ESP32 Forum

Has anyone had any luck using the espnow demo from the master github repo (examples/wifi/espnow) ?

I have two devices running the demo and I continually receive an error status of 1 from the send callback. Occasionally, like one out of every 50-100 transmission attempts, one of the devices will receive a packet.

Just curious if anyone else has had any luck. I need a low latency connection for quick data transfers (only 4-8 bytes every 10 milliseconds or so) and BLE gives me a latency of around 15 ms.

This ended up being a hardware issue. The original esp32-thing dev boards I purchased from Sparkfun just don't work correctly. This could be that the board uses a 26 Mhz crystal or something else. I bought new boards from Adafruit that use the ESP-WROOM-32 module and the sample espnow demo works out of the box, no issues.

I am now in a similar situation. Can you share what kind of latency you ended up getting?

Thanks,

Alberto