In general, if you go over to https://www.pjrc.com/teensy/td_libs.html, it has all of the pages for documentation about the Teensy libraries.
From there, go to the SPI page,...
I'm sure there are many different enclosures. I typically don't worry about 'fancy' enclosures.
One that I've used in the past is the Altoids tin. You can get a regular Altoids tin (eat the mints in it first), or...
To amplify what PaulS said, on the Teensy 3.x microprocessors, you can choose two sets of pins for the 3 SPI pins:
Pin 11 or pin 7 for DIN/MOSI;
Pin 12 or pin 8 for DOUT/MISO; (and)
Pin 13 or pin 14 for...
Cute. Though I'm having trouble thinking that a soldering iron would be made where the tip can't stand the temps. produced. But you never know these days. :)
Thanks. Yes, I don't have solder paste or a heat gun that isn't that directional. I'll maybe play with it, but as I said, I did recently pick up some more Teensy LC's. Fortunately, you can still get Teensy LC's (at...
My problem is with the USB header on place, there is no way to touch the tabs with the iron since the usb header is sitting on top of it. With PSrams and such, I can still see the top of the chip's feet and touch the...
I was doing a neopixel suspender for a local steampunk event, and I did a quick job to solder some wires to the Teensy LC (Vin, the pin 17 level shifted, and ground). Afterward the show, I noticed the micro USB-B...
The Adafruit ItsyBitsy headers are great. Though connecting VUSB might be an issue.
However, I find the Sparkfun stacking headers for the Teensy 3.2/4.0 to be less useful. The ItsyBitsy headers are 2 14-pin headers...
Unless you are using really old Arduino shields, I believe the modern shields are now capable of running at 3.3v as well as 5v. Of course individual devices may still be 5v only, but again, I suspect anything recent...
I assume you know about them, but in case you don't, Adafruit's ItsyBitsy processor has the same form factor as the Teensy LC/3.2/4.0 (other than the pins inside of the Teensy):
Short female header:...
Note, I'm a software guy, so possibly I'm off track in terms of physical characteristics of electricity....
I could imagine that one way to do it is carefully cut heat shrink tubing so it has holes at the solder...
In terms of pin assignment and such, I have made the following spreadsheet that attempts to document the pin changes between the various ARM Teensies. I also wrote a higher level summary in the unofficial Teensy twiki...
To the OP, note except for the basic devices (Serial1, I2C1, SPI1), things may be on different pins. So, if you have made PCB's, you may need to revisit the PCB and layout.
It is problematical. The Teensy 4.0/4.1 does not have a DAC pin like the Teensy 3.2/3.5/3.6/LC microprocessors had. This means you can't just hook up the DAC pin to the prop shield and have it work.
Now, the Teensy...
If you want to use hardware SPI, then you do need to use the hardware SPI pins for MISO, MOSI, and SCLK. The CS pins can typically be any pin. There are some hardware optimizations if you use the special CS pins, but...
You might want to post your code exactly and mention what version of teensy dunio you are using. If you are using Teensy Dunio 1.56, it should just work, assuming you use BUILTIN_SDCARD for the SD card CS pin instead...
I assumed you knew about the audio shield, and you couldn't use it either due to cost or it interfered with something on your board.
Be sure to watch (and rewatch) this video on the audio adapter. Note, this was...
Mjs513 posted an article I did a few years ago. I haven't done much in the last few years due to covid lockdowns and my own health issues, and such.
But some other things that might be useful. If you aren't using...
Note, the Teensy 2 and Teensy 2++ are completely different processors (ATmega 32u4 if memory serves) than the ARM based Teensy LC, 3.x, and 4.x processors. Hopefully it will work straight out of the box, but it might...
There are various prototype boards that bring out the pins to positions you can use with a prototype board. Mostly, these are for getting access to the underneath pins of many of the boards. However, for just 5 pins...
If you are in Massachusetts, the Micro Center in Cambridge currently has 2 Teensy LC's and 2 Teensy 4.0's. I don't recall if You-do-it carries Teensys any more (they used to). FWIW, I'm in Ayer.
On the back of the Teensy LC pinout card (https://www.pjrc.com/teensy/pinout.html), it lists which pins can be attached to interrupts. IIRC, on the later Teensys, all pins capable of doing digital input can be an...
I've not used RTS/CTS, particularly with Teensy 4.0/4.1, but the Teensy library section on Serial UART devices has a description on what CTS/RTS pins can be used:
https://www.pjrc.com/teensy/td_uart.html
...
I am a computer programmer that has worked on compilers for over 33 years. I have been working on the GNU GCC compiler for over 20. Outside of work, I tend to be known for my steampunk camera (see http://www.steampunkmike.org for more details).
Location:
Ayer Massachussetts
Interests:
digital photography, steampunk, renaissance faires, hobby electronics
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