In 2017 , i start make a board called ‘ESPrtk’ , which can linking GNSS data of RTK modules using ESP32 with many features on it, is High quality RTK positioning solution with low cost ESP32 . In 2.4.1 version, it support :
+NTRIP (Client/Server/ Client BLE).
+MQTT (Client/Master/ Client send back NMEA/ Client BLE).
+Wifi-TCP (Client/Master/ Client send back NMEA/ Client BLE).
+Wifi-UDP (Master/ Client send back NMEA/ Client BLE)…
+Bluetooth to Serial.(Client/Server)
+Ethernet LAN ENC28J60…
----Display: Neopixel, Led…
Currently, ESPrtk is in the process of evaluating performance so it may be too early to say this thing to all of you, but I can not be patient longer. I will come back with some tutorials how to use ESPrtk with Navspark module.