QuickPort Dongle

Small, powerful USB-C bridge that connects your iPhone to embedded devices.

What It Does

The QuickPort Dongle is the physical bridge between your iPhone and embedded hardware. It handles USB-to-Ethernet conversion and provides breakout pins for UART, I²C, and RS-485.

Plug it in, and it just works — no configuration, no driver installation.

Key Specs

  • • Connection: USB-C to iPhone
  • • Interfaces: UART, I²C, RS-485
  • • Protocol: CDC-ECM (USB Ethernet)
  • • Power: Bus-powered from iPhone

Technical Specifications

UART Interface

  • Baud Rates: 300 to 921600 bps
  • Data Bits: 7, 8
  • Parity: None, Even, Odd
  • Stop Bits: 1, 2
  • Flow Control: RTS/CTS (hardware), XON/XOFF (software)
  • Logic Levels: 3.3V (confirm)

I²C Interface

  • Modes: Master
  • Speed: Standard (100 kHz), Fast (400 kHz)
  • Addressing: 7-bit and 10-bit
  • Pull-ups: Onboard configurable
  • Logic Levels: 3.3V

RS-485 Interface

  • Differential: Full-duplex or half-duplex
  • Termination: Optional 120Ω onboard
  • Isolation: TBD (if any)
  • Max Distance: Up to 1200m (depending on baud)
  • Nodes: Up to 32 devices on bus

Power & Protection

  • Power Source: USB-C (from iPhone)
  • Current Draw: ~50-100mA typical
  • ESD Protection: Yes (confirm rating)
  • Overcurrent: Built-in protection
  • Indicator LED: Power/status

Connectors & Pinout

USB-C Port (Host)

Connects to your iPhone or iPad. Compliant with USB 2.0 specification, using CDC-ECM for Ethernet-over-USB.

Target Interface Connector

Standard 2.54mm (0.1") pitch header or JST connector (confirm specific type).

UART Pins:

  • • TX (Transmit)
  • • RX (Receive)
  • • RTS (Request to Send)
  • • CTS (Clear to Send)
  • • GND

I²C Pins:

  • • SDA (Data)
  • • SCL (Clock)
  • • GND
  • • VCC (3.3V)

RS-485 Pins:

  • • A+ (Differential +)
  • • B- (Differential -)
  • • GND

Important: Always verify voltage levels match your target device. The dongle operates at 3.3V logic. Use level shifters if your target requires 5V or other voltages.

Firmware Updates

The QuickPort Dongle supports over-the-air firmware updates via the QuickPort Terminal app.

When a new firmware version is available, you'll receive a notification in the app. Updates add features, improve performance, and ensure compatibility with the latest iOS versions.

Get Your Dongle

The QuickPort Dongle is available now. Includes cable and getting started guide.

Buy Now