Hi,
Thanks for the in dept reply.
NMEA data can very easy be processed to Serial data,
The reason I try to avoid using cellular are the costs.
You would need a GPRS data (pre-paid) for each device.
Wi-Fi is hardly an option due to the amount of Access Points on the regatta venues.
I hoped using 868 MHz I might avoid returning costs.
Making sailboat tracking (for regatta’s) less expensive and more accessible.
When not using 868, but other frequencies, I might be in violation of local laws and although the transmission power is low, it will be a matter of time before you will be penalized.
I have contacted a (Chinese) supplier of Lora based tracking devices that replied that they can modify the firmware of their Lora(wan) tracking devices to send location data every second (after motion is detected)
But only on 433 and not 868.
Thanks again for the quick reply