Two way communication between two ESP32 for a remote control device

[mattygsa]

Trying to figure out what would be the best protocol for having fast and reliable two-way comms between two esp32s. They will not need to communicate further than about 2 meters, so range is no issue. The remote will need to send throttle commands with absolute minimal lag and the receiver will send back some temperature and battery voltage information. Power consumption is no real concern. They need to communicate independently, without a wifi router or network connection of any sort. (Will be out to sea)

Trying to figure out if I use wifi, bt classic, ble or esp-now or what!?

Any help would be much appreciated. Thanks

[chegewara]

I cant say about classic bt or esp-now, but with BLE you can have at best 6-10ms delay.
There is also wifi LR mode.
https://docs.espressif.com/projects/esp ... g-range-lr