The setup would be a combination of 2 different units, set up across the BBQ area at Tempelhof. Each unit would fit in with the BBQ and radio sets around, adding some live musicians on the spot(s)... For the plan or scores read the score idea section.

Vitrine/BBQ Interactives

Raspberry Pi 2 or 3 with soundcard in/out and some sensors

BME680 = temperature, pressure, humidity, air quality sensor

PM2.5 Air Quality Sensor

enviro pHAT

mpr121 capacitive/touch sensor (12)

3D tracking and gesture, RGB sensors

software: python, puredata

lcd displej and a bluetooth reproduktor

A111 Pulsed Radar Sensor

Walking Synthesis

Teensy + Prop shield (6DOF + 2 watt amp)

all weather speaker 2-4 watt

the megaphones (sd-card, record/loop, voice, aux)

SDR = software defined radio

Lately our mood turned into a quick live setup in the middle of the BBQ area with self-built devices: 4 split-stereo channels transmitted by 4 raspberry pi radio transmitters, received on 8 portable radios, mobile phones, tablets, ... It is all working easily on usb-batteries with(out) a solar panel. A piece for green low voltage power and live musicians: let's go to Tempelhof and just play it! But how how how?

https://howtoraspberrypi.com/create-radio-transmitter-raspberry-pi/

https://www.raspberrypi.org/magpi/raspberry-pi-fm-transmitter/

https://www.rtl-sdr.com/transmitting-fm-am-ssb-sstv-and-fsq-with-just-a-raspberry-pi/

https://www.rtl-sdr.com/building-a-ham-tranceiver-with-an-rtl-sdr-raspberry-pi-and-rpitx/

https://www.rtl-sdr.com/pitx-qrp-tx-shiled-for-wspr-on-20m-now-for-sale/

https://www.tapr.org/kits_20M-wspr-pi.html

https://gerolfziegenhain.wordpress.com/2013/04/13/raspi-as-wspr-transmitter/

https://github.com/JamesP6000/WsprryPi

https://docs.google.com/document/d/1bLKEDmJvKQegqUwDXEy3V7wQTqupIfyg2LkN0dOuPY4/edit

https://qrp-labs.com/

https://www.rtl-sdr.com/raspberry-pirate-radio-fm-transmitter/

https://www.rtl-sdr.com/transmitting-datv-with-a-raspberry-pi/

http://rfsparkling.com/qrpi/

http://www.pabr.org/radio/leandvb/leandvb.en.html

https://www.rtl-sdr.com/a-pocket-datv-transmitter-and-receiver-with-raspberry-pi-limesdr-mini-and-rtl-sdr/

https://www.rtl-sdr.com/transmitting-dvbt-hdtv-raspberry-pi-rtl2832u/