Are you using the SD card reader on the Teensy 4.1 or the SD card reader on the Audio board. The tutorial is set up to use the SD card reader on the Audio board. If you want to use the SD card reader on the Teensy, in...
BTW, I suspect there may be a new version of the eyes code shortly. Adafruit has released the following new products (plus some more displays pre-announced):
Qualia ESP32-S3 for TTL RGB-666 Displays:...
Perhaps somebody else has come up with other eyes. I didn't see any other things referring to Uncanny Eyes over at the Adafruit Learning pages, but maybe do a query over at the Adafurit forum. There are 4 main strains...
Those are the only patterns I have. They came with the original Uncanny Eyes source at Adafruit.
The Uncanny Eyes page at the Adafruit Learning guides has a page about doing custom eyes:
...
If you can go slightly wider, you might look at the Teensy micromod, which is a Teensy 4.1 with M.2 hookup instead of using through hole pins that Sparcfun sells. Now, at first glance, the carrier boards that they have...
Yes, look at my thread on it. Chris.nz converted the Adafruit code for the M4 processors (Monster M4SK and Hallowing M4) to Teensy 4.x for PlatformIO. They/he/she/it added multiple eye support and support for the...
I would imagine you would need an amplifier for the speaker, much like you need to do on the Teensy 3.x machines that have a real DAC port. You can buy speakers that include the amplifier such as Adafruit's Stemma...
This is one of those 'it depends' answers.
If want to blast the lights at 100%, then you will need 1.8 amps to power 30 lights. Each RGB led consumes about 0.020 amps maximum, and there are 3 or 4 LEDs within an...
While it isn't a Teensy, and you would have to completely redo your pinout, you might want to look at the Adafruit ItstyBitsy line. It has one pin that has the level shifter built-in, and the M0/M4 versions have 2 DAC...
Note, they've added more information:
Though a Teensy 4.1 with 8 megabyte PSram should be able to hold two eyes.
And Adafruit added an even bigger 720x720 4" display:
https://www.adafruit.com/product/5793
I hadn't seen the 480x480 eyes before, but it looks nice, particularly with touch support.
Lets see, if you need to keep the whole bitmap in memory, that is 112K bytes (480 * 480 * 2). A Teensy 4.x could hold two...
I just noticed that Adafruit is coming out with a new round display that has 480x480 pixels. They don't list the chipset used, but it is supposed to be similar to the good old ST7735:
...
Do note, that the main reason for eliminating the Teensies is the chip manufacturer is discontinuing the chips used making the Teensy LC, 3.2, 3.5, and 3.6. If PJRC can't buy the chips, they can't make the Teensies. ...
Three years ago, I put an updated version of transfertool in my web site:
http://www.the-meissners.org/tmp/2020-04-27-teensytransfer.zip
I haven't used in quite some time, so perhaps it might not build with the...
Well it will be sad to officially have the last 3.5 and 3.6 boards sold and gone. And then as you mention on the Teensy 3.2 product page (https://www.pjrc.com/store/teensy32.html), you are expecting one last shipment...
A couple of issues with WS2812B's, assuming the ground issue is not the real problem (or things that may bite you further down the road).
As others have mentioned, there are versions of the chips that are sensitive...
In this particular case, I believe the issue is the language changed. In earlier versions of ISO C++, you could use 0 wherever a pointer was expected, and it converted it into the appropriate NULL pointer (and '\0' is...
Note you don't have to learn the ins and outs of learning to read from the micro SD card, as there is a library that already does it. You have to change the declarations to match the hardware you are using.
Note, I...
You need to change the various declarations from using a DAC/prop shield on the Teensy 3.2 to using I2S and micro-SD on the Teensy 4.0. If you know the Teensy interfaces, it is probably straight forward, but if you...
I glanced at the tutorial, and it uses the prop shield for audio output and flash memory. As I said, the Teensy 4.1 doesn't support audio (*) to the prop shield. That leaves the flash memory. There is a way to use...
I'm wondering what you need the prop shield for? IIRC, the prop shield as 4 features:
The prop shield has mono audio output, but you can't use it by default on the Teensy 4.0/4.1 (and you bought I2S boards, so you...
I have several uncanny Eyes setups;
Teensy 3.5 using the original uncanny Eyes with SSD1351 (OLED 128x128);
Teensy 3.2 using the original uncanny Eyes with ST7735 (TFT 128x128);
I think I've tried Teensy 4.0 or...
It also depends on what you want to do.
If you want to play pre-recorded sounds from a micro-SD card, the board you list will work fine, particularly if you want to connect a single speaker (since the board contains...
I think I've tried it in the past with the T4.x, but I'll check back later when I have more time. In my various configurations, I see I have to reduce the SPI frequency because the OLED displays I have from Adafruit...
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