@mlu:
Sounds like a fun project !! Would it be of any benefit to drive the solenoids from shift registers (74HC595 - I used these very nicely in my <TeensyMIDIPolySynth> project to drive 40 LEDs plus 2 x 7-segment...
@Robot:
If I understand your request correctly, I did that exact same thing for my TeensyMIDIPolySynth project using the Adafruit PowerBoost 1000 (2465) & the Adafruit Panel Mount Extension USB Cable Micro-B Male to...
Here's what I'm using in the project currently occupying my workbench:
#include <ILI9341_t3.h>
#include <XPT2046_Touchscreen.h>
#include <ILI9341_t3_Controls.h>
#include <font_Arial.h> // custom fonts...
Because we occasionally do solder-based repair/rework (cables, components, etc.) in our development lab at work, we are required to take a Lead Safety class annually. One of the biggest surprises that came out of this...
Likewise, I forgot to mention in my earlier post that OSHPark accepts KiCAD files directly . . . no need for Gerbers there as well.
Mark J Culross
KD5RXT
Ben:
To produce a PCB, using KiCAD is a good place to start. I have produced several boards, with requirements ranging from very simple to quite complex, for both hobby & work (I am a software/systems engineer, but...
@Gadget999: Can't tell if you are looking for the "pin map/definitions" or for "ASCII art which details the pin map/definitions." Does <this> provide the info that you are looking for ??
Mark J Culross
KD5RXT
As a follow-up, I was able to get the display & touchscreen working as before. I haven't tested the audio adapter yet, but that should "just work" as it has.
In the end, I ended up with the following pin assignments...
@PaulStoffregen:
I am playing with a Teensy 4.0 + ILI9341 Touchscreen + Audio Adapter Rev D. The text on the ILI9341 touchscreen display <page> is not very clear on when it may be appropriate to use the alternate...
@defragster:
Thanks for the reply. I have to admit that the text on the ILI9341 touchscreen display is very confusing/contradictory to me. In the "Connections" area, it says "This ILI3941 display works well with...
I have a PJRC ILI9341 touchscreen connected to a Teensy 4.0. I use an #ifdef statement to switch between the default pins & the alternate pins (for when using the ILI9341 touchscreen display & the Audio Adapter on the...
@morry:
From this <URL>, here are some stated limits (Note that these are assumed when using the OctoWS2811 Adapter, which supports 8 strips . . . may not be exactly what you were asking, but should give you some...
In my TeenyMIDIPolySynth, as I read the settings for any of the controls that lend themselves to being restored (toggle switches, waveform selections, etc. . . . basically, everything except the pots), I start a...
@soky157:
Mate the "5V" & "GND" pins on the audio board with the "5V" & "GND" pins (respectively) on either the T4.0 or the T4.1 & you're good to go !! On the T4.0, the "GND" pin is simply labeled "G". I'm not...
In bigFile2MB, should the "while" be changed as marked between "==>" & "<==":
void bigFile2MB( int doThis ) {
char myFile = "/0_2MBfile.txt";
char fileID = '0' - 1;
if ( 0 == doThis ) { // delete File
...
DB:
I'm glad that you asked & happy to answer with regard to the meaning of the amateur radio callsigns: the amateur radio callsign letters & number do have some meaning. Historically, there used to be very strict...
I looked up the KD5WMY callsign & found that it belongs to Dale S Garcia. I don't know Dale, but with the unpredictability of radio propagation, I may actually catch him on the radio some day !!
Mark J Culross...
@MIDIMinion:
Maybe take a look at using a "digital switch" (CD4066) or maybe even an analog MUX (8-channel 74HC4051 or 16-channel 74HC4067 - both are way overkill, but will certainly do the job). If you use the...
MIDIMinion:
There's a discussion on another thread <here> that talks about how to disable MIDIthru in software. Is there some other factor necessitating the op-amp approach, or would disabling MIDIthru with software...
@mmryspace:
Maybe you could try just sending a "NoteOff" message for each of the base notes, in addition to the "NoteOn" message that you are sending for each of the transposed notes.
Good luck & have fun !!
...
Bazziil:
A few years back, as our amateur radio club refined the electronics packages that we launched via a weather balloon (up to 100,000 feet), we found it very valuable to test everything as best we could before...
@Hayden_:
I don't have any specific experience with the Arturia Beatstep, but if you have it setup to send a middle C every 16th note, I would expect that you'd get a NoteOn/NoteOff pair at that rate. Looking at...
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