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Hmm, not sure what I am doing wrong... When doing peak.available() or fft.available() its always returning 0 :( #include <Audio.h> #include <Wire.h> #include <SPI.h> #include <SD.h> #include <SerialFlash.h> // GUItool: begin automatically generated code AudioPlaySdWav playWav1...

@paul, what do you think is the state of the audio shield when those pins measure 1.4V and 3.3V ?

Okay, yes i see the time for fill-screen on 480x320 is ~100000us = 0.1s = 10fps on other demos. Thanks for your reply. It looks like the HX8357_t3n library is on par with the esp32 ones. Optimizations to achieve 60fps has to be done in how the screen is updated/drawn.

Doing a test with teensy and a 480x320 tft I was able to achieve a max fps of just 10 when clearing all pixels each loop. This is running HX8357_t3n which KurtE confirmed is about the max fps for that display. I am seeing demos online of esp32 + TFT_eSPI achieving 60fps for 480x320, and even...

Thanks! Those libs are cool, but still a ways to go, and not specifically relevant for my project given I am not using VGA in any way... Guess this project will be a bit more difficult than I thought. Maybe there will one day be an amazing Teensy Graphics lib in the same way there is the...

Hello, I am having difficulty finding a graphics library for Teensy4 that handles such things as animated sprites, collisions, lines, shapes, fill, text, and optimizations to be rendered to a TFT over SPI. I found a great one for ESP32 http://www.fabglib.org/ that does just what I am looking...

It's working well now. Added a 2.5W amplifier to the line out. And most importantly, hooked up an AGC microphone module, which eliminated all the noise.

Ah yes okay I will connect the line to some amplification and try again. I tried headphones. Any reason why I could not hear anything through headphones? Is there a way in the code to specify line-out versus headphones? Or is it always outputting to both? thanks.

Hello, This is my very first test with the Teensy Audio Library so probably just make a basic error. Simply, can't hear any playback from the recording in the Recorder Example. I have tested audio both out of the headphones and the Line Out with a 0.5W speaker. All the buttons seem to be...

This would be great, yes, thank you. It sounds quite advanced for me but I would love to see the code and teensy-audio-gui layout (if you have it) I also found this: https://youtu.be/Is2dHl0MkUs which has some nice use of teensy memory for freeze/delay.

Hello, I have spent quite a bit of time reading at the audio-design tool for teensy as well as looking at the examples but truthfully I don't have much intuition around what would sound good. Tomash, built a pretty rad filter/delay pedal with this approach...

@vjmuzik rad. If you could share your code, that would be massively helpful :)

Paul's encoder library on Teensy works extremely well, yes! I am working on a project and need additional i/o for encoders. I am curious if there is an i/o expander for encoders that can work just as well? I would like to add 16 additional encoders. I have used i/o expanders for pushbuttons...

Hey gang! So I am considering building a audio sample/manipulate/jam (SAMAJA?) type instrument with the Teensy3.5 + Audio Adapter. You can think of the instrument as a crude mashup between the volca sample and the op1 and the electribe 2. But obviously much much much simpler than those. The...

Paul do you mind just posting the Arduino code you are using and I will test it on my end? This way we can see if it is my SD card or my BMP file.

Sorry my bad. I didnt have the code configured right. Good news, it is running at ~500ms. Let's be ambitious and try for 100ms. Initializing SD card...OK! Loading image 'm0.bmp' File size: 230456 Image Offset: 54 Header size: 40 Bit Depth: 24 Image size: 240x320 Loaded in 524 ms Seek: 6589...

Paul, Unfortunately still taking > 1s: Loading image 'm0.bmp' File size: 230456 Image Offset: 54 Header size: 40 Bit Depth: 24 Image size: 240x320 Loaded in 1047 ms And also now drawing a completely glitched out BMP. I haven't tackled the 8bit code, but might have to. Of course I will...

Niiiiice! That is certainly an improvement. Any thoughts on that 8bit BMP goodness?

Okay. That's fine. Because 8bit BMP files will be exactly 1/3 the size of 24bit. So using my math skills, we should be able to get it down to ~230ms ??? Playing with the buffer didn't help at all?

Oh I will definitely run a performance test and compare your 8bit with adafruits 24bit. no problem!

I did find http://home.comcast.net/~elmoi/bmpvu.c from WINDOWS '98! Paul I am gonna boldly request you bless us with your genius and write a c file that can ready 8bit BMP files :] Then finally these LCDs will be of use to designers and not crippled by this 1FPS performance.

I tried the adafruit ILI9341 library and it takes about 1000ms for a 320x240 (~320kb) BMP to be drawn. I then tried Paul's optimized library (https://github.com/PaulStoffregen/ILI9341_t3) and it takes about 800ms for the same BMP to be drawn. Nice! Is there any way we can enable 8bit BMP files...

I also just tried with the Teensy optimized SD library paul wrote. improvement. now it works if you power on/off. reset on teensy results in the same issue. but i think with a hard power off-on i should be good to go.

Hey Paul. I just tried it. Unfortunately no luck.

oh right -- code! https://github.com/adafruit/Adafruit_ILI9341/blob/master/examples/spitftbitmap/spitftbitmap.ino tested on arduino uno with the same code without any issues. but have to use Teensy for this project for geometric reasons.

I am using Teensy3.0 with an adafruit LCD (https://learn.adafruit.com/adafruit-2-4-color-tft-touchscreen-breakout/bitmaps-spi-mode). Everything is working reasonably well and I am able to display BMP files. BUT. It only works the first time I insert the micro SD card. If I restart the Teensy or...

Hey gang. After discovering http://www.pjrc.com/teensy/gui/ and begining to understand some of the audio potential of Teensy3, I am keen to start experiemnting with a Teensy Synth. Can someone recommend a good way to simulate the sounds, or learn more about synthesis, in a way that will help...

It's been a while. Really hoping this can get resolved soon. Need this for TeensyMonster, which is launching very soon.

Here is a video I made to (maybe) help resolve this problems. If you have any idea what is causing these inconsistencies, or any idea why 10.6.8 is causing my Teensy boards to become dysfunctional - please let me know. Thanks again. ~Fuzzy

I just started using my Teensy3 today for touchRead()... I will update you if I determine exactly what induces this goofiness...

10.6.8 Plugged directly in. I dont have a hub.

The problem keeps occurring, forcing me to restart...

Yep, I am using a mac!

Restarted my computer, everything went back to normal. Teensy3 is working fine now. Oldest trick in the book.

Paul, just wondering if you have any idea what is going on? (Arduino 1.0.5, Teensyduino, Teensy3) Here is the trend. Teensy3 is not visible in serial port. I click upload, it asks me to reset the board. I reset, Teensy3 is now (magically) visible in serial port. I proceed to upload...

I did a quick test. Both Teensy2++'s have 0.3V across them when plugged into USB. The Teensy2 has 5.0V (as expected). These boards seem fried. But for no reason. All I was doing was uploading code and had nothing plugged into them at the time. Yikes, how did this happen...

I am having some bad luck. I have 3 Teensy boards here, all of which have worked well in the past. I am trying to upload code to two of the Teensy2++ boards with no luck. They do not show up in the Arduino serial port. No idea why. THe just stopped showing up. The third board I have is a...

More weirdness... I switched from a pointer to an array. Now even stranger stuff is happening... When only the first pin is interrupt enabled, everything works as expected #include <Encoder.h> //ONLY FIRST PIN IS INT ENABLED Encoder e0(18,35); Encoder e1(19,34); Encoder myEncoders[] =...

I have code that I run in USB serial mode (for debug), and USB MIDI mode as a controller. Every time I toggle between modes I have to comment/uncomment all the 'usbMIDI.' messages otherwise an error is thrown: usbMIDI was not declared in this scope Is there a workaround for this? To prevent...

First off, thanks for this awesome encoder library. Writing encoder-code from scratch is a total pain. I tried once, and failed terribly. I having some unexpected behavior when using the Encoder as a pointer. I am using Teensy2++ with Arduino0022 Everything works fine if both pins are...