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About
FieldBus Toolkit is the essential utility for embedded engineers and PLC programmers.
Debug Modbus TCP, MQTT, HTTP, and socket communications directly from your mobile device.
[Key Features]
1. Multi-Protocol Support
- Modbus TCP Client
- MQTT Client (Publish/Subscribe)
- HTTP REST Client (GET, POST, PUT, DELETE)
- TCP/UDP Client & Server (Echo/Broadcast)
2. Data Visualization
- Send and receive data in ASCII or HEX format.
- Real-time communication logs.
3. Efficiency Tools
- Save frequently used commands as Macros for quick access.
- One-touch data transmission.
4. Developer Friendly
- Perfect for testing Arduino, ESP32, Raspberry Pi, and industrial PLCs.
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What's New in FieldBus Toolkit
1.0.5
October 22, 2026
[Device Support & Improvements] - iPhone Duo Support: When unfolded, the tool screens, bottom tabs and ad banner now stay clear of the side control bar, and the scroll bars sit at the edge of each card. - Landscape mode: You can now use the app in landscape on unfolded iPhone Duo and iPad. - Fixed an issue where the ad banner could fail to appear on unfolded iPhone Duo. - Content now stays clear of the notch, camera cutout and system bars, so nothing is hidden at the screen edges. - Minor bug fixes and performance optimizations.
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Subscriptions & In-App Purchases
$1.99
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