edatahub

Frequently Asked Questions

Software Download

Q1: Where do I download the Android / HarmonyOS app and the Windows desktop app?

Visit the Software Download page and click "Android APP & Windows Apps" to get the Shangling mobile (Android / HarmonyOS) and desktop sling (Windows) installers.

Q2: Which systems does the mobile app support?

Shangling Mobile supports Android and HarmonyOS; some capabilities are also available as a WeChat mini program. See the Software Download page.

Product Usage

Q3: Shangling Mobile Bluetooth can't find devices?

  • Check that system Bluetooth is on;
  • Allow the Bluetooth and "Nearby devices" permissions in the app / WeChat settings (common on Android);
  • Confirm the edatahub ED device is in discoverable (pairing) mode.

Q4: Not reading data over Modbus?

  • Whether the slave address is correct;
  • Whether the register address is correct;
  • Whether the device supports the Modbus protocol;
  • Whether the serial parameters (baud rate / parity) match the device.

Services & Custom Development

Q5: How do I integrate the debugging capability into my own system?

See Services & Custom Development — based on edatahub ED / EC hardware and the SDK Docs, you can integrate with zero hardware R&D.

Purchasing & Business

Q6: How do I purchase hardware products?

Search for the edatahub store on Taobao, or shop at the edatahub Taobao store for ED / EC series hardware (ED-N2-RS485, EC-N1-RS485, ED-SLink).

Q7: How do I activate data services?

Contact the edatahub sales team for onboarding details.

Technical Support

Q8: How do I get technical support?

  • Email: sskj2025@qq.com
  • Tel: 17764051373

Q9: Is there usage documentation?

Yes — visit the Documentation Center for product manuals, API, and SDK documentation.