Old revisions Add to book Export to PDF Fold/unfold all Book Creator Add this page to your book Book Creator Remove this page from your book Manage book (0 page(s)) Help This is an old revision of the document! Version 1.2.4 (V1.2.4_211112) Release 2021-11-17 New Features and Improvements 1. Supports a new BLE (Bluetooth Low Energy) chip. The BLE chip parts of the hardware have been changed, and the firmware has been upgraded to be compatible with both the existing and new BLE chips.