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I captured full reg details from all three devices - Arduino Mini, Micro, and Teensy LC and ran through Compare text editor tool. There are no differences, but I'm pasting the results below, just in case any settings need special treatment on Teensy: Address - HEX - BIN 1 - 4 - 100 Controls the...

I have an issue that puzzles me a lot. Given: - two RFM69W 868MHz modules (bought from the same seller at the same time) with simple pieces of ~9cm wire as antennas - Teensy LC - Arduino Pro Mini 3v edition - using LowPowerLab RFM69 library - not using encryption - using set300KBPS Arduino is...

Yes, I suspected that USB MIDI protocol has its specifics and it would not work with direct pass-through of "old style" serial MIDI bytes. I hoped there was a way to tell USB MIDI API "Here are raw bytes of serial MIDI without separated status & channel; please interpret them as necessary to...

I think I finally found something; sharing it in case it might be useful to others. It turns out I can reuse Control Surface MIDI library parser alone. It's a bit confusingly named SerialMIDI_Parser but actually, it is not linked to a serial port at all, it just accumulates bytes in a serial...

I'm working on a pair of devices that send (Mini Pro + NRF24L01) and receive (Teensy + NRF24L01) raw MIDI bytes from the source device. Currently, I don't even care about what kind of MIDI message it is, I just want to forward it to USB MIDI. There will be no Sysex messages coming in from the...

This makes me wonder if it would be possible to create an instrument that controls the pitch by mouth shape alone without using fingers. My finger coordination is not good at all, but I'm good at whistling precisely in tune. But I imagine such an instrument would require a reed with lots of...

I remembered I had ordered a bunch of 49E Hall sensors from AliExpress a long time ago, will try to find them in my components box. Not sure, if they will be sensitive enough, but I've seen some suggestions to use them in parallel to essentially double the output. Also, some datasheets claim...

I'm in the same boat. My main motivation is that it seems unreasonable to pay such a high price for a device that doesn't 100% satisfy me and still overpaying for features I don't need. I'd better invest more in quality software synths. In my opinion, a simple wireless EWI shouldn't cost more...

Interesting. I'm wondering if there is something special about PS controller buttons, and other generic game controllers might have worse quality buttons that do not work as reliable variable resistors. Regarding the optical sensor - it might depend on calibration a lot. Initial zero position...

I, too, can vote for nRF24L01+. It can be fiddly, especially if you happen to have fake modules (which I, most likely, have) and it is somewhat nitpicky about its powering and wiring, but with some software and hardware tricks you can get it working rock solid Actually, wireless comm is the...

Thank you, John, for the great idea! I have an old half-broken game controller lying around, will try to see if its buttons can be used. Looks like you have a solid device there. I'm still experimenting with software parts and looking for a simple case to avoid 3D printing while I'm not yet...

Thanks, Jonathan, for the moisture warning. In that sense, a Hall sensor might work even better than an optical one because I can completely seal it. I found a service manual of an Aerophone AE-10. From their photos, it seems, the bar that is pressed by the "reed" doesn't actually touch any...

Yes, I was thinking of some kind of pressure sensors first, but had some doubts, seeing that EWIs usually avoid this solution. One reason to avoid it might be durability. Another issue is sensitivity. I would have to press it with my lips - not sure if it would be able to detect such a soft...

Hi there. I too am having delay troubles because of an I2C display, but in my case, it's related to RF24 communication (losing some incoming packets because display refresh takes 50ms, which is too long) and not audio. Having some programming experience with Microsoft DirectSound and dealing...

Thanks for the reply. Yes, I might end up spending the same amount as AKAI EWI USB (about 300 EUR), but even then I'll have much more moddable hardware. I'm already experimenting with a wireless solution using RF24 with Teensy LC and Arduino Nano, and it works rock solid now with under 1ms...

Hi all. I've been looking at electric wind instruments, both professional and also do-it-yourself projects. The mouthpiece seems to be the most tricky part to get done right. I have seen a few approaches for implementing breath sensors and bite sensors, and I'm not sure which one would be the...