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Forum Index : Microcontroller and PC projects : SD card on TFT displays
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bigmik![]() Guru ![]() Joined: 20/06/2011 Location: AustraliaPosts: 2950 |
Mick's uMite Stuff can be found >>> HERE (Kindly hosted by Dontronics) <<< |
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bigmik![]() Guru ![]() Joined: 20/06/2011 Location: AustraliaPosts: 2950 |
Gday All, I am designing a small Pi-Pico backPack board on 50mm square format for, primarily, my own purposes as due to the price of the pi-pico and it’s availability both being better than an MX170 chip itself it seems the best direction for me to go down. I am wondering why no one seems to use the SD card that’s on the 14 pin SPI TFTs that are out there. All the signals seem to be there on a 4 pin header so it would take less real estate to run a 4way cable to the TFT instead of adding a socket on the daughter board. Am I missing something here? Is it a bad idea for some reason? Is there a compelling reason to have the SD socket on the daughter board? Kind Regards, Mick Mick's uMite Stuff can be found >>> HERE (Kindly hosted by Dontronics) <<< |
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Mixtel90![]() Guru ![]() Joined: 05/10/2019 Location: United KingdomPosts: 7937 |
I've used one on one of the ILI9341 displays. Easy enough to use, but they put series resistors on the signal lines. I had problems getting a PicoMite to work with some SD cards until I shorted those out. Otherwise they are fine. I had to solder my own 4-pin header on though - it's not included. I think the main problem with the display SD card sockets is that they are in a bit of an awkward place. Not much use if you want to mount the display behind a panel. Mick Zilog Inside! nascom.info for Nascom & Gemini Preliminary MMBasic docs & my PCB designs |
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Kabron![]() Regular Member ![]() Joined: 30/11/2017 Location: GermanyPosts: 65 |
I do use it. Sometimes some manipulations with resistors in signal paths required(delete/lower/increase). |
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TassyJim![]() Guru ![]() Joined: 07/08/2011 Location: AustraliaPosts: 6283 |
My ILI9341 SDcard works flawlessly VK7JH MMedit |
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bigmik![]() Guru ![]() Joined: 20/06/2011 Location: AustraliaPosts: 2950 |
Thanks All, My TFT seems to have no resistors but I will recheck that. Thank you all, Regards, Mick Mick's uMite Stuff can be found >>> HERE (Kindly hosted by Dontronics) <<< |
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