autobots · hardware · ESP32 · IoT · WebSocket

WiFi Panel ESP32

Turns an ESP32 into a real-time monitoring panel accessible from any browser on your network. The ESP32 connects to your WiFi, serves a web interface from SPIFFS and opens a WebSocket that continuously broadcasts system data as JSON: IP, RSSI, RAM, internal temperature, uptime and more.

Active C++ PlatformIO ESP32 WebSocket SPIFFS JSON

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SSIDHomeNet_5G

Local IP192.168.1.50

Gateway192.168.1.1

MACA4:CF:12:B3:7E:01

Signal (RSSI)-62 dBm

Free RAM186 KB

Temperature42.1 °C

Uptime00:14:32

What it sends via WebSocket

SSID of the connected WiFi network
Local IP assigned to the ESP32
RSSI — signal strength in dBm
Device MAC address
Free and used RAM in real time
Free sketch space in flash
Internal chip temperature
Uptime in seconds since boot

Hardware & software

ESP32 Dev Module (any variant)
USB-C or micro-USB cable
2.4 GHz WiFi network
Visual Studio Code + PlatformIO extension
SPIFFS filesystem for the embedded web interface
Modern browser (Chrome, Edge, Firefox)

Project structure

src/main.cpp — ESP32 code (C++)
data/index.html — web panel (uploaded as SPIFFS)
platformio.ini — platform config

How to deploy

Edit SSID, password and static IP in main.cpp
Upload the web: PlatformIO → Upload Filesystem Image (press BOOT on the ESP32 when prompted)
Upload firmware: click the → arrow in PlatformIO
Open Serial Monitor and copy the printed IP
Open http://<IP> in your browser

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