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Forum Index : Microcontroller and PC projects : New 4 inch LCD
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| Bleep Guru  Joined: 09/01/2022 Location: United KingdomPosts: 411 |
I'm hoping that this display will be usable with the ILI9488 driver on Picimite? 4" 480x320 LCD using ILI9488 chip It claims to use the same chip & is same resolution so in theory it will work, not sure about the touch though? |
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palcal Guru Joined: 12/10/2011 Location: AustraliaPosts: 1801 |
I'll find out one day I just bought one. "It is better to be ignorant and ask a stupid question than to be plain Stupid and not ask at all" |
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stanleyella Guru Joined: 25/06/2022 Location: United KingdomPosts: 1643 |
the link said £3.xx now says £23.xx other ad shows it £7.xx |
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Mixtel90 Guru Joined: 05/10/2019 Location: United KingdomPosts: 5727 |
The link says £45.37 for the touch version here. Remember that on AE the price is shown without taxes and shipping though. Sometimes you have to spend £8 to get stuff in less than a month too!. Mick Zilog Inside! nascom.info for Nascom & Gemini Preliminary MMBasic docs & my PCB designs |
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| stanleyella Guru Joined: 25/06/2022 Location: United KingdomPosts: 1643 |
other ad from original link https://www.aliexpress.com/item/1005006262797500.html? |
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| lizby Guru Joined: 17/05/2016 Location: United StatesPosts: 3015 |
For me, the link in the first post shows $12.76USD without touch, and $13.89 with--both including shipping. Why would the UK price be so high? PicoMite, Armmite F4, SensorKits, MMBasic Hardware, Games, etc. on fruitoftheshed |
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phil99 Guru Joined: 11/02/2018 Location: AustraliaPosts: 1783 |
I suspect the price you are seeing is the "First Time Discount" from that seller. When I clicked that link the price was $AU 12.xx for the touch version but jumped to $AU 21.27 + 10% tax when I logged in. Presumably I have bought from them before. |
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bigmik Guru Joined: 20/06/2011 Location: AustraliaPosts: 2870 |
Hi Bleep, AndrewG and I have been using these as our preferred LCD for well over 6 months now. They are exceptionally good. BTW the price shown for me is $19.54AU Regards, Mick. Mick's uMite Stuff can be found >>> HERE (Kindly hosted by Dontronics) <<< |
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| palcal Guru Joined: 12/10/2011 Location: AustraliaPosts: 1801 |
Mine cost A$23. Free postage Edited 2024-03-15 14:23 by palcal "It is better to be ignorant and ask a stupid question than to be plain Stupid and not ask at all" |
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| Pluto Guru Joined: 09/06/2017 Location: FinlandPosts: 329 |
Ordered one yesterday. From the hint by Bleep on top of this thread. €16:50 incl VAT and postage. Good to hear that Mick has been satisfied. |
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| Mixtel90 Guru Joined: 05/10/2019 Location: United KingdomPosts: 5727 |
LOL! I was bog-eyed and thick-fingeredlast night.... The Price was (and still is) £4.37 for the touch version here. Mick Zilog Inside! nascom.info for Nascom & Gemini Preliminary MMBasic docs & my PCB designs |
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| Bleep Guru Joined: 09/01/2022 Location: United KingdomPosts: 411 |
Hi, Aliexpress must almost make up the price on the fly! Every time I go there my price, without touch is £9.56, or £10.43 with touch, free delivery, but 20%VAT is added at checkout, so £12.48 for a touch version delivered, supposedly 7 day delivry! Yes I've ordered one to try. :-) Regards Kevin Edited 2024-03-15 20:22 by Bleep |
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| Bleep Guru Joined: 09/01/2022 Location: United KingdomPosts: 411 |
Mick, the big one, Does this screen still need the resistor diode mod to get it working properly, can someone point me to a definitive version of how to connect up this mod, a simple circuit diagram showing resistor & diode & what pins to connect to will be fine. Regards Kevin. |
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| matherp Guru Joined: 11/12/2012 Location: United KingdomPosts: 8582 |
Thing to remember about the ili9488. 1. They are slow 2. You need an extra resistor and diode to get reliable reading 3. They are slow 4. They are too big for both a framebuffer and a layer buffer to fit in memory 5. They are slow Reasons: The ILI9488 controller has a bug where it doesn't tri-state MISO properly hence 2 The ILI9488 does not support 16-bit RGB565 over SPI so all writes and all reads are 3 bytes per pixel The ILI9488 needs a much slower clock for reading pixels than any other display They only support H/W scrolling in portrait mode so use for a console is terrible. It takes about 1 second to scroll a line of text up the screen They have 2x the pixels of an ILI9341 and need 3 bytes per pixel vs 2 so things like CLS take 3x longer than on an ILI9341 Wiring mod  Edited 2024-03-15 20:45 by matherp |
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| Bleep Guru Joined: 09/01/2022 Location: United KingdomPosts: 411 |
Hi Peter, I realise they are slow, :-( I want to use one as a console on a Picomite USB I like the 340x480 space, but it appears this is the only display of that resolution that can be used as a console, now that the 9481 is disabled, it looks like scrolling is very slow, but page up/down not too bsd, so I'll have to train myself to mainly use that. Thank you for the photo of the mod, that looks very simple. Regards Kevin. |
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| lizby Guru Joined: 17/05/2016 Location: United StatesPosts: 3015 |
Is there any more suitable 480x320 SPI LCD which is supported (or could be)? I'm with bleep--if there's nothing better (of the SPI type), the ILI9488 is satisfactory. PicoMite, Armmite F4, SensorKits, MMBasic Hardware, Games, etc. on fruitoftheshed |
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| stanleyella Guru Joined: 25/06/2022 Location: United KingdomPosts: 1643 |
Kevin, don't want to digress but these 7 inch displays I paid £12.50 for. Sold as car reversing monitor. got hdmi, vga and composite video... not avi as advertised- no audio- no speakers. says 5V to 24V supply but need 2A 5V. 12V 1A ok vga 640x480 and pico is readable and scrolls as vga does. uses little space. use with a small usb keyboard makes a small system.. no touch screen or sd card slot though. just a suggestion. stan  |
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| matherp Guru Joined: 11/12/2012 Location: United KingdomPosts: 8582 |
If you want a console and can spare the pins then the 4.3" SSD1963 is the way to go e.g. Quick video to upset those trying to use the ILI9488 as a console here NB: this is in 8-bit parallel 24-bit colour mode rather than 16-bit RG565 which paints the screen 3x faster Edited 2024-03-16 01:45 by matherp |
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| Bleep Guru Joined: 09/01/2022 Location: United KingdomPosts: 411 |
Ok thanks Peter, it looks like I'll have to try to build one of your 1963 parallel USB boards, or find a nice small bare VGA display to use with a VGA USB board. Regards Kevin. |
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| stanleyella Guru Joined: 25/06/2022 Location: United KingdomPosts: 1643 |
these vga displays are take to bits able but why. the base is standard tripod mount. small case border  |
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