Welcome to Disaster Radio Slovakia and Czech Republic

Cover image

Our connectivity

View the map of Bratislava

Our settings

Connect to the device. If you have pio configured, then run

pio device monitor

If not, connect to the device (disaster.radio …. network) and


In the console, configure frequencies and spreading factor:

/set sf 12
/set lorafrq 868
/set interval 300000

How and what to flash

Right now we are running compiled master branch (will be rc2). Build for TTGO2

Replace /dev/tty.usb-serial-* with your USB device name (this is macOs naming):

unzip esp_flash.bin.zip
esptool.py -p /dev/tty.usbserial-* erase_flash
esptool.py -p /dev/tty.usbserial-* --baud 460800 write_flash 0x00000 esp_flash.bin