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Forum Index : Microcontroller and PC projects : 4" SPI LCD module...
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Grogster Admin Group  Joined: 31/12/2012 Location: New ZealandPosts: 9534 |
Has anyone seen or used one of these? LINK... They do them in sizes up to 4", and it is the 4" one I am interested in. I note it seems to use compatible controller chips - ILI9341 or ST7796, the latter of which, I don't think is supported, but the ILI9341 most certainly is. I am only interested in these for a larger display of simple text. I don't care if the capacitive-touch is supported or not. Smoke makes things work. When the smoke gets out, it stops! |
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| dddns Guru  Joined: 20/09/2024 Location: GermanyPosts: 412 |
Hello Grogster, this is about the ST7796 in which I asked this but no answer..I don't know The controller is not "S" but ST7796U Edited 2025-05-29 15:01 by dddns |
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| dddns Guru Joined: 20/09/2024 Location: GermanyPosts: 412 |
This Waveshare I like the most but don't know if its (fully) supported.. This is mentioned in the manual If your focus is size then these are nice Good chance that it will work but of cause vague Edited 2025-05-29 15:39 by dddns |
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| Grogster Admin Group Joined: 31/12/2012 Location: New ZealandPosts: 9534 |
That thread you linked to about the 7796S is perfect - forget this display, I will read that other thread and get one of those in, cos I know it is now supported. Thanks very much.   Smoke makes things work. When the smoke gets out, it stops! |
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| dddns Guru Joined: 20/09/2024 Location: GermanyPosts: 412 |
You're welcome :) As I played around much with displays I can only say and emphasize that the viewing angle of the cheap TFTs is so poor, that I think its almost a waste of money. I don't have too much fun with them at least.. And I replied because I thought you've chosen this because of IPS (in your link) Edited 2025-05-29 16:31 by dddns |
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stanleyella Guru Joined: 25/06/2022 Location: United KingdomPosts: 2455 |
if composite video works then https://de.aliexpress.com/item/1005007103966834.html?src=google&pdp_npi=4%40dis%21GBP%212.85%212.85%21%21%21%21%21%40%2112000039414617854%21ppc%21%21%21&src=google&albch=shopping&acnt=494-037-6276&isdl=y&slnk=&plac=&mtctp=&albbt=Google_7_shopping&aff_platform=google&aff_short_key=UneMJZVf&gclsrc=aw.ds&albagn=888888&ds_e_adid=&ds_e_matchtype=&ds_e_device=c&ds_e_network=x&ds_e_product_group_id=&ds_e_product_id=en1005007103966834&ds_e_product_merchant_id=5353606338&ds_e_product_country=GB&ds_e_product_language=en&ds_e_product_channel=online&ds_e_product_store_id=&ds_url_v=2&albcp=17859500389&albag=&isSmbAutoCall=false&needSmbHouyi=false&gad_source=1&gad_campaignid=17190468917&gclid=CjwKCAjwi-DBBhA5EiwAXOHsGXNTg89vQeDcq6-JoNDkk9c9t32WJ0L9erWRMxq4zv0i4k-qxgm9WxoCZu8QAvD_BwE&gatewayAdapt=glo2deu |
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phil99 Guru Joined: 11/02/2018 Location: AustraliaPosts: 2482 |
In theory B&W composite video could be possible on a Pico but colour composite is very difficult to do on any general purpose micro controller and way beyond a Pico. A VGA or HDMI to composite converter between the Pico and the monitor is needed for that. |
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| stanleyella Guru Joined: 25/06/2022 Location: United KingdomPosts: 2455 |
Hi phil99 I got a hdmi to 3 phonos but no composite video on my car video...I don't have a car but the point was they are cheaper than a lcd and no compatibility problems with mmb I use a 8" with hdmi,vga and comp vid...if that works. it was £14 but you pay more for hdmi,vga. |
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