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There's a whole bunch of considerations. I'm curious, which server are you running?

Is it possible to retrieve and display the usage of ram1 and ram2 in the Serial Monitor? In order to determine the optimal number of sockets. Thanks.

That mixing of signed/unsigned should be triggering a compiler warning - wonder if there are lots of other warnings?

The easiest way, if you're using the Arduino IDE, is to change the LWIP_NUM_TCP_PCB value in the lwipopts.h file. For PlatformIO users, and for those Arduino IDE users that know how to change command-line flags, you can also set this macro value...

TTL is simply in the product name, but is not relevant to the question. @Rezo is correct in his reference to one example product. Looking for good existing libraries that might embed a FlexIO implementation under a common graphics library, or a...

I 'm trouble-shooting an issue with writing to SD using SdFat, and I noticed the code below in SdioCard::begin(SdioConfig sdioConfig). A signed int is used, which I think can cause CARD_ERROR_ACMD41 to be incorrectly returned, depending on the...

I ordered 3954 and 1611 from Adafruit.

After you install any of these libraries, click File > Examples and scroll down the long list to look for your freshly installed library's examples. Some of these libraries give multiple ways to access the hardware. You want "hardware SPI"...

You can find libraries in Arduino IDE, like this:

But what has TTL got to do with it? This is just a 16/18 bit parallel interface as far as I can figure out.

Hi everyone! I am creating a custom PCB and incorporating a significant chunk of the Teensy 4.1 layout. I came across some beta stage routing diagrams for all the layers at some point, but am unable to find the page again. Can anyone paste a...

If you search “GitHub mcp23s17 teensy”, you will find some libraries. Here is one. https://github.com/tonton81/MCP23S17

I had got one mcp23s17,but it hard for me to drive it using SPI on teensy 4.0,can anyone give me some examples? thanks very much!

Installed on W11 machine. Did a couple quick compiles, MMOD tft viewer with ILI9341_t3n is working

Hi all, yes it's been a little bit. So I guess I lost my Teensy 4's, lol, so I'l order a 4 and 4.1 soon.

Just installed on win 11 home edition with 2.2.2-nightly-20231021, path for package: https://www.pjrc.com/teensy/package_teensy_index.json. Installation went smoothly and quickly. Tool teensy:teensy-compile@11.3.1 already installed Tool...

Here is a fourth beta test for Teensyduino 1.59. Arduino 2.0.x, all systems platforms: use Boards Manager to install Teensy version 0.59.4 (to refresh versions, Shift-Ctrl-P and click "Arduino: Update Package Index") Arduino 1.8.x, Linux 32...

yes thats what im using, connected to the JST socket and teensy 3v for its power the samples im using in the sketch, and some build images are here: https://www.dropbox.com/scl/fo/jwpgmfc1oixp94589pzdw/h?rlkey=hbdkrdd6wt8n1l64de2l8yko1&dl=0

Thank you MarkT for the reply. :-) I found the Examples yesterday. :-)

Hello all, I am using "QNEthernet" for the Teensy 4.1 and have a web server running on it with Ajax and JS. Now there seems to be a maximum of 8 sockets set, in which header file can you adjust this and what would be the maximum fetch bare...

Hello Luis. I’m currently using 11 outputs on a board I made for 14 outputs.. I’m not sure if I chose that number because of a hardware limit but I’m pretty sure 14 will work. I only use 300 leds per strip however for what it’s worth I just...

For the PCB, Adafruit Product ID 3954, and the Silicone elastomer 4x4 button keypad Product ID 1611. A couple of strategically placed elastic bands can be used to to strap the two parts together for experimentation. If you want to play with 8x8...

Hi all, yes it's been a little bit. So I guess I lost my Teensy 4's, lol, so I'l order a 4 and 4.1 soon.

Hi all, yes it's been a little bit. So I guess I lost my Teensy 4's, lol, so I'l order a 4 and 4.1 soon.

Since it's relevant, I wanted to reference the post I just made in another thread about Teensy4.1,OctoWS28,Artnet+FastLED using the above-mentioned libraries and blog posts... I'm hoping my consolidated repo helps a few people here :) The...

Using Teensy 4.1, OctoWS28 and the Ethernet connector, I could do 24 universes at a good quality. I throttled the Art-net server and FastLED Teensy node down to 30fps, which worked well for my project. There seems to be a bunch of discussions...

If I were to order parts to try reproducing this problem, which specific items from Adafruit do I need to buy?

I tried running older IDE versions. Looks like ZST works all the way back to IDE 2.0.4, at least on Linux. Assuming Windows and MacOS are the same. Looks like IDE 2.0.3 is the point where we lose compatibility with "extracting archive: Not a...

Fixed. https://github.com/PaulStoffregen/cores/commit/4d2b1660736b9e468a8175aeec04ca7efe39440a https://github.com/PaulStoffregen/SPI/commit/52f8402bb62c56a0d5fabea20c056f584a703c9a

Is NeoTrellis connected only by I2C? May be slow, but only I2C should not mess up the audio. Very mysterious...

Quick followup to this old thread. For the next version of Teensyduino, I'm adding a check for the installed location if running on Windows. If Teensyduino appears to in a pathname installed by Boards Manager, but Arduino IDE doesn't give...

The Arduino docs for the map function say it is implemented like this: long map(long x, long in_min, long in_max, long out_min, long out_max) { return (x - in_min) * (out_max - out_min) / (in_max - in_min) + out_min; } You could define your...

The Neotrellis library code is blocking and depending on what you may be trying to do, painfully slow and is probably the culprit messing up audio. My Midi controller project has an ILI9341 screen, 18 encoders and two hardware buttons wired to a...

The server hosting these files also has a 1 Gbit connection to the internet.

https://www.adafruit.com/product/5792 I think he is referring to this.. You can emulate and RGB dot-clk interface using FlexIO shifters and timers - but I have never done it myself - I’ve only emulated 8080 on FlexIO for display purposes

Thank you for your reply! That is very helpful. is this correct? or is there a better way to do it? it seems to work. int lfoAmount = analogRead(potAmplitudePin); float lfoAmplitudeMapped = map(lfoAmount, 0, 1023, 0, 100)...

At its simplest clone the relevant repository to a local repo of yours, create your change branch, create a pull-request, and start a thread about it...

So long as both sides of the comparison are cast to the same signed or unsigned type it should work, but unsigned is preferred.

File > Examples > then search for the "Custom Library" ones...

TTL?

Sounds like a job for DMA driven SAI unit perhaps.

You may not be able to achieve a 5-MHz interrupt rate, and if you do, you'll have little or no time for other I/O or calculations. I think you need to look for a different approach.

float lfoAmplitudeMapped = map(lfoAmount, 0, 1023, 0, 1); The map function only uses integers and returns an integer so the only possible values that this can return are zero or one. Similarly, in this one float lfoSpeedMapped = map(lfoSpeed...

Hi, thank you very much... it was to easy... :)

M1 Mac Mini. Comcast internet: 937Mbits down, 11.3MBits up. (probably maxing Gbit switch and ethernet) Arduino IDE 2.2.1 MacOS Sonoma 14.1.2 Installing TD 1.58.1 COMP min:sec bz2: 0:18 0:18 zst: 0:09 0:03 0:03 xz...

pixels.show(); Sends data to 2 WS2812 LEDs above my footswitches trellis.pixels.show(); Sends data to the neotrellis board I appreciate any suggestions Paul, although i have already tried removing all the neopixel code from the sketch

Oh and for reference, the unison 1-4 voices aren't connected and are for a future feature that I want to add. What I want, is to be able to push a button, and have it switch between poly mode (default), and a unison mode with detune.

Hello! I have been working on a synthesizer with the Teensy Audio Library on a Teensy 4.1. It is working pretty well so far, but there are a few issues that I can't seem to resolve on my own. Issues- Potentiometer readings - So I have two pots...

On every interrupt call I want to transfer binary data (bit by bit)to a gpio pin. Let's say 1011, it means Pin high for 200ns Pin low for 200ns Pin high for 200ns Pin high for 200ns Why use interrupts? Because I have to perform some calculations...

Can you say more about what you mean by "data transfer", and why do you want to do this with timers and interrupts?