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Nikhil P.R.Participant
yes you can….
Of course, you need a raspberry pi 3A power supplyA SD card at least 16GB and it is important that it has a good speed of reading / writing.You will also need a screen and an HDMI cable to display the beautiful Android interface. You can also use the official touch screen of the foundation that does not require the use of an HDMI cableThen you will need to download the Android image and sh script that will install the Play Store.This is all taken from the official site, I could send a link where the process is fully described, but for some reason such posts are deleted.Nikhil P.R.ParticipantHello! Here is an article about this process and project. https://tutorials-raspberrypi.com/how-to-use-raspberry-pi-fingerprint-sensor-authentication/
February 27, 2019 at 4:25 pm in reply to: How to calculate the resistance of a complex square resistor? #15029Nikhil P.R.Participantthen a similar request worked. in the end, everything was decided by formulas and calculations. in the comments, you can see.
Nikhil P.R.ParticipantTry this for audio1. Make sure you compile against this implementation / version of ortportp-0.22.0.tar.gzGet it from here : http://download.savannah.nongnu.org/rel … p/sources/2. I changed the opus encoder / decoder to int16 from float – due to my audio devices was simple16 bit cheep stuf.changes to tx.c rx.c and device.cjakobsen@w520:~/work/trx/trx-0.3$ diff rx.c /home/jakobsen/work/friaudio/pi_node/src/trx/rx.c73c73,74< float *pcm;—> //float *pcm;> opus_int16 *pcm;79c80,81< r = opus_decode_float(decoder, NULL, 0, pcm, samples, 1);—> r = opus_decode(decoder, NULL, 0, pcm, samples, 1);> // r = opus_decode_float(decoder, NULL, 0, pcm, samples, 1);81c83,84< r = opus_decode_float(decoder, packet, len, pcm, samples, 0);—> r = opus_decode(decoder, packet, len, pcm, samples, 0);> // r = opus_decode_float(decoder, packet, len, pcm, samples, 0);241c244,245<—>>268a273>jakobsen@w520:~/work/trx/trx-0.3$ diff tx.c /home/jakobsen/work/friaudio/pi_node/src/trx/tx.c63c63,64< float *pcm;—> //float *pcm;> opus_int16 *pcm;91c92,93< z = opus_encode_float(encoder, pcm, samples, packet, bytes_per_frame);—> z = opus_encode(encoder, pcm, samples, packet, bytes_per_frame);> //z = opus_encode_float(encoder, pcm, samples, packet, bytes_per_frame);245,246c247,248jakobsen@w520:~/work/trx/trx-0.3$ diff device.c /home/jakobsen/work/friaudio/pi_node/src/trx/device.c56c56< r = snd_pcm_hw_params_set_format(pcm, hw, SND_PCM_FORMAT_FLOAT);—> r = snd_pcm_hw_params_set_format(pcm, hw, SND_PCM_FORMAT_S16_LE); //SND_PCM_FORMAT_FLOAT); -
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