On the latest version of my TeensyMIDIPolySynth project, simply selecting "Smallest Code" optimization (initially selected because code was exceeding available space) also reduced the RAM usage on my T4.1 . . . you...
Here's a <link to the thread> where EEPROM writes were previously not working for T4. You might try the test program from that thread on your LC to see if it helps to reproduce the problem easily, just in case the...
Jonathan:
I would think that one obvious approach would be to add another dimension to the envs array (logical), rather than just mutiplying the number of envs (very confusing !!) when transitioning from one...
@ALDad:
Posting your modified sketch (see Forum Rule above) would make it much easier for anyone else to analyze why it might not be working as you expect.
So, without benefit of the modified sketch, I'll propose...
@nobody3: Do you know if the CP750 is expecting CR, LF, or CR/LF at the end of the serial stream ?? Which these different options for line termination have you tried ??
Mark J Culross
KD5RXT
The two added wires are +5VDC & GND directly between the PowerBoost 1000C & the display (as indicated in my earlier post, this was an attempt to rule out the very thin traces on the PCB, jut in case they were inducing...
For the RPi (& most other linux devices), simply typing "ifconfig" without the quotes in a terminal window will show you lots of network interface information (if you get a "not found" error, try "/sbin/ifconfig"...
If I understand your question correctly, the short answer is as follows:
IPAddress ip( );
IPAddress myDns( );
IPAddress gateway( );
IPAddress subnet( );
If you have another device (e.g. PC) on the same...
Kurt:
Thank you . . . all great suggestions. I am moving the modules (Teensy, Audio Adapter, PowerBoost 100C, & RA8875 display) between the wired prototype & the PCB (both boards are socketed). I have also tried my...
Kurt:
Thank you for your reply. When I started this effort to transition from the ILI9341 to a larger display, I read the detailed thread from when the RA8875 library was being optimized for the Teensy with much...
It's been awhile since I've done much of anything with the Teensy & ethernet (too busy playing with my TeensyMIDIPolySynth synthesizer !!), but <here's> a reference that shows how to read the MAC address which is...
From the NativeEthernet example "AdvancedChatServer":
#include <SPI.h>
#include <NativeEthernet.h>
// Enter a MAC address and IP address for your controller below.
// The IP address will be dependent on your...
@Bastiaan:
I would suggest a major simplification. Note that I am not somewhere where I can actually test this on a Teensy, so this is all "conceptual" off the top of my head. Normally, I don't think it is really...
@Muiota:
That's exactly the tone sound that I was getting in my updated TeensyMIDIPolySynth. The fix that Frank B pointed out in P#21 (included in Teensyduino 1.54b7) successfully fixed the problem that I was...
Again, did you *remove* all other *hardware* connections ?? Just "unassigning pins" is a *software* function & does not remove any potential *hardware* conflicts.
Please understand that I'm not yelling, just wanting...
@djex81:
The third parameter that you are passing into the MIDI_CREATE_INSTANCE(HardwareSerial, Serial1, MIDI) macro specifies & holds the return of your default MIDI object name, which can subsequently be referenced...
Includes for the different devices:
#include <USBHost_t36.h>
#include <MIDI.h>
Declaring the different devices (I threw the hub in there just in case I decided to connect a USB hub on the USBhost port . . . I...
I think the short answer is yes. Other than declaring the use of the specific devices (usb, usbhost, midi) & making calls using the specific device names , all else should be the same. Let me get to my other computer...
@DeMoeP:
Did you try connecting *only* the Teensy & the Audio Adapter together - with absolutely no other hardware ?? Running the WaveFilePlayer code with that simple setup would be a useful test. Any additional...
@blakeAlbion:
I am not familiar with the specific piece of equipment that you called out (Waldorf Blofeld), but maybe if I describe how portions of my updated TeensyMIDIPolySynth have been confirmed to work, it might...
@CoreyCoop:
My evidence is only circumstantial, but after adding the fix to startup.c manually (to remedy freezes on the latest version of my TeensyMIDIPolySynth that I'm tinkering with), I have not seen any...
You did not show your wiring, but from your code, Im going to assume that you have the 5 buttons wired to pins 0-4 & the 5 LEDs wired to pins 5-9.
I did not load your sketch into a Teensy, nor did I attempt to...
@Iain:
The change that I suggested is not specific either to Teensy, nor to USB MIDI. The switch statement (as originally written) uses the current value of the "state" variable to decide what to send (NOTE that...
Iain:
Welcome to the forum !! One quick way to make it so that your sketch only sends the CC message when a button press is detected would be to add the following lines (highlighted in RED):
const int buttonPin =...
I am not familiar with that particular adafruit product, but is appears to be a battery charger only . . . it does not provide a regulated DC output for powering devices like the Powerboost 1000C. Based upon your...
Good for a chuckle . . . but still probably better than "passive breaking" or even "inactive breaking"!!
Mark J Culross
KD5RXT
P.S. Paul: sorry for polluting this thread !! MJC
On the <Audio Adapter> page, under the first picture, it says "Two of these 14x1 pins can be used to easily soolder the Teensy 3.x and audio board together."
@Jeroen:
The Teensy 4.0 is not 5V tolerant, so running the display from a higher voltage than the Teensy runs the real risk of damage to the Teensy. Much better to run both from the same supply, whatever you choose....
In case anyone in the future stumbles across my earlier question & is having the same problem, the solution to getting the resistive touchscreen to work just like the capacitive touchscreen did for me was very simple: ...
@Jeroen:
If it works for your project, I would recommend that you look into the Adafruit <2500 mAh battery>+ Adafruit <Powerboost 1000>. With this combo, the updated version of my <TeensyMIDIPolySynth> project...
@Maes2ro:
I have not created any actual projects with the Ethernet stuff yet (it's on my "playlist", but has not quite bubbled to the top), but my quick read seems to concur that you have to add that function to your...
@M4ngu:
If I am understanding correctly what you are after, here's a short sketch to demonstrate an approach that I believe matches what you are needing. You will create an array containing the addresses of your...
Ahsan:
As Frank B said, a brand new Teensy is setup as a RAWHID device (no serial port), so you will need to program it the very first time using the button. It isn't clear from your description of "(pressed the...
Yes, USBHost_t36 works very well on a Teensy 4.1. I have used it in the original version of my TeensyMIDIPolySynth (hardware pots, switches, pushbuttons, & LEDs), as well as in the enhanced version that I am currently...
How much delay did you have to add ?? Maybe you could try just reading one switch each time thru the loop & use millis() instead of delay() to tell you when it is time to read the next switch. Use a variable that...
I can confirm that the freeze in my updated TeensyMIDIPolySynth (both the full version & the pared down version) no longer occurs after making Frank B's code change (as posted/clarified by defragster) !!
Thanks &...
UdoZ / WMXZ / Frank B / Paul:
I have also been seeing a "temporary freeze" in the current version of my TeensyMIDIPolySynth that I have mostly converted from hardware control (pots / switches / pushbuttons / LEDs) to...
@KurtE:
Thanks again for your continued testing. I finally found time for my own further testing (by combining my small test program with the simple code in some of the RA8875 Examples), & in doing so, I have...
@KurtE:
Thanks for your reply !! I should have noted that I'm running Arduino 1.8.13 + Teensyduino 1.54-b7 under Win10pro 64-bit. The RA8875 library is in "C:\Program Files...
I'm working on an enhancement to my TeensyMIDIPolySynth which now uses the RA8875 TFT (ER-TFTM070-5) for the all-digital (no more pots / switches / buttons / LEDs !!) user interface. I am having very good luck with the...
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