Please excuse newbie to Arduinos and programming. I have been working on this project for over a year and have been stuck on the FTP portion for over 6 months. The overall project is an audio recorder that stores...
Hello
I am interested in using teensy boards in my MIDI controller projects.
I need loads of inputs for internal interrupts, and when I say loads I mean loads (300)
I was wondering if it is possible to network...
Hello teensy friends
I programmed a midi dump function for my Synthesizer with Teensy 4.1. Transmission errors occur when I send Patch Bank data to the PC via usbMIDI.sendSysEx. The data packet is 128 * 348 bytes...
Hi all,
I have Teensy 4.1 and ADS1256. I am not strong in ADS1256 so I have questions for more experinced colleagues what I need:
1) Reading 30kSPS
2) Timing is very important = 1 sample every 1/30000 seconds (one...
I have a copy of Atari 7800 "Ballblazer," which contains a Pokey sound chip. If I desolder it from the board, is there any way to "use" it (for playing music) via a Teensy 4 or 4.1? I also have a teensy audio board...
I'm attempting to come up with an electronic lead screw for my lathe using a Teensy 4.1. So I am working out some of the critical pieces. My code only implements one case at a time, and there is no way to change...
This is all done on a Teensy 3.6.
I replicated a program in Kinetis Peripheral Module Quick Reference, dated May, 2014, from NXP / freescale, specifically "4.1.3.1.1 Code example and explanation" on pdf. 44.
I had...
I have an application where a Teensy 4.1 pin is used as an input. The input is a dry input (no voltage) where the pin is pulled to ground.
pinMode(loop1, INPUT_PULLUP);
However, I am concerned that someone...
I have two Teensys 4.1 and both are powered using the same 5V source. They communicate together via RX/TX/GND.
Main Teensy has a 128x32 OLED display connected to 3.3V and two Sparksfun loadcell amplifiers also...
Hi,
I am looking for an eagle download of the Teensey 4.1 Schematic as well as versions of the cpu and supporting chips in SMD size. After buying an SMD Hot Air station to fix some broken PCB's, I wish to design a...
I have a working ohmmeter. I have teensy 4.0 or 4.1 unconnected. I connect the - input of my ohmmeter to the teensy ground, and the + input of my ohmmeter to the teensy 3.3v line (either of the 3.3v on Teensy 4.1...
Hi,
I have a Teensy 4.1 that writes to exFAT card. Using the Jan 2022 Teensyduino which I believe the most recent. It's for a datalogger. I want two log files. I write to the files by appending to them in loop(),...
I started using a new teensy 3.2 for some code that references EEPROM data. The code works on another older 3.2. In trying to debug the code I extracted the part of the larger program to only include the problem area....
Hello Everyone,
I have connected the MicroSD to the Teensy 4.0 .
When I try to compile any Micro SD example I get:
'error: 'BUILTIN_SDCARD' was not declared in this scope'
if I try to use
const int...
I need a controller for the lights and dials in my aircraft sim. Is it possible/recommended to use a single teensy for this? or do I have to build two boxes? Which teensy?
Hello,
I've noticed something that I can't seem to find my way around.
On my teensy 3.5 and 3.2, I have code that is written for serial comm. between teensy and windows (bidrectional).
Those work fine, and I've...
Hello everyone,:D
I have a system that I need to record about 10 4-byte variables at a pace of 2K in ~25 minutes duration.
Because of the fast rate of the system, I don't have enough time to wait for the SD card...
I try use MCP4921 dac witch T4 and it not really working good. I write simple code for tremolo effect and output is with distortion :(
It must be done witch interrupt routine because rest of code require interrupts....
Hello
Simple question. I have a 4.1 and the dedicated audio adapter board.
Pin 15/A1 is noted for use as an external volume pot. I don't need this.
Can I simply use this pin as I/O, or do I need to do something...
New to the teensy eco system. Got a T4.1.
I have one thing to confirm before moving on with it. We need the ability to update the firmware without using a PC / laptop. In the R.R. industry this is forbidden to install...
Hi, I'm new to Teensy. I've got the 4.1 and am looking to use this chip inside a container that needs to be permanently "potted" with epoxy. This will no longer allow access to the physical reset button. However I do...
I searched but didn't see this discussed on the forum. The T4.1 is out of stock, is there an expected date when there will be more? I am seeing a lot of orders for my T4.1 based grblHAL breakout board and the customers...
Hi All,
Recently I hooked up an ethernet kit for my Teensy4.1. I soldered everything in and loaded up the example file UDPSendReceiveString.ino.
When I start the program, I get the message (in the serial window):...
Hello guys,
Does anyone have an example of an FTP server running successfully with Teensy 4.1 and QNEthernet
successful running ?:confused:
I need an working library to upload an download files between the...
Hello,
I'm using a 10 slot rotary switch and breakout board from SparkFun. https://learn.sparkfun.com/tutorials/rotary-switch-potentiometer-hookup-guide
I've wired it up and tested resistance. All wiring and...
Despite the Teensy 4.1's tiny size, I want to go smaller. I'm certain this is frowned upon but I'm trying to be a bit naughty by chopping the board at the place shown in the pic. After this is done, and using this...
Hello all,
I've created a sketch to read some outputs from an analog-to-digital converter. I've chosen the AD7124, from Analog Devices, and found a well-reviewed library online from EpsilonRT : ...
Hi Paul,
I'm developing a howling suppression mixer using Teensy 4.1. I need to get the data samples to perform my howling detection and suppression algorithm. My system model is shown in the picture attached....
I'm using Google Translate. I think my English is strange, but please forgive me.
I'm a Tenssy beginner.
I want to operate the patch change with a foot switch(Just Tenssy LC.Without PC).
Connect the Tenssy LC to...
Hi! How it is done? How do I generate a locked, stable square wave at the same frequency as a stream of pulses coming from MIDI clock? Any references?
Thanks
Hello, I'd like to preface this by saying that I've read through the Wiki and the Audio Library documentation beforehand. Despite completing some basic projects, I remain a beginner when it comes to Arduino and audio...
tl,dr: When I declare an `AudioInputI2S` or `AudioOutputI2S` object and upload the code, my Teensy 4.1 won't boot: no USB devices (host computer doesn't even see it), no GPIO activity, nothing. It doesn't even get to...
Hi, long time reader, first time poster.
I purchased a Teensy 4.1 with Audio Shield a while ago and it has been perfect. I recently set it up to accept I2C commands from an Arduino Portenta instead of Serial commands...
Hi All,
I made an auto-repeat motor control system with three pots to control speed, acceleration and delay time onT3.2.
I was able to stop the auto-repeat by using the Interrupt button, but realized that there is no...
Hello!
I’m doing an electronic drum project where I have a teensy 4 inside a drum doing all the sensor processing and MIDI triggering. It sends out midi through a usb cable to a pc that triggers all sounds.
I’m...
Hi all
I am currently working with an Arduino mega to control 1536 WS2812 LEDS or Six 16X16 WS2812 panels.But this is the limit for the mega.
I have no problems at all EXCEPT I need to control EIGHT panels =...
Hi all,
For quite a while I have been working on a dual motor (PMSM/BLDC) control board for Teensy 4.1.
Main goal for me is to learn things, so all help is welcome!
It is working quite good if I may say so. The...
I'm looking for suggestions on how to accomplish this...
I want to monitor the strokes of a pump running 0-500 strokes per minute. I think this would be done by triggering an interrupt on each stroke and comparing...
HI Folks
I've just got a teensy 4.1 - loving it so far!
I plan to build a portable daw/tracker - much in the style of LCDJ, Dirtywave's M8 , Reaper - it's not commercial, I'm not competing with those guys, just...
Hi! I'm using a teensy 4.0 on a breadboard and trying to get 5 PIN MIDI in to work. I'm using the code and following the schematic from PJRC's Teensyduino library / MIDI located here
Here is the schematic (I'm only...
Hi,
Im working on a fairly complex project and one of the things it does is write to a bunch of SPI dacs and read from an SPI adc.
The write speed of the spi dacs are rated at 20Mhz clk (although before I realised...
Hi, I read all the recent threads about shortages for the newer Teensy's. Sorry if i missed the T3.2 update. Is there any info on when Teensy 3.2 may be back in stock?
NVM - saw the update on...
Following instruction from https://www.pjrc.com/teensy/td_serial.html, I use this code to read data from PC host:
unsigned char bytecount = 0;
while (SerialUSB1.available() && bytecount< 128) {
...
Been looking at making a GUI for my electronic lead screw project. Are there any libraries that folks know of that are a step up from the ILI9341_t3 sort of libraries? By that, I mean a little higher level. In what...
as you can tell from my question, i am very new to this.
I am designing a box that willl have 12 dials for a flight sim.
I would also like a screen with labels for the dials
(different vehicles have different dials)...
I am trying to build a water sensor with the design in the image below (JUST the high water sensor). I have substituted a 2n3904 for the BC548C (because I don;t have any of these). I thought they were similar enough to...
Some time back I built a frequency counter using a Teensy 3.6. Very minimal amount of code required and it worked great. Input if I remember right went directly to pin 13 (LED) (SCK0). Since the 3.6 version is out of...
I have this sketch working perfectly with adafruit feather M0 wifi ATWINC1500, but I want to use my teensy 4.1 for my project. I can connect to wifi and openweather.com with my API and 'GET' my data string using...
I'm using the USBhost_t36 lib to connect the popular Arturia minilab mk II midi keyboard/controller to a synth I have developed for Teensy 3.6. Unfortunately note on and off events are lost when I play keys and move the...
I'm working on a project where I want to sample a 100Khz 180-degree phase-shifted square wave. All I want from the square wave is the amplitude. The actual amplitude doesn't matter just that after the filtering the...
Hey folks,
I'm attempting to connect a keyboard to my teensy 4.1, but it doesn't seem to recognize it for some reason.
To begin, I'm quite certain that I connected the GND, +5V, D-, and D+ pins correctly (I even...
Greetings, im jus starting to learn how to use this wonderful board, i have found out that i need to output specific voltages through 1 wire, those voltages usually range between 100-500milivolts.
Naturaly i assumed...
Trying to figure out this Teensy USB host stuff, but found no documentation on it so here is the issue.
I'm on Teensyduino 1.56 Arduino 1.8.19
I want to connect some other Teensy( 3 x 3.2s) devices over USB serial...
Would there be anyone interested in an adapter board that makes a Teensy 3.5 work with Arduino Uno/Mega/Due sheilds? It's basically just an adapter that arranges the Teensy pins to conform with the Arduino layout. I...
I can use NativeEthernet together with the original ILI9341_t3 library, this works well using SPI, not SPI1.
But now I want to migrate my display to SPI1, because I need SPI for the HighPowerStepperDriver lib from...
Hi, I need access to the Teensy 4.0's USB port so that I can send data to a computer (and flash the Teensy), however the form factor of my packaging doesn't allow for me to mount the Teensy against the wall with the USB...
I'm sure most readers here will be aware that not all USB power sources are equally strong. But since I was measuring some voltages with Teensy 4.1's ADC, I also just now took some measurements of the Teensy's "5v" and...
I'm guessing that this hasn't been solved yet, I have a Chromebook with the Linux container enabled. I can install the Arduino IDE, Teensyduino, and all of the libraries I use for my project. I can compile the project...
I need a 2 MHz clock pulse, which I tried to do with PWM using:
analogWriteFrequency(14, 2000000);
analogWrite(14, 128);
This doesn't work. It looks like the maximum frequency I'm able to generate this...
Hi,
I want to drive 20 OLED displays (SSD1306 type) with a teensy 4.1 from a single SPI port (in total I have 40, using the two available SPI ports). The desired SPI speed is 20 Mhz.
The initial design had two...
Is it possible to use an external micro SD card on a Teensy 4.1 ?
I have some test code, see below, that works fine on the Teensies built in micro SD card.
But I want to use an external additional micro SD card...
Hello forum! First time posting in the forum, have been playing around with Arduino and Teensy for some years. Been luring around in this forum and learned a lot.
So I have an ongoing art project using Teensys which...
Hello,
I have two cameras that need to be triggered at different frequencies. One camera is always triggered N times more frequently than the other. Each N trigger should line up with sub-microsecond precision.
...
Hi,
I have a problem I can't quite figure out - I'm using a Teensy 4.1 to take audio from an audio jack (AudioInputAnalog), add a delay effect, then pass it back out through another audio jack (AudioOutputMQS). I also...
Hello all! I am currently working on a project where I would like to have different 'applications' to choose from and load them from from say an SD card into an array and execute it. I found this neat thread...
I have two different noise sources, one I assume is from the power supply but it is very low. I have a 2nd issue with a lot more noise (hum/buzz, video with noise below) coming from a TFT display connected via SPI. This...
Hey all,
I'm starting to think I don't properly understand how the audio mixer (AudioMixer4) actually works. I've been through the code for it and also looked at the short docs from the Audio System Design Tool. My...
Hi,
I'm working on a small synth using a T4.0 w/Audio library. I want the "oscillators" to track the pitch / frequency of a simple (sine / square) external audio waveform. I already have some good success with a...
Hello all
I want to jump over to Teensy 4.1's, as 3.2's appear to be impossible to find at the moment.
So, I want to incorporate level shifting in my board design and I see that Sparkfun and other people use a...
Hi all,
I've been experimenting with Paul's workaround to use arduino-cli with my Teensy 3.2 to automate my workflow. While it's been working great from all existing shells on my computer, the same cannot be said...
Hi all,
my Teensy 3.2 was resetting and i couldn't figure out why. The Teensy is being used to run 4 clocks for modular synths which all have various settings. One of the functions i've built is for one clock to...
I’m working on a drum machine where the Teensy is triggering analog drum circuits, then the audio is fed into the Teensy (audio board line in) for processing. The drums with big transients are distorting.
I...
Dear All,
I am using the nvidia jetson nx boards( ubuntu 18.04) USB 3.1 interface to power ON the Teensy 3.6 Board.
I have uploaded the FLEXCAN library example sketch to the teensy 3.6 board. The code is given...
I need to monitor 16 potentiometers and present that data to a windows pc. Windows can receive analog data and interprets that as an 'axis of a game controller'.
Can I flash a teensy 4.1 with mmjoy2?
The other...
I'm trying to track an intermittent fault on a teensy (micromod) project that runs off USB for most of the time.
The fault only happens very occasionally, when it does it locks-up then auto reboots after the 8...
I'd like to make a quadrature signal simulator. This will be used to test other code, which isn't part of the discussion. A real shaft encoder has two output signals, call them A and B. I'd like the simulator to...
Well I had everything working like I wanted it and decided to try and power the Teensy from a 12v -> 5v buck converter on Vin. Not sure what happened, but the light does not come on anymore and the USB sound is not made...
I am connecting a nextion screen to my teensy4.1 through UART. It works fine, but I was wondering if for the production environment (the screen will be on a steering wheel, while the teensy is in the dashboard on a...
I am using this code to monitor 5 pushbuttons
int btnPins = {
19,20,21,22,23
};
int btnCount = 5;
void setup() {
for (int thisBtn = 0; thisBtn < btnCount; thisBtn++)
Prop Shield, Low Cost and Teensy 4.1, are they compatible?
I'm willing to use as an audio amplifier for a project, and read audio from 4.1 SD
does it work?
Thanks
Using Teensy 3.6, Arduino IDE 1.8.15, Teensyduino 1.54.
Trying to use two hw serial ports at the same time.
Is that possible? (please pardon my noobiness)
I found this page:
...
Hy everyone, Lestra here, 59 year old drummer who wants to build piezo/drum trigger module (to get midi output from piezo) but I am so scared :confused: because I know almost nothing about using Teensy so please be...
Hello,
sorry for my english,:rolleyes:
I use a teensy 4.0 the outputs numbered 2 to 10 are used to control leds with a PWM symbol.
Each led and controlled by a "state machine" with millis functions (9 millis defined...
Hi,
I am new to Teensy, and I'd like to get a better understanding of the hardware. Is there any documentation the describes all of the pins on a Teensy 4.1 and what they are used for? Or, are there multiple sources...
Hi folks,
I'd like to update the USB audio for Teensy 4 to handle more than 2 channels (starting with 4 but eventually 8) which it only currently supports, so that I can play 4/8 different channels from my computer...
I seem to be getting this strange error where the channel number reported by various midi monitor tools is off by one, for example sending b2 results in address b1, etc. What am I missing?
...
