PoESP32 and Wifi
notsonominal last edited by notsonominal
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:126.96.36.199(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.
Is this the intended operation?