreen LCD (3.5" TFT) and a MPC3008 ADC at the same time ...
1
vote
1answer
705 views

raspberry pi with 4x20 lcd and pi4j; display something

Ive connected the lcd to the pi, setup raspbian, and powered the device (3B+) on. The display displays 4 lines, line 1 and 3 are sort of darked out, what seems to be indicating working hardware. I ...
-2
votes
2answers
1k views

SPI driver for communication

I want to load my kernel module which communicates with my device over spi interface. I have tried loading my modules but it's showing spidev is already installed. I see 2 modules named spidev and ...
1
vote
0answers
731 views

Is There Support for 8-bit/4-bit parallel i/o bus (8080 or 6800) for LCD drivers?

I'm looking at using a 240x128 LCD with a UC1608 chip. Are there any packages that support parallel i/o with it? The UC1608 has support industry standard 3-wire, 4-wire serial bus (S9, S8, S8uc) and ...
0
votes
2answers
558 views

Troubleshooting: RPi 4B & ILI9341 display

I bought a generic 2.8" TFT LCD 240x320 Serial SPI Display that uses the ILI9341 driver. I cannot seem to make it work with my RPi 4B. Does anyone have an idea as to why? Or ideas to further ...
3
votes
1answer
327 views

High level of noise of SPI pins on RPi Zero W

I have a zero W powered via USB from a laptop. I have setup up for the SPI drivers and run a very simple test program which is: import spidev import time spi = spidev.SpiDev() spi.open(0, 0) ...

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