Dual Communication - jaylikesbunda/Ghost_ESP GitHub Wiki

Dual Communication

Connect two ESP32 devices with wires to control one from the other. Since ESP32s only have one radio, this allows you to have full control and functionality remotely while one still hosts the AP continously for control.

How It Works

  • Wire two ESP32s together (UART connection)
  • They auto-discover and connect on boot
  • Send any GhostESP command to the other device
  • No manual connection needed in most cases

Wiring

Connect the devices with 3 wires:

  • TX of Device A → RX of Device B (GPIO 6 → GPIO 7 by default, 17 → 16 on base ESP32 models)
  • RX of Device A → TX of Device B (GPIO 7 → GPIO 6 by default, 16 → 17 on base ESP32 models)
  • GND → GND

Both devices need Power.

Basic Usage

Once wired and powered on, devices automatically find each other. Use these commands:

  • commstatus - Check if connected
  • commsend <command> - Send any command to the other device
  • commdisconnect - Disconnect if needed

Examples

# Check connection
commstatus

# Send commands to the other device
commsend scanap
commsend attack -d
commsend beaconspam -r
commsend capture -probe

Web Interface

Use the Dual Comm tab for:

  • Connection status with visual indicator
  • Quick command buttons organized by category
  • Terminal to send custom commands
  • Pin configuration if you need different GPIO pins

Changing Pins

Default pins are TX: GPIO 6, RX: GPIO 7 on base ESP32 models they are 17 and 16. To change them:

commsetpins 4 5

Pin changes are saved and you can't change them while connected.

Manual Connection (if needed)

If auto-connection fails, you can manually connect:

commdiscovery          # Check discovery status
commconnect ESP_A1B2C3 # Connect to specific device

Device names are auto-generated like ESP_A1B2C3 based on MAC address.

Troubleshooting

Not connecting?

  • Check wiring (TX→RX, RX→TX, GND connected)
  • Make sure both devices are powered, and reboot them simultaneously
  • Wait 30 seconds for discovery
  • Run commstatus to check

Commands not working?

  • Verify connection with commstatus
  • Use exact GhostESP command syntax

Use Cases

  • Hidden device control: Hide 2 ESP32s and control them remotely with full functionality through the WebUI!
  • Coordinated attacks: Both devices attack different targets simultaneously

Technical Details

  • Protocol: Custom UART at 921,600 baud
  • Auto-discovery: Every 2 seconds
  • Master/slave: Device with "larger" name becomes master but you can send and recieve commands from both devices
  • No encryption: Commands sent in plain text
  • Physical access required: Need wire connections
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