rmeister 6 research notes and 12 wiki edits | Joined over 3 years ago

I'm a german student of electronics engineering, interested in IoT, radio signals and mobile communication.






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"Not sure what 5V pin you mean, but yes a 4-pin cable is need to connect to the microphone input of smartphones/mobile devices. " | Read more » over 2 years ago
"Hi Don, thanks for your awesome feedback! That notebook looks really cool. I wasn't aware of Jupyter and it looks like a great way to explain and ..." | Read more » almost 3 years ago
"@donblair - Thanks Don, that demo looks awesome! Happy to see that WebJack is in use :) I gladly try to answer questions if there are any issues w..." | Read more » almost 3 years ago
"Thanks Ananyo! I'll happily answer any questions when you have the board :) " | Read more » almost 3 years ago
"Thank you for the good feedback Jeff. It was great to have you as mentor during this summer. Your responsiveness was marvelous, your answers very h..." | Read more » almost 3 years ago
"According to the first review on Amazon the pinout of the cable is (from tip to sleeve): Left (white) Right (red) Video (yellow) Ground But as..." | Read more » almost 3 years ago
"Right, that should be inlcuded in the readme. Yes, echoCancellation is disabled at quiet.js: https://github.com/quiet/quiet-js/blob/master/quiet.j..." | Read more » almost 3 years ago
"Sure, but anything above 7kHz will need disabling echoCancellation. gh-pages is currently set up with 2450 and 4900 Hz, echoCancellation active. F..." | Read more » almost 3 years ago
"@warren this is the tutorial for testing without Arduino :) Signal looks fine though. Remember to change the frequencies in SoftModem.h " | Read more » almost 3 years ago
"That could work. But you will need an additional adapter for every device with AHJ pinout: https://www.headsetbuddy.com/3-5mm-ctia-to-omtp-smartpho..." | Read more » almost 3 years ago
"Leonardo is again a different processor with different names for the timers used in the library. I think we can fix that with some #ifdef's in the ..." | Read more » almost 3 years ago
"Cool, thanks for your effort! " | Read more » almost 3 years ago
"If the nanite's output is 3V, then the voltage at your phone will be about 3V as well for the first few periods. But after a couple of periods the ..." | Read more » almost 3 years ago
" For an (unequally) attenuated signal, the amplitudes for f_low and f_high are uneven. In this case, the amplitude for f_high is very low. Cool, ..." | Read more » almost 3 years ago
"Oh yes, the signal is still attenuated. Didn't see that on my phone yesterday. " | Read more » almost 3 years ago
"Cool, looks good. Thanks for your effort! Maybe try switching the wires to sleeve and ring2. " | Read more » about 3 years ago
"Probably you ment an other circuit, as I see you have a background in electronics engineering :D " | Read more » about 3 years ago
"It's a voltage divider (so your phone won't be damaged by a too large voltage) and a high-pass filter (removes DC voltage). Would you give it a tr..." | Read more » about 3 years ago
"Wow, thanks @kinasmith! Probably this pulses are sort of a presence detection for the microphone? Could be an issue, but most of the signals from ..." | Read more » about 3 years ago
"A friend of mine just tested the demo site of the FSK generator with his iPhone (ios9.3.3). The script does not seem to work anymore :( " | Read more » about 3 years ago
"Hi @dusjagr, thanks for that hint! Found a Safari compatible version of the FSK generator in your link section. At least sending data to the ┬ÁC sho..." | Read more » about 3 years ago
"Hi Liz, thanks for your feedback! You can click on the photo to get a larger version. There the connections are visible more clearly. I'll see if I..." | Read more » about 3 years ago
"Oh, maybe I should add a note for iPhone and Mac users. According to this site, Safari does not support WebRTC yet: http://iswebrtcreadyyet.com/ " | Read more » about 3 years ago
"Is there somewhere a link without https? " | Read more » about 3 years ago

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