I need to transmit audio from laptop to 100meter distance. The audio should be encrypted. The reciever has to be small and portable.
What are my options? Are there any modules you know i could use? I have basic soldering skills.
Bluetooth is too short range for me :(
>>51553072
>OP here
>even trivial encryption will do
>audio quality can be shit, im only transmitting voice only
>receiver should be about size of a USB stick or simple RTC-module
>>51553087
Real time encryption?
>>51553120
Yes, should work real time
Alternative is to find a module that works on 2.4ghz and can do audio transmitting with out any additional ADC's
What are you transmitting the audio to? Another laptop?
>>51553279
to small headphone amplifier.
http://www.audiopro.com/wireless/make-any-audio-device-wireless
big ass speaker and a good mic
will be somewhat lossy though
>>51553316
>http://www.audiopro.com/wireless/make-any-audio-device-wireless
>30-50m range
>no encryption
>>51553072
What latency we are talking about?
>>51553392
2000ms is acceptable.
>>51553411
budget?
>>51553418
max 100euro
>>51553072
probably dont help this shitskin?? just imo
>>51553430
Is the 100m distance in an open area? If it is I would use wifi, directional antennas and a cheap used netbook. Set up mumble on it..
>>51553470
mostly open area, some trees etc might be in the way but not much.
unfortunatly cant use netbook, has to be a portable solution. Has to be smaller than any android phone i could find.
>>51553496
>has to be smaller than any phone
What are your size and weight requirements? Is this for a quadcopter or what?
>>51553512
weight can be as much needed.
Size cant exceed 70mm X 40mm X 5mm
Battery does not need to be included.
This is for disabled person but you not need to worry about him operating,handling the device.
>>51553529
hmm, can't you use a raspberry pi? Yeah, they don't fit your size requirement though (except the zero which doesn't have analog audio out). Maybe search for a similar small board, I don't know any though.
>>51553072
There's smartwatches out there that take sim cards, maybe you need to look for one that has mobile internet.
>>51553566
>>51553615
thank you, those are good ideas
I also came up with just stripping my old Nokia phone 8210 to bare minimals and have it auto answer a call.
Stop planning heists, enlightened Tyrone.
How about optical? Like laser, but this sounds like a big hassle. Otherwise just slap some shit on two rp0's and use 2.4 ghz modules.
Or directional wifi antennas. I did this for ip cameras, worked quite well and is easy to setup on an android environment.
Try asking /diy/.
