Are you able to get anything on the screen? What type of screen is it? Matt.
On Wednesday, August 17, 2022 at 4:24:19 PM UTC-4 [email protected] wrote: > Hi Rob and Matt > > Hoi Rob. I knew wat you wrote to format data for a screen of ssd1306. I > did not send my program because I have no problem with my program. In the > beginning I wrote that I dont know how to get the data from the sd and sent > it to screen. > In the samples of Matt I see the possebility of byte by byte or a buffer > of a whole segment of 512 byte. > And then sending it serial. But I want to send it to the screen and I > don't know how to do this. > Must I send it byte for byte or buffer for buffer. So my question is: what > is the code to get the data from the sd and on the screen. > Greetings Peter > Op woensdag 17 augustus 2022 om 18:57:30 UTC+2 schreef [email protected]: > >> Hi Matt, Peter, >> >> Last year I updated some graphics libraries and added a draw image >> function. I also created some sample files and I did convert some jpeg >> images to something that can be displayed.I did this for the Nokia 5110 >> and for the SSD1306 display. I added the info on how I created the data >> from the jpeg file to a format that the display understands to the sample >> files. Below a copy of that from the sample file of the SSD1306: >> >> -- Notes: A way to generate the image array from a png or jpg file: >> -- *) Go to: http://javl.github.io/image2cpp/ >> -- *) Upload your png of jpg file >> -- *) Canvas size: 128 x 64 or smaller, depending on your >> application >> -- *) Background color: Black >> -- *) Invert image colors: Yes (tick) >> -- *) Scaling: scale to fit, keep proportions >> -- *) Brightness: 128 or higher (what suits you best) >> -- *) Code output format must be: Plain bytes >> -- *) Draw mode must be: Vertical - 1 bit per pixel >> >> So the picture data was in this case stored in program memory and showed >> on the display. >> >> @peter. As Matt requested, can you send your program? >> >> Thanks. >> >> Kind regards, >> >> Rob >> >> ------------------------------ >> *Van:* [email protected] <[email protected]> namens Matthew >> Schinkel <[email protected]> >> *Verzonden:* woensdag 17 augustus 2022 02:47 >> *Aan:* jallib <[email protected]> >> *Onderwerp:* Re: [jallib] SD card >> >> Hi, please post your program so we can see what you have so far. >> >> Does the sd card have fat32 on it? >> What type of picture format is on the sd card? >> >> I don't think anyone here has tried putting a .BMG .PNG or .JPG picture >> onto an lcd. If that is what your trying to do, you would have to >> understand the picture format. You may need to make your own picture format >> that can be easily put on the LCD. >> >> Are you able to read and write to the sd card with jal? >> >> Are you able to do basic things on the LCD like put a pixel, or draw a >> line? >> >> In glcd_common.jal there is a function called glcd_draw_image(), but I >> don't know if your code can use that. >> >> Thanks, >> Matt. >> >> On Tuesday, August 16, 2022 at 5:32:04 PM UTC-4 [email protected] wrote: >> >> Hi Rob >> Yes. The oled 1306 shows the picture with the data in the program. >> Yes I can read and write to the SD card. >> Yes I want to copy the data from the SD card instead of using data in the >> program. >> I will use the same oled 1306. >> Greetings >> Peter >> Op dinsdag 16 augustus 2022 om 18:51:47 UTC+2 schreef [email protected]: >> >> Hoi Peter, >> >> As to undestand your question better. >> >> The oled is capable of showing a picture from data in the PIC. >> >> So you have a PIC with an SD card and you can read the data from the SD >> card, right? >> >> And you want to copy that data to the Oled display. Which display is that? >> >> Can you give some more info? >> >> Thanks. >> >> Kind regards, >> >> Rob >> >> >> >> ------------------------------ >> *Van:* [email protected] <[email protected]> namens Zet Weeh >> <[email protected]> >> *Verzonden:* dinsdag 16 augustus 2022 15:50 >> *Aan:* jallib <[email protected]> >> *Onderwerp:* [jallib] SD card >> >> Hi >> Who can help me. >> I have a picture on an oled. The data is in the jal-file. >> I have a sd card working and I want to use it for the data of the picture. >> How can I use the data on the sd card to get the picture on the oled? >> I tried it making a buffer but I don't get it working. >> Greetings, >> Peter >> >> -- >> You received this message because you are subscribed to the Google Groups >> "jallib" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/jallib/9e53d353-dd52-44e1-9aa8-a87950953d91n%40googlegroups.com >> >> <https://groups.google.com/d/msgid/jallib/9e53d353-dd52-44e1-9aa8-a87950953d91n%40googlegroups.com?utm_medium=email&utm_source=footer> >> . >> >> -- >> You received this message because you are subscribed to the Google Groups >> "jallib" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/jallib/604859cb-fd42-45e7-961f-9094a7eb7ce0n%40googlegroups.com >> >> <https://groups.google.com/d/msgid/jallib/604859cb-fd42-45e7-961f-9094a7eb7ce0n%40googlegroups.com?utm_medium=email&utm_source=footer> >> . >> > -- You received this message because you are subscribed to the Google Groups "jallib" group. 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