# 320x256 pixel panel possible **URL:** \ **Category:** Uncategorized\ **Created:** [August 28, 2024, 12:44pm UTC](https://rpi-rgb-led-matrix.discourse.group/t/320x256-pixel-panel-possible/864 "2024-08-28T12:44:47Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![Bluescreen2001](https://avatars.discourse-cdn.com/v4/letter/b/839c29/32.png) [@Bluescreen2001](https://rpi-rgb-led-matrix.discourse.group/u/Bluescreen2001)\ **Post date:** [August 28, 2024, 12:44pm UTC](https://rpi-rgb-led-matrix.discourse.group/t/320x256-pixel-panel-possible/864/1 "2024-08-28T12:44:47Z")
Hi, I want to create a giant display from 5x4 64x64 panels (320x256 pixels) to play retro computer emulators on it or stream video from somewhere to the Raspi. I see some problems here: 1. is the Raspi fast enough to get flickerfree display (I think 15 bit color is enough) with low latency so really playing retro games on it is feasable 2. I cannot have four chains on a standard Raspberry and on Compute module I have no Ethernet. Is it possible to create 2 chains with 7 panels and 1 chain with 6 panels to build a 5x4 panel matrix somehow. 3. Alternatively it possible to have four chains on a standard Raspi using output registers (like 74hct374) instead of bus drivers? I think you can drastically reduce pin count that way. I would construct a hardware for that then. If this is a possible solution, would it be better to use 3x 8 bit registers to get the 24 data lines needed for four chains (18 GPIOs needed) or is it better to use 2x16 bit registers. Then we have free 8 bits we can use for ABCDE, OE and STROBE. Then we will need 16+2+1 = 19 GPIOs. ---
**Author:** ![lonesometraveler](https://avatars.discourse-cdn.com/v4/letter/l/3ec8ea/32.png) [@lonesometraveler](https://rpi-rgb-led-matrix.discourse.group/u/lonesometraveler)\ **Post date:** [August 30, 2024, 8:24pm UTC](https://rpi-rgb-led-matrix.discourse.group/t/320x256-pixel-panel-possible/864/2 "2024-08-30T20:24:35Z")
Wouldn’t it be possible to create a 320x256 display using two chains of ten 64x64 panels? You could use the [U-mapper](https://github.com/hzeller/rpi-rgb-led-matrix/tree/master/examples-api-use#remapping-coordinates) for this. I recently built a 320x196 display with three chains of twenty 32x32 panels and streamed a video to it. The Pi 4 handled it with no issues. ---
**Author:** ![Bluescreen2001](https://avatars.discourse-cdn.com/v4/letter/b/839c29/32.png) [@Bluescreen2001](https://rpi-rgb-led-matrix.discourse.group/u/Bluescreen2001)\ **Post date:** [August 30, 2024, 8:37pm UTC](https://rpi-rgb-led-matrix.discourse.group/t/320x256-pixel-panel-possible/864/3 "2024-08-30T20:37:58Z")
I never thought a chain of ten modules ist possible, because you have to increase pixelclock everytime. 10 modules mean about 100MHz pixelclock, I think. Is that possible with these long cables? I will try it, once my modules arrive. ---
**Author:** ![raspberry.pi.maker](https://yyz2.discourse-cdn.com/free1/user_avatar/rpi-rgb-led-matrix.discourse.group/raspberry.pi.maker/32/138_2.png) [@raspberry.pi.maker](https://rpi-rgb-led-matrix.discourse.group/u/raspberry.pi.maker)\ **Post date:** [September 10, 2024, 4:53am UTC](https://rpi-rgb-led-matrix.discourse.group/t/320x256-pixel-panel-possible/864/4 "2024-09-10T04:53:00Z")
I made 384x512 size pannel. > [@I made 384X512 pixel size LED display using Hzeller's library](https://rpi-rgb-led-matrix.discourse.group/t/i-made-384x512-pixel-size-led-display-using-hzellers-library/292): > > I used 3X 8 P2.5 (64X128) pannels to make 384X512 pixel size LED display. My blog [https://iot-for-maker.blogspot.com/](https://iot-for-maker.blogspot.com/) explains the detailed creation method and process. And the source code is also uploaded to github. The white line in the picture is invisible to the real human eye. I used 5 Rpi. One for streamming server, 4 for LED display. Each LED player controls 6 LED panels( P2.5 64X128) using 3 hub75 chains. So each channel controls 2 panels. LED signage installed on cafe window back… ---
**Author:** ![marcmerlin](https://yyz2.discourse-cdn.com/free1/user_avatar/rpi-rgb-led-matrix.discourse.group/marcmerlin/32/40_2.png) [@marcmerlin](https://rpi-rgb-led-matrix.discourse.group/u/marcmerlin)\ **Post date:** [November 9, 2024, 7:09pm UTC](https://rpi-rgb-led-matrix.discourse.group/t/320x256-pixel-panel-possible/864/5 "2024-11-09T19:09:49Z")
yes, I built 384x256 in 2020: [Marc's Blog: arduino - RGB Panels, from 192x80, to 384x192, to 384x256 and maybe not much beyond](https://marc.merlins.org/perso/arduino/post_2020-03-13_RGB-Panels_-from-192x80_-to-384x192_-to-384x256-and-maybe-not-much-beyond.html) ---
**Author:** ![marcmerlin](https://yyz2.discourse-cdn.com/free1/user_avatar/rpi-rgb-led-matrix.discourse.group/marcmerlin/32/40_2.png) [@marcmerlin](https://rpi-rgb-led-matrix.discourse.group/u/marcmerlin)\ **Post date:** [November 9, 2024, 7:10pm UTC](https://rpi-rgb-led-matrix.discourse.group/t/320x256-pixel-panel-possible/864/6 "2024-11-09T19:10:35Z")
[![](https://global.discourse-cdn.com/free1/uploads/rpi_rgb_led_matrix/original/1X/5f20c9a9c92c3de2320a6a1cc5e3a461d32ecffd.jpeg "TME69 Plasma on top of FastLED\_RPIRGBPanel\_GFX and ArduinoOnPc-FastLED-GFX-LEDMatrix") ](https://www.youtube.com/watch?v=85PI2C6oBsQ)