PoESP32 and Wifi
-
The page for PoESP32 (SKU:U138 / https://docs.m5stack.com/en/unit/poesp32 ) clearly states
ESP32-WROOM-32U 240MHz dual core, 600 DMIPS, 520KB SRAM (without integrated 3D antenna, does not support WiFi wireless function)
But the ESP-AT firmware that ships with the device is configured to host an AP by default, and the device ships without an antenna or dummy terminator - is this safe for the ESP32-WROON-32U? I found no mention of this in the datasheet other than Espressif stating
external antenna connector (which needs to be
connected to an external antenna)without any reference to weather that is a requirement for function or safe operation, but most other RF devices have warnings about operating the radio without antenna or terminator/dummy load on the output to prevent damage.
AT+RESTORE OK +ETH_CONNECTED ready +ETH_GOT_IP:10.10.0.147 AT+GMR AT version:2.2.0.0(s-62ccc56 - ESP32 - Nov 12 2021 13:38:12) SDK version:v4.2.2-76-gefa6eca8b8 compile time(fc52c33):Mar 15 2022 15:59:59 Bin version:2.2.0(WROOM-32) OK AT+CWSTATE? +CWSTATE:0,"" OK AT+CWMODE? +CWMODE:2 OK
CWMODE:2 means the unit is in SoftAP mode by default, and it is confirmed by the prescense of the ESP_241B91 wifi network it creates.
https://docs.espressif.com/projects/esp-at/en/latest/esp32/AT_Command_Set/Wi-Fi_AT_Commands.html#parametersIs this the intended operation?
ed: formatting.