// GhostBridge · Wireless RS232 hardware
GhostBridge enclosure shown from three-quarter angles with USB-C and DB9 ends visible GhostBridge Rev 12 enclosure product sheet with exterior views

Cut the phone cable.
Keep a direct local connection.

GhostBridge is an assembled WiFi-to-RS232 bridge designed and verified as the wireless hardware companion for GhostTune.

Ships from the central United States · Typical fulfillment within 2–4 weeks · United States shipping

WiFiLocal access point
RS232DB9 serial interface
USB-CPower input
192.168.4.1Bridge address
35000TCP port

A transparent local bridge.

GhostBridge relays bytes between a local TCP connection and its RS232 interface. It is designed around GhostTune’s verified MicroSquirt workflow rather than broad, untested claims about every serial device.

Assembled hardware

The bridge arrives assembled for the published GhostTune setup. Connect the DB9 interface, provide USB-C power, and join its WiFi network.

Its own WiFi network

No router is required. The iPhone or iPad connects directly to the bridge’s local access point.

Local communication

ECU traffic stays on the direct local connection. GhostBridge does not provide a cloud relay or remote logging service.

Rev 12 enclosure

The production enclosure uses a 3 mm main wall, reinforced connector closures, four M3 screw rails, internal ribs, rubber-foot recesses, and debossed branding.

Three steps.

Connect and power

Connect the DB9 interface to the supported ECU serial connection and power GhostBridge through USB-C.

Join the bridge network

Choose the GhostBridge WiFi network from the iPhone or iPad WiFi settings.

Open GhostTune

GhostTune connects to 192.168.4.1 on TCP port 35000 and verifies the supported ECU profile.

Confirm the complete setup.

Published production configuration

  • Verified use: GhostTune with MicroSquirt hardware running MS2/Extra 3.4.4.
  • Interfaces: DB9 RS232 and USB-C power.
  • Local network endpoint: 192.168.4.1:35000.
  • Rev 12 enclosure outer dimensions: 97.95 × 77.01 × 22.55 mm.
  • The product is one assembled GhostBridge unit. Confirm the USB-C power source and DB9 cabling required by your installation.

Purchasing and compatibility

  • Other RS232 devices and software are not represented as verified merely because they use a DB9 connector.
  • Contact support@cruxresolve.com before ordering for any use outside the published GhostTune configuration.
  • Orders normally ship by USPS within 2–4 weeks.
  • United States shipping is offered through checkout; contact support before attempting an international order.
  • All sales are final. Report a verified defect or transit damage within seven days of delivery.
Compatibility matters: review the supported configuration and Terms of Sale before purchasing. A connector that physically fits does not by itself establish electrical or protocol compatibility.
Independent product: Third-party hardware and firmware names identify the tested configuration only. GhostBridge is not affiliated with, endorsed by, or sponsored by the owners or developers of those products or projects.

GhostBridge is available now.

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