Goodme Frontend Team

Apr 27, 2026 · Mobile Development

Exploring BLE Printing in DingTalk Mini Programs: Implementation and Best Practices

This article provides a detailed engineering analysis of using Bluetooth Low Energy (BLE) within DingTalk mini programs to drive portable thermal printers, covering why BLE is chosen over classic Bluetooth, the GATT communication model, connection lifecycle management, ESC/POS command construction, packet splitting for the 20‑byte BLE limit, and practical image‑printing techniques, all illustrated with code examples and step‑by‑step guidance.