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I did not really think, that you would jump onto this idea using "weird" Forth here. :-)

(( I have discovered, that if I use a simple way of local variables in Forth and if I use normal structured...

...thinking of it...

I could indeed contribute to the idea or a variation of it myself: If pjrc would want to ship T4.1 with a preloaded Forth as a bonus for every customer, which would just...

@Frank, no problem! Best regards from Esslingen. I just was not too happy, because I think the idea is not completely silly and because it takes some time for me to write - especially in English.
...

Thank you both for the explanations.
The idea was: To ship the T4.1 with the SD-Bootloader already flashed to every customer.
For myself I can flash the Teensy and I can load an application written...

Well, Frank, you answered negative within 4 Minutes to my idea, saying that there is no need for it, this felt to me like "crushed down". Have you been part of a group doing brainstorming in the...

Start the Teensyloader. - Up to now I have installed Arduino first and then Teensy with all its compiler and libraries. Ok, I found now, that there is indeed a "Loader-Only-Installation." Good to...

Hi,
at the moment I have a project, which is of some interest for people, who are not familiar with programming, but do some electronics. T3.5 or now T4.1 is used and a SD card is used too.
...

Thank you very much, Frank, this works.
(Although I don't feel very comfortable, when I write to a register and don't have any idea, what I am doing there... :-) )

Hi,
there are some threads about software restart, but I could not see, which will lead to an easy way to just do it with T3.5/3.6/4.1 using Arduino IDE.
I just need a function which will restart...

Hi,
Thank you very much for all the replies!
Gives me input to think.
The signal of an electric guitar has a very wide range of voltages. The amplitude can be up to perhaps 1V. And if you want to...

Hi, I am thinking about something and would be glad to hear some input about it.

I have done some project which uses teensy 3.6 together with the audio board for guitar effects.
It turns out,...

Hi,
As you have written, these are simple functions. I think it might be easier not to use a microcontroller at all.
You can buy blink diodes.

The Transistors have to be able to handle the...

Whow, did not know, that the Hardware fifo is 64bytes. In former times these have been only 2 bytes. Wanted even to suggest an extra dedicated teensy to handle this. Rts cts? There seems a lot going...

Hi,
Can you reduce the baud rate?
Perhaps it might help to draw a timing diagram for all the tasks that have to be done.

Hi,
Perhaps a noise gate might be helpful.
https://forum.pjrc.com/threads/56917-Controlling-Analog-Guitar-Efects-with-Teensy-Hybrid-Multi-Fx?p=210093#post210093

Hi,
I do not think, that the amount of information provided is sufficient to give an answer.

Hi,
Have you already tried more damping?
For the sake of speed, this library works only with 16 bits, so yes the resolution is limited. I would assume, that some clipping is a good compromise...

Hi,
The question was: How could you control Guitar Effects using a controller. Of course this makes even more sense, if you can combine the analog effects with the digital audio capabilities of...

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Hi, perhaps this works?
Best regards Christof

Hi,
having the same problems, I just wanted to thank timo42 for the input:
The delays solved the problem!
"delayMicroseconds(1); // CS_n falling to first capture clock: >= 1 us"

:-) Christof

Hi tschrama,

thanks for the replies! Linear sweep would be very easy to implement.

As the sample frequency is 250kHz, you could go well over 20kHz. This high frequency signal would not look...

Hi,
this might perhaps be interesting for some guys working on audio projects.

It is a testtone-generator which can do logarithmic frequency sweeps. If you have a 2-channel oscilloscope, then the...

Hi,
Thanks to pjrc and the guys who have made all the libraries. I just want to say, that the clock works completely stable for some months now 7/24.
😊 Christof

... tried to correct orientation of the image....

Making a Cockoo-Clock with teensy.

Hi, perhaps this is an idea for a project of some other people. At least I had some fun with it…

A cockoo clock is a clock hanging at a wall. It has a small...

Hi, and thanks again.
your input helped to modify an existing library:
https://forum.pjrc.com/threads/53122-DCF77-and-module-Which-library-is-working

This actually works with "attachInterrupt()...

Hi,
I managed to solve the question:
At
http://thijs.elenbaas.net/2012/04/arduino-dcf77-radio-clock-receiver-library/
is a description of his library, which is also on:...

Thank you very much, Paul and manitou, for your inputs! I will try the attachinterrupt and micros() approach first and see if this works good enough for this project.
Christof

Hi,
According to the data sheet it must be possible to create the following:
Set up a timer to capture mode at rising and falling edges of an input. (Goal is to measure pulse length.) And to have...

OK, this is working and can decode the hours and minutes:

// Funktioniert mit Teensy 3.6
int DCF77_pin = 2;
#define DCF77_POWER 28 // PIN to switch on the module
int DCFSplitTime =...

OK, now I found
http://muck-solutions.com/?page_id=1637

I can compile the following code and I get a blinking LED with 1 Hz (as far as I can see):

#include <DCF77.h>
//#include <Time.h> //...

Hi, has anyone managed to synchronise time on Teensy 3.6 with a module DCF77?

I am using a module from pollin and I am able to get some signal from the module with this very basic test program:
...

Hi,
the given audio modules and the graphical tool are great!!!

1. A suggestion: Include some User Module blocks into the gui tool. UserA, UserB, UserC.... Each of these blocks should have...

Hi,
is this "AudioSampleSnare.h" in the same folder as your *.ino?
Best regards, Christof

Hi blackaddr,
yes, perhaps I will post the code, when I am somewhat more happy with the result. I was still fighting with a user interface. It consists of a potentiometer, used like a joystick, a...

Thanks for the answers!
Now I had some time to simply try the differential input and it does not help.
I had thought, that there was perhaps a path for the noise over the power lines to the adc....

Hm,Paul,at least I don't understand, why this should help here. I thought, that this would help against 50 or 100 Hz hum.
Best regards, Christof

Hi,
using the 16 bit audio shield and having some noise trouble. For example a serial line to a serial lcd can be heard.

Now I wonder if it would make sense for example to couple the second line...

Sorry, better to do it quick and dirty instead of not doing it at all....

I am not familiar with the dsp-instructions of this CPU M4 so I cannot do it better quickly.
:-) Christof

Thank you for the inputs!
Sometimes one only needs to know the right words to google. "Recursive 1st order filter" was helpful! I found:...

Hi,
perhaps this is interesting for anybody.

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It is a guitar-amp Simulation-work in progress. It can be used to Play electric guitar together with a headphone or hifi stereo amplifier....

Hi,
to use this object for a guitar input signal it makes sense to bring in some hysteresis. The level to Switch on has to be higher than the Level to switch off.
My very simple modification:

...

Hi,
at the Moment I use:

biquad1.setHighpass(0, p_value[1], 0.707); // Butterworth filter, 12 db/octave

Is there a way to get less than 12 db/octave? I would be grateful for some link with...

Hi, Theremingenieur,

ok, I was able to include the noisegate object into my Project and I was able to modify it a little bit. :-) It seems to be the most simple object.

The graphical tool is...

Hi, may I ask for a pull request to include this great object into the official library?
Best regards,
Christof

Hi,
the given audio modules and the graphical tool are great!!!

Nevertheless 3 questions:
1. Is there something like a tutorial how to build a first user defined Audio module? It would be very...