SerialCloud: Serial Gateway

SerialCloud: Serial Gateway

SerialCloud
Sep 8, 2026
  • Everyone

  • Android OS

About SerialCloud: Serial Gateway

Connect USB Serial devices to MQTT with rules, routing and automation

SerialCloud : Serial Gateway is a powerful Android Serial to MQTT gateway for connecting USB serial devices to modern IoT systems.

Connect your USB serial devices to MQTT and build bidirectional communication flows directly from your Android phone.

SerialCloud : Serial Gateway can work as a standalone serial terminal, a Serial-to-MQTT bridge, an MQTT-to-Serial bridge, or a programmable automation gateway.

KEY FEATURES

• USB Serial connectivity

Connect USB serial devices using Android USB OTG.

• Serial to MQTT

Forward serial data to any MQTT topic.

• MQTT to Serial

Receive MQTT messages and send them directly to your serial device.

• Bidirectional communication

Build two-way communication between serial devices and MQTT clients.

• Custom MQTT broker support

Connect to your own MQTT broker using your preferred host, port, TLS, username and password.

• Conditional flows

Create rules that inspect incoming serial or MQTT messages and perform actions when conditions match.

• MQTT topic filters

Use MQTT topics and standard + and # wildcards for flexible routing.

• Payload parsing and formatting

Work with RAW, HEX, ASCII, Line and JSON data formats.

• Background gateway

Keep SerialCloud : Serial Gateway running as a background gateway while your phone is connected to your serial hardware.

• Automatic reconnection

Recover from temporary USB, network and MQTT connection interruptions.

• Serial terminal

Monitor RX and TX traffic and manually send ASCII or HEX data.

• Logs and diagnostics

Monitor serial, MQTT, rule and error events with filtering, search and CSV export.

• Push notifications

Trigger Android notifications when conditional flows match.

• Device profiles

Save and switch between multiple serial configurations.

FLEXIBLE MQTT

Use SerialCloud : Serial Gateway with your own MQTT infrastructure or connect through your preferred MQTT server.

Configure TLS, authentication, client IDs and custom topics without being locked to a specific broker.

WHO IS SerialCloud : Serial Gateway FOR?

SerialCloud : Serial Gateway is useful for developers, makers, IoT enthusiasts, electronics projects, automation systems, USB-to-RS232/RS485 devices and anyone who needs to connect serial hardware to MQTT.

PRIVACY

SerialCloud : Serial Gateway is designed to keep your device communication under your control. Custom MQTT connections use the broker configuration you provide.

Some features may require additional Android permissions or compatible USB hardware.

SerialCloud : Serial Gateway : is continuously improving with new protocol, automation and gateway capabilities.

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What's new in the latest

Last updated on Sep 8, 2026
Minor bug fixes and improvements. Install or update to the newest version to check it out!
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Videos and Screenshots

  • SerialCloud: Serial Gateway poster
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SerialCloud: Serial Gateway APK Information

Latest Version
Varies with device
Category
Tools
Developer
SerialCloud
Available on
Content Rating
Everyone
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