Richard Meister

Cool, blinking sounds promising. Thanks for your effort!

 Looks a little distorted. But one can see the preamble and some bits following (with a larger zoom factor than in this picture). Maybe you can reduce the amplifying...

To be honest, the frequencies in the browser profile are almost untested. I just took the highest possible frequencies for a sample rate of 44.1kHz ( → max is 22.05kHz...

49 Baud will not work, because the TCNT_BIT_PERIOD constant exceeds the range of an uint8_t and is therefore trunkated. As countermeasure we could try to change the prescaler, but then...

>Oh, excellent -- is there any way to export that so we can add it to the repository? Maybe as LibreOffice file? >Can you explain or link to more info...

Is it an Arduino Uno?

I guess you already tried different volume levels? You could activate debug mode for SoftModem and look if the led blinks when you play/send something from the browser: #define SOFT_MODEM_DEBUG_ENABLE...

Sorry @jywarren , overlooked your last question. Yes I did. I see you worked a lot on Webjack last days. I'll take a look at the changes on Thursday or...

I think the many dev boards will cut down to some processors. Though, the pinout may be different and should be documented in a wiki, if the board's type is...

 Not sure if this is random noise. I expected to see some 50Hz ripples from the AC adapter, but it doesn't look like that. I'll watch out for an...