<https://www.dronecosmo.com/products/radiomaster-r84-4ch-frsky-d8-compatible-pwm-receiver>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.dronecosmo.com/products/radiomaster-r84-4ch-frsky-d8-compatible-pwm-receiver>