The rapid advancement of financial technology has accelerated the widespread adoption of the Indonesian Standard Quick Response Code (QRIS) within the Micro, Small, and Medium Enterprises (MSME) sector. However, the use of conventional static QRIS still faces several operational challenges, including manual bank transaction verification and the risk of fraudulent payment confirmation receipts. To address these issues, a community service program was conducted through training and mentoring on the utilization of an Internet of Things (IoT)-based QRIS Soundbox at Rumah Kedelai Grobogan. The program involved 20 participants, consisting of 13 MSME owners, one supervising lecturer, and six assisting lecturers. The implementation methods included lectures, hands-on device demonstrations, real-time transaction simulations, and interactive discussions. The evaluation results indicated a significant improvement in participants' digital literacy and technical understanding, with 10 participants reporting that the training materials were very easy to understand and 7 participants expressing interest in receiving further mentoring. In conclusion, the integration of an IoT-based QRIS Soundbox proved effective in minimizing transaction fraud risks and accelerating payment verification processes, thereby supporting the digital transformation of local MSMEs.
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