_:nfb627389c9384a54a65c44791c06e571xb2
<http://schema.org/valueRequired>
"true"^^<http://www.w3.org/2001/XMLSchema#boolean>
<https://www.electroniclinic.com/esp32-lora-oled-ttgo-lora32-sx1276-with-arduino-range-test/>