We describe and openly publish the first known browser-side implementation of the ITS Remote Human-Machine Interface (RHMI) client for European Smart Tachograph version 2 (Gen2 v2), conforming to EU Regulation 165/2014, EU 2016/799 Annex 1C Appendix 14 and the JRC specification "VU, Remote HMI specification & Transport protocol for ITS, version 1.0". Using only the Web Bluetooth API on Chrome Android/Desktop, we successfully establish a bonded BLE connection to a Continental DTCO 1381 unit, perform the LE Secure Numeric-Comparison pairing, drive the u-blox Low-Energy Serial-Port Service flow-control protocol, exchange ISO 14229-1 (UDS) frames, complete the PairRHMIclient / OpenRHMIsession handshake and successfully query the routine GetActiveVUWarningsOverview. The full source code is released under the GNU Affero General Public License v3.0-or-later.
Yannick Cerutti (2026) studied this question.