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Android serial port via audio jack - Stack Overflow
https://stackoverflow.com/questions/8425617/android-serial-port-via-audio-jack
You can record audio on the microphone jack without any problems. Doing this, you can essentially use your Android phone as a digital oscilloscope. You can then programatically convert this back to digital I/O. Serial output -> Android audio input -> Sampled square block wave -> digital I/O Please note that most serial levels are either 5V or 3.3V.
Serial communication via audio on Android
https://davidawehr.com/blog/audioserial/
Serial communication via audio on Android. In this blog post, we’ll go over how to send serial data from an Android phone using just the audio port. When working on AndroWobble, we needed a low-latency way to send data from an Android phone to an Arduino microcontroller. Revisiting this over a year later, I’m not sure why we didn’t simply ...
Android Audio-serial Connection | Hackaday
https://hackaday.com/2010/02/01/android-audio-serial-connection/
Android Audio-serial Connection ... His custom circuit board takes that sound in through the headphone jack and demodulates it for use on the serial port of a PC. ... Its UART type serial over the ...
RS232 serial signal input via 3.5mm audio port of android ...
https://stackoverflow.com/questions/19383890/rs232-serial-signal-input-via-3-5mm-audio-port-of-android-smartphone-android-de
I have a device, which gives me an output of essentially just a RS232 serial signal (1200 baud, 8 databits, no parity bits, one stop bit). This output comes in to my android phone via the 3.5mm audio jack. I want to store every data bit into a variable, display or calculate something and when the next bits come in, it should override the variable.
Serial Output using Audio Jack | B4X Programming Forum
https://www.b4x.com/android/forum/threads/serial-output-using-audio-jack.18833/
Hello everyone, i need some help converting a library done by someone else in Java to Basic4Android, this library allows us to use the audio jack on android phones as a serial port, the project explanation can be found here. I honestly don't know anything about Java, I do have Eclipse installed in my machine but don't know how to use this library and convert it to …
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