Wokwi MCP Testing

Overview

Test ESP32 firmware in the Wokwi simulator through MCP tools. Verify boot and hardware state via serial logs and pin reads. The host cannot reach the sim's virtual network — there is no HTTP bridge.

When to Use

• Verify firmware boots (serial log shows WiFi IP, "HTTP server started")
• Check failsafe / initial pin state (pin read at boot)
• Debug "sim won't start" or Wokwi MCP tool errors
• Answer "does the web UI work on the sim?" — see mock-server technique below

Gotchas (learned the hard way)