Practical guides for serial connectivity and mobile ECU tuning.
Learn how RS232 over WiFi works, how to connect legacy serial equipment to modern devices, how GhostBridge fits into a local TCP-to-serial workflow, and how GhostTune works with supported ECU configurations.
Can You Make an Old RS232 Device Wireless?
How a serial-to-WiFi bridge can modernize a compatible legacy connection while keeping the original equipment and protocol in service—and what to verify before connecting it.
Legacy RS232 guideTCP Serial vs Virtual COM Port: Which Does Your Legacy Software Need?
Use the host software to decide whether to connect directly to a TCP serial device server or place a compatible virtual COM-port layer in between.
Legacy software guideWiFi RS232 vs USB Serial Adapter: Which Fits Your Workflow?
Compare local WiFi and USB-to-RS232 for mobility, legacy COM-port software, TCP-capable clients, bench use, and equipment that needs a direct wired connection.
Serial transport comparisonDB9 Does Not Mean RS232: How to Identify a Serial Interface
Separate connector shape from electrical signaling and protocol before connecting equipment. Check pinout, RS232 vs RS485/TTL/CAN, control lines, and serial settings first.
Interface identification guideCNC RS232 Over WiFi: DNC and Program Transfer Considerations
How compatible legacy CNC controls can fit into a WiFi serial workflow, including DNC software, XON/XOFF vs RTS/CTS, cabling, serial settings, and when a hardened industrial server is the better choice.
CNC / DNC use-case guideHow to Connect Legacy RS232 Equipment to a Modern Computer
Compare USB serial adapters, WiFi serial device servers, TCP connections, and virtual COM ports while checking the electrical interface, cabling, and software requirements first.
Serial connectivity guideTCP to RS232 Explained: What a Serial Device Server Does
How transparent TCP-to-RS232 transport works, why the bridge does not need to understand the application protocol, and what still has to match for a reliable connection.
Serial device server guide3-Wire RS232 Explained: TX, RX, and Ground
What transmit, receive, and ground do, when a three-wire link is enough, and why equipment requiring RTS/CTS or other control lines needs more than basic serial transport.
RS232 fundamentalsRS232 DTE vs DCE and Null-Modem Cables Explained
Why two valid RS232 devices can still need TX/RX crossover, when straight-through wiring works, and how to avoid guessing from DB9 connector gender.
RS232 cabling guideCan You Tune a Car From Your Phone? What Mobile ECU Tuning Can—and Can’t—Do
A plain-language guide to real mobile ECU tuning: what a phone can control, what hardware is required, why compatibility matters, and when a laptop is still useful.
Mobile tuning guideCan GhostTune Tune MicroSquirt? Current Compatibility and Requirements
The current verified GhostTune setup for MicroSquirt, including MS2/Extra 3.4.4, iPhone and iPad, local WiFi communication, and GhostBridge GB-01.
Compatibility guideMicroSquirt WiFi Troubleshooting: Connected to WiFi but No ECU Data
A step-by-step troubleshooting guide for cases where an iPhone or iPad joins the wireless bridge but the tuning app shows no ECU data or the connection drops.
Troubleshooting guideMicroSquirt WiFi vs Bluetooth: Which Is Better for Mobile Tuning?
A practical comparison of WiFi and Bluetooth for MicroSquirt communication on iPhone or iPad, including compatibility, setup, internet access, and everyday use.
Comparison guideHow to Connect MicroSquirt to WiFi With an RS232 Bridge
A practical step-by-step guide to connecting a MicroSquirt ECU to iPhone or iPad through a local RS232-to-WiFi bridge, including connection checks and troubleshooting.
Setup guideHow to Tune a MicroSquirt From an iPhone: A Practical Wireless Setup Guide
How a supported MicroSquirt can be tuned from iPhone or iPad over local WiFi, including setup, live-data checks, backups, and ECU changes.
Practical guideHow GhostTune Handles ECU Changes
How temporary changes, permanent burns, compatibility checks, and result verification work together during supported ECU changes.
GhostTune guideWhat GhostTune Checks During Live ECU Use
How GhostTune checks supported compatibility, live data, backups, ECU changes, and returned results during normal use.
GhostTune guideGhostBridge Is Available Now
Current GhostBridge GB-01 availability, interface details, verified automotive use, and ordering information.
Product informationHow Wireless Serial Bridging Works
A plain-language explanation of local TCP-to-RS232 bridging, transparent byte relay, and practical compatibility limitations.
Technical guide