My objective is to read values from the SD card using INIfile from Steve Marple.
The 3 values I am needing to read will be (apikey, ipaddress, updatetime). I can build the .ini file, as it is very easy.
apikey (This...
OK, I see that TPD3S014 is only rated up to 6V.
I never used or plan to use 2nd USB port.
Question is now: should I remove TPD3S014 if I wanted to apply say 2S lithium batteries on Vin, or is 6V rating for operating...
To make your own PCB that's fully compatible with Teensy 3.5 and works with Teensyduino, you need this bootloader chip.
https://www.pjrc.com/store/ic_mkl02.html
While this message isn't "legal advice", the other...
Hi, Can anyone tell me what is required to legally incorporate the Teensy 3.5 platform into a project that im building but not a prefabbed Teensy but the processor with boot loader would be incorporated into my circuit...
As part of the MIDI spec every input of a device has an opto-isolator, every communication line only needs one opto-isolator so the output line does not have it’s own because when it’s plugged into the input of another...
Wow, lots of questions. Let's see if I can get them quickly...
The plan (where "plan" is a rather strong word....) is what I call "low priority". That really means it may be years until it happens, but a more...
The answer to your last question depends on the signal type.
The signals at Teensy's pins are called called "TTL level" serial. The signal is high when idle.
RS232 signal levels, commonly used on 9 pin D-sub...
First, you *must* cut the VUSB-VIN pads apart on the bottom side of the board, if you will ever plug the USB cable in while the battery is connected. Even if you believe you would never do this, I recommend cutting...
Maybe a HCPL-263L or two HCPL-260L could meet your needs?
https://www.mouser.com/ProductDetail/Broadcom-Avago/HCPL-263L-300E?qs=s%252bgfxR24RQ5Mzfnn5S6rIw%3D%3D
...
Yes, I was studying those schematics but there are several problems.
They are unidirectional, they only isolate the Midi input. We must assume that the Midi device at the other end has its own opto-insulated input.
...
Hello everyone,
I have a battery-powered project based upon Teensy 3.5, for which a requirement is adoption of AA batteries.
Now, those may be either alkaline (1.6V when fresh, 1.0V when almost depleted) or NiMh...
Hi all, but probably for Paul:
I've been studying the internals of play_sd_wav, and have a pretty good grasp on what it does.
However a few points are puzzling:
1. Several combinations of data rate and...
Hi,
have you looked at Midi? It uses the serial protocol, runs at 31250 baud and is opto isolated.
There is a schematic on this page: https://www.pjrc.com/teensy/td_libs_MIDI.html, but there are also boards...
Ok. It seems currently not to be a big problem for me because I decided to disable the filter not by settings but with a mixer channel (as you proposed).
I like the handling of the AudioFilterStateVariable and...
Hi all,
I'm planning to interface a Teensy 3.5 system to a RAMPS 3D printer type motion driver. The motion system uses a 5V Arduino with a 5 Volt Serial TX/RX communication port.
As the two systems are going to...
I turned on my setup and starting from the downloaded code I modified the setup to have a starting Serial1( baud ) and modified the loop() code so it detects the _FE and stops testing and stops any changes after that.
...
The code in the linked thread should be quite current but it only contains the two drivers. If you are interested in the complete project including the hex parser and the actual downloading you can download a zip here:...
One way to clean up the output and process would be to leave "testing=true" to cause the problem.
Though it then keeps cycling. So the code above if edited to stop testing on the _FE detection as follows would at...
I tried to simplify the code producing the problem, but it is hard, as the fault is a little temperamental, so code from #23 is good to try.
I experimented with using the code below as a test of current status:
void...
It seems that is the code I ran and saw the issue.
For fun putting this bold code posted above in the noted function shows it detecting the _FE - as it did on your other thread code:
That would allow a discrete...
So this happened today...
https://hackaday.com/2018/10/16/these-twenty-projects-won-the-musical-instrument-challenge-in-the-hackaday-prize/#comment-5296539
My Teensy Beats Shield is a finalist for the Hackaday...
In my admitedly limited experience most 4 pin potentiometers have what's called a center tap on that fourth pin that I believe allows you to change the resistance of the pot for some reason or another. Although they...
Let's just say that there is no "right" or "wrong" when it comes to what you signify as middle C, it will vary from manufacturer to manufacturer and country to country. Despite this, the MIDI notation never changes in...
Audio ist way too fast to see any LED flickering. Audio frequencies are too high to be visible. From 40Hz, a really deep tone, to 16000-20000 Hz. Human eyes can see much less, like 20-50 Hz.
So you may want to write...
It is 32 Bit, not 24 (least 16 significant bits are 0). A lot of people are using I2S, including me, and yes, trust us: It just works, with good quality :) You can use the Audioshield for example. Other chips than...
I added the enable wire and I'm running the code from msg #23.
It seems to be reproducing the problem, but I'm out of time for this today. Will look at it in detail early tomorrow.
I am using the audio board and Teency 3.2 boards. The code is the USB pass through in the examples under audio. I expect to see 16 bits on the i2S but when I look at it on the scope it seams to be 24 bits.
Anyone...
Hi peeps, i have a question. iv been using the Audio System Design Tool for Teensy Audio Library (output below) and im trying to get it to output to the teensy 3.2's dac and also to a pwm pin to pulse an led in a sort...
That's why I am puzzled, the FSEC Bits are set such as to enable mass erase.
0x40,
// = 0b0100 0000
// Disable Backdoor, Enable Mass Erase, Grant Factory Access, Enable Flash Security
However, I did notice...
They should not. Different note naming conventions are halfway ok (we are used to that here in Europe where almost every country has its own naming scheme), but the note number to frequency conversion must remain the...
Hi Paul,
thanks..
I mean for example this B10K18.. sorry i can't find the datasheet.
.. i experimented a bit and found out, that the right outer pin seems to be a dummy.. when i look from left and connect...
Luni, thanks for linking that. It does look good. Can I assume that the code in that thread is current? Also, I think I follow the intended use of the TeensyHalfKayDriver class, but do you have code you could share...
For Teensy 3.x analog inputs, usually 5K or 10K pots are best.
Normally pots have 3 pins.
Maybe you could be more specific, like links to datasheets or product pages for these ones for a 4th pin? Maybe others...
There are 2 issues.
1: The most serious is if you program FSEC to disable access to the memory and to also disable mass erase. When you press the Program button, the MKL02 chip (not MINI54, which was used on the...
Thanks for looking at that. I should have mentioned that I tried pulsing reset in various configurations. Just gave it another shot to no avail. I guess I'm going to order one up from WizNet.
I believe I have mostly gotten a DFU bootloader working on the Teensy 3.1 at this point :-).
I do this by uploading an application to 0x2000 and setting the stack pointer and program counter to the I.V.T. at that...
hi,
- can someone explain the difference between common potentiometers with 4 pins, and thos with 4 pins?
- I need 38 potentiometers in my project, and I am looking for good (reliable) ones, which are both .....
Orange and yellow wires are wrong/swapped at the WIZ850io in the 1st photo, but correct in the 3rd photo.
RST isn't connected. I've used the genuine WIZ850io without it, but this board looks like a clone. Maybe you...
Thank you ,
I was just working in advance before having all necessary parts for my toy :-)
I'll try the code as soon a I'll receive the new board confident that all will works correctly!
My best wishes
Andrea
Looked at the code just now. Should work fine on Teensy 3.2. It only uses pinMode, analogRead, Bounce, Joystick which all work on 3.2 exactly the same as on LC. I don't see anything that would "need to be corrected...
Thanks, Paul. Here's the specific wiring and some photos. This board is a generic clone as it turns out, but it does work with Mega. I confirmed that the compiler is using the library versions included with Teensyduino....
tank you guys for this fast answer.
I am still waiting for the teensy rc to arrive by postal service. I asked to the creator of the project regarding the board switch and he told me that " somethings need to be...
Hi,
Nice work ! Interested to hear which lion-battery and charger you used and how long it runs on batteries.
Can you hear the sound when you attach a headphone to the audioboard ?
Cor
Touching a piece of metal directly connected to a touch sensing pin works fine, until you discharge a bolt of static electricity into the pin, which is why capacitive touch sensors aren't made that way.
-- rec --
Hi there,
finally the housing of my batdetector is ready :-)
I use it with a LiIon-Accu and a Charger inside the housing.
The 20kHz-Peak comes from the LED-Lamp at my writing desk.
Everything works but how can i...
Hi all . I am building this portable console.
It use a teensy LC ad joystick /button controller, but I need translate the code to a teensy 3.2
I am totally noob regarding software stuff, o I'd need you help , anyone...
This post is only for say thank you to Paul and Robin for the great assistance I received with a problematic board. I 'll spread the world about it.
Thank you
Andrea
Hi, I am trying to use the Teensy 3.2 to output an analog voltage (using analogWrite on pin A14) then measure an impedance across two different pins. One problem I'm finding is that the way my design is mechanically...
Try running "tail -f /var/log/syslog" in a terminal. This will let you see the Linux kernel's log messages. Every USB connect & disconnect should show something. If you get nothing, plug and unplug other USB cables...
I used your code on a T3.2 and monitored its output with MIDI-OX. It shows the note as C3 (one octave below Middle C). There seems to be some confusion about whether Middle C is C4 or C3.
For example, my SY77 and...
I am testing a Teensy 3.6 with Wiz850IO board connected with jumpers via pins 10-13. When I run the WebClient_test example sketch below, the Teensy always prints "Ethernet shield was not found." The same adapter and...
Thank you for your quick response...that did not work, pressing the button does nothing (use to bring up the teensey programmer) I am using Ubuntu to run the code in...any other ideas on has my Teensey somehow gotten...
Try the recovery process, where you hold the button while plugging in the cable.
https://www.pjrc.com/teensy/troubleshoot.html
As a last resort, especially if using Windows, reboot your computer and do this from a...
Got a Teensey 2 ++ and loaded some keyboard code into it, needed to update the code and when I got it hooked back up to reload the new code, the switch will not bring it into program mode, and the menu is greted...
Sadly, it seems I didn't get the 2X oversampling quite right inside the state variable filter. It has stability issues when run at those extreme settings (high corner frequency and low Q/resonance). This is on my low...
Hello Paul, thank you so much for your fast reply... this is totally raw messages with nothing in between... I am using a MIDI monitor, already tried in Ableton Live and is the same.. in MAXMSP I can see that I have the...
This is a question that's been bugging me and I can't find a logical explanation, so here it is, I am using a Teensy to send a MIDI note for instance 48, witch is mapped as C3, monitoring the MIDI messages I have a C2.....
i just seen the sample player example last night while digging around. it seems to be the closest to what i need, although I'm not sure if it can be a refillable buffer. Playing wav files probably wont work, since both...
Thanks for the reply, I am going to order two 3.6 as soon as I'm done thanking you. I just discovered the Teensy, I think I may want to switch to it for all my projects and I haven't even got one yet. It sure looks like...
there are examples, in the IDE select File > Examples > Audio > SamplePlayer
You should watch the audio tutorial https://www.pjrc.com/teensy/td_libs_Audio.html
and read the audio workshop manual...
To have no audible effect, you'd have to set the corner frequency to something between 18000.0 and 20000.0Hz. To avoid ringing/clipping/resonance but maintaining ideal flat frequency response, set the resonance to 0.707...
You would have to add a mixer object. On one input, you'd connect the original signal, on the other the delayed signal. Then you would have to add code to read a potentiometer and to scale the readings down to a float...
