components
Hardware Components
Arduino Uno
X 1
W5100 Ethernet shield
X 1
W5500 Ethernet shield
X 1
Arduino Mega2560
X 1
details
List of supported IDEs:
- Arduino
- Visual Studio Code with Platformio
- Microsoft Visual Studio with Visual Micro
List of supported MCUs:
- ATmega328P
- ATmega2560
- SAMD21 (ARM Cortex-M0+)
- STM32 (ARM Cortex-M)
- ESP8266
- ESP32-WROOM-32D
WebSocketServer compatible browsers:
- Chrome
- Edge
- Firefox
- Opera
Requirements
- Development board (confirmed working, other boards may or may not work):
- Arduino Uno (ATmega328P)
- Arduino Pro Mini (ATmega328P)
- Arduino Mega2560
- Arduino Zero / SAMD21 M0 (ARM Cortex-M0)
- STM Nucleo-64 (ARM Cortex-M)
- WeMos D1 mini (ESP8266)
- NodeMCU v3 (ESP8266)
- ESPDUINO-32 (ESP32-WROOM-32D)
- Ethernet module or shield (confirmed working):
- Arduino Ethernet Shield (W5100)
- Arduino Ethernet Shield 2 (W5500)
- WizNet W5500 module
Chat
Node.js server on Raspberry Pi (/node.js/chat.js)
Browser client (/node.js/chat-client.htm)
Arduino Uno client (/examples/chat/chat.ino)
Approx memory usage
simple-client.inoexample (without debug output, 128 bytes data buffer)
Ethernet.h (W5100 and W5500)
| Board | Program space | Dynamic memory |
|---|---|---|
| Arduino Uno | 24 648 bytes (76%) | 829 bytes (40%) |
| Arduino Mega2560 | 25 640 bytes (10%) | 857 bytes (10%) |
| Arduino Pro Mini | 24 648 bytes (80%) | 829 bytes (40%) |
| Arduino Zero | 30 596 bytes (11%) | 3 056 bytes (9%) |
documents
Code
Github 
COMMENTS