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I just found this, I think it's great that we finally get some parallel display support for teensy. I'm having troubles getting a display to work, I have a buy display NT35510 4 inch display, the one listed at the beginning of this thread. I have had this display working with the arduino GFX...

That’s an interesting way to do it, would love to hear more on how exactly that’s done. I am kinda in the same boat, porting the BuyDisplay code over to a dedicated library is a bit over my head. Hoping maybe someone with better coding skills might tackle it. I did try to just throw all the...

I looked more into the code example that does work; I cut selective snippets from the Arduino Due example sketch provided by BuyDisplay. https://www.buydisplay.com/arduino/Libraries-Examples_ER-TFTM050A2-3.zip The examples and libraries work fine right out of the box with an arduino DUE...

well, found a T3.2 here at work so i wired it up, same exact behavior, this is weird.....

Just tried the Skallwar version and got the exact same results... When i get home tonight ill try it on my T3.6 and see if there is any difference.

I just re-downloaded the GSL1680 library from the arduino site, and ran the example. Using a T4 and the 5 inch buy display screen. The issue with mine, only the bottom of the touch screen will register and report touch x and y. The x scales fine from 0-799, but the y only has a range of 1...

Edit, using a rom font is about 42 times slower than the default font. I’ve been playing around a bit with the ROM fonts, trying to figure out how to access the different character sets in the ROM. Not having a lot of luck, but it’s a minor issue at this point. Getting some pretty good...

That works great! thanks I also found this: tft.setFont(INTFONT); is shown in the external font ROM examples, but i cant seem to get that to work. Updating an xxx.xx number in _Crystal_48_Italic_ takes ~ 27600 microseconds with the T4 @ 600mhz Using the internal font is about 100 times faster...

So i found this in the library, RA8875 has 4 different font set, same shape but suitable for most languages please look at RA8875 datasheet and choose the correct one for your language! ISO_IEC_8859_1 (default), ISO_IEC_8859_2, ISO_IEC_8859_3, ISO_IEC_8859_4 The default one it's the most...

Wow, that’s pretty amazing, and exactly the performance I would like to get. I’ll need to research a bit on the virtual screen, this is the first time I’ve heard that term. I did look into using Layers ( I think that’s what it was ) a while back but I could never get it to work, I couldn’t...

Quick Question(s), I am starting a small sketch using this RA8875 library, and a T3.2. right now the sketch is fairly simple, i am reading 3 analog inputs ( A0-A2 ), averaging them, and printing them to the TFT ( 5 inch 800x480 unit from buyDisplay ). Playing around with the fonts, I am...

I hear you there! I have a few little board I made up for other displays, RA8875, IlI9486/9488. They sure help a lot, especially when using 16 bit parallel. I knew about the data sheet SPI bus setting, though I thought it was 40MHz not 30.... I played around with it a bit more last night...

That’s good advice. But I wonder how that might be done with a development board that has just a .100 header. Even if I were to roll my own board, and get the teensy SPI traces as short as possible to the ribbon connector, how would one accomplish this? The ribbon connector doesn’t appear to...

I started playing around with A T4 and the adafruit 2.8inch TFT with cap touch. I am running the scroll demo in the examples folder, as I intend to build a “hyper term” Like serial monitor that will also display other data about the incoming serial stream, having one port or of the screen...

I haven’t played with it yet but I am looking foreword to it. Big thanks for sharing not only this but the flicker free library. I have an RA8875 and a ili9431 I would like to try.

Thank you, I wasn’t very clear in that last post. The library Can be installed in the - hardware>teensy folder, where the teensy specific libraries get put when installing teensy loader, or I can install it in the “standard” libraries folder. I realize I have it in both places now, but I did...

Hello, after reading through most of this post, i thought i would give this library a shot. I have several ili9488 displays, some from buy display and others from e-bay. First i loaded the main library folder into the teensy specific library folder, then i tried the standard arduino...

Frank, thanks for the reply. I don’t know much about GSM, had to look it up just to make sure. I’m guessing that it would need cell (phone) coverage to work? If that’s the case, that won’t work as 50% of the time we are working where there is poor to no coverage. If not though, that might be a...

First things first, I am completely ignorant when it comes to wireless ( WiFi ) networks, I have a very loose grasp on terms like server, client, access point, etc. for the sake of this post, assume I’m a 5 year old. I have played around with Bluetooth modules, LoRa and Esp32 to some extent...

Hello, Ive been trying to learn as much as i can about these things, however im finding it all to easy to get confused. I am not a programmer, but i can usually cobble something up in arduino that works to some degree. I have started a new project, a tool for work that will basically be a...

Well, I tried a different approach using the BTE Function, my thought being, print value at 0,0 Then, when a new value comes in, copy that block at 0,0 move it down, . Took a bit to figure out the arguments, but not too bad. So I thought, I’ll copy a block that is the length of the text, and the...

No worries! You did not mislead, thank you for the help.

no luck, i did try replacing just the .H and .CPP files inside the RA_8875_t4 folder but get the same compiler error. I tried compiling it it the T3 as well and got the same error. _utility/RA8875Font.h: Im guessing that this /\ is missing from one the _t3_Terminal .H or .CPP files?

Just tried compiling with the _Terminal library, and gave me that error, ill keep working on it but this is where ill probably have to beg for some more help. Thanks guys

I will still give it a shot, however if that means digging through the .h and .cpp files to figure out what functions and arguments to make Im afraid my skill set will let me down. Same applies to modifying a library, Ill give it a go but im just not at that level Im afraid.

Please forgive the horrible grammar and spelling, on my phone, and my thumbs are fat, eyes are bad and auto correct hates me for some reason.

WWatson, thanks, I will give that a try, out to dinner at the moment. @kurt and mjs513, after posting that last bit of code, I tried a few different layer commands, either in the set up or out, nothing worked, but writing to layer 2 resulted in nothing showing up on the screen. Talking of...

interestingly, if i run the same code as above, but comment out the " tft.setScrollWindow(0, 799, 0, 479 );" to dissable scrolling, it has basically the same glitch. once the text hits the last "line" of the screen, in this case, with this font size, it would be the 16th line printed , there is...

try this: #include <SPI.h> #include <RA8875.h> #define RA8875_CS 10 //any digital pin #define RA8875_RESET 8//any pin or 255 to disable it! RA8875 tft = RA8875(RA8875_CS, RA8875_RESET); //Teensy uint32_t x = 1; int y = 0;// or just use tft.getFontHeigth uint32_t font_lines =...

mjs513, Thanks for that, It does seem to cure some of the issues. I am still getting those odd artifacts a blip or small screen shift at the top, seems to repeat at a constant interval. I would have never guessed that using a setCursor in the set up would hijack the scroll function, and i am...

I will try that when I get home this afternoon, thank you. I notice another forum member, his forum handle escapes me at the moment, has got scrolling working well, even with large fonts, on this display. He has been posting in the RA8875 thread I need to look close at his code but if I...

I really like the size, layout and the castellated pads, all good, I don't recall seeing a planned PCB thickness but hoping it will be .8 mm or less. this is a great idea and cant wait to see the final product.

Most everything ive tested looks and acts pretty much the same with the @mjs513 library, i just cut the old RA8875 lib out of the teensy libraries folder and put it on my desktop for now, so im assuming after re-starting arduino that ints using that file now . The code i posted earlier acts the...

I installed the library at https://github.com/mjs513/RA8875/tree/RA8875_t4 into my Teensy hardware folder, where the origional RA8875 library is, do i need to delete the original since the sketches still call out #include <RA8875.h> and not #include <RA8875_t4.h>?

I should add that i don't intend for it to scroll on forever, i will add limits on how many lines get scrolled before the counter "y" in this case, gets reset. the intended serial stream ( to be read and displayed ) has a packet terminating string, and the packets are usually less than or...

Ok, back at my computer for a few min. Teensy Loader 1.51 beta 1 Library RA8875 version=0.7.11 Ardiono version 1.8.12 Teensy4 #include <SPI.h> #include <RA8875.h> #define RA8875_CS 10 //any digital pin #define RA8875_RESET 8//any pin or 255 to disable it! RA8875 tft =...

Kurt, thanks for the quick response. As far as I know I am using the RA8875 library that was bundled in with teensyloader, I don’t remember the exact version at the moment but I will post that ASAP. IIRC, it’s been less that 4 months since I updated TL. I will get that info and post a bit of...

Hardware: buyDisplay 800x480 RA8875 tft And, at the moment a T4 running at 150Mhz. Using HW SPI for display and IIC for cap touch interface. I am in the early stages of getting a GUI up and running on this display and so far it’s been relatively pain free. I’ve got multiple screens or pegs...

I think this is a great idea and long overdue, I would buy them. If this ends up turning into a real board, I would think a teensy 3.2, 3.5/6 and an LC board would be a great idea also. A small, thin .8mm castellated teensy 3.2 / LC would be super handy for all kinds of things. Fist thing that...

Thanks KurtE I’ll give it a shot, I did try setting the clock back to 30000000 but no luck there either. I’m not too worried about it, I have 3 more T4s and just added another to my oshpark order yesterday. Thanks

I have 2 displays, first thing I did was swap out a known good one, no go. Both displays work fine on my t3.2 board, so pretty sure one or more of the SPI pins 13-12 or 11 got damaged somehow, as I tried alternate pins for the DC, CS and reset.

My results with DC=10 and CS=9 My results after updating teensyduino and the ILI9341_t3n library. Also able to duplicate the results on the scroll test mentioned earier. Bad news, appear to have damaged the SPI port on my T4, After letting it run all night, before the updates, the screen was...

Been looking for some teensy related info for awhile now and not turning up much, so I thought I would just ask, couple of questions. I am wanting to use the cheep, pretty nice looking 3.5 inch 480x320 ILI9488 display from buyDisplay with a teensy 3.x, possibly the LC. These displays offer a...

Thanks guys, I will update my teensy loader, I did find one interesting thing, Running the same scroll test code, with the timing reports, I went ahead and swapped the DC and CS pins to match the call outs in the graphics test, where DC = 10 and CS = 9. I was surprised to see an improvement...

Got the graphics test working, I didn't notice the DC and CS pins are swapped in the example code, so that is working again.

I cant seem to reproduce your results using a T4, I am running the code you posted, and when i use the default : in the ILI9341_T3n .H file I get ~1014 ms for the timer results, When i increase the ILI9341_SPICLOCK to 60000000u, it does improve to 715 ms for each timing result, however i cant...

#elif F_CPU == 144000000 // config divisors: 144 MHz core, 48 MHz bus, 28.8 MHz flash, USB = 144 / 3 SIM_CLKDIV1 = SIM_CLKDIV1_OUTDIV1(0) | SIM_CLKDIV1_OUTDIV2(0) | SIM_CLKDIV1_OUTDIV4(4); //SIM_CLKDIV1_OUTDIV2(0) war auf 2!! SIM_CLKDIV2 = SIM_CLKDIV2_USBDIV(2); Added that line to my set...

Wow, thanks for the explanation and help. I haven’t dug into the code enough yet, and usually only really understand about 25% of most of this stuff anyway. I did not realize that it was reading, then writing the entire screen ( I’m assuming that’s basically what’s going on ) . Thanks for the...

Quick question, I just started playing with this library today. I’m using the adafruit 320-240 display, ili9341 obviously. Have it up and running with a teensy3.2 @ 120Mhz . What caught my eye was the vertical scrolling example. It is essentially exactly what I need for a project I’ve been...

Jason, thanks for your advice. What you propose is pretty much what I was thinking. To answer a couple of your questions. It is an 8 cylinder engine ( a typical V8 ). I have no idea what the relationship is between the indexing tooth of the trigger wheel and the position of the cylinders...