Breathing-Sirenas ESP32 - Minifan -MQTT server Use a portable battery. Connect it with the breathingmask via micro-usb. Put the breathing-mask on your face. Make a wifi-hotspot on your phone Name it: Accessphone , with the same as password: Accessphone You will be connected with a mqttt-server, made on DigitalOcean. There all frequencies are gathered and used to produce sirena-sounds, converted by different oscillators. Breathing-Sirenas will share all sirenas breathing in the world. Breathing-Sirenas_two_masks.mov
