<![CDATA[People with visual impairment face barriers in cash transactions, particularly in identifying banknote denominations and verifying authenticity, which may reduce independence and increase the risk of fraud. This community service program aimed to strengthen users’ competence through individual, home-based education and mentoring on an optical–UV banknote denomination and authenticity detector with accessible feedback. The program was implemented in collaboration with PERTUNI and ITMI, Kebumen Branch, during October–December 2025. The intervention comprised: (1) needs mapping and baseline assessment, (2) structured training using a concise learning module, (3) hands-on practice using real-world transaction scenarios, and (4) follow-up mentoring. Outcomes were evaluated using a pre–post knowledge test, a practical performance checklist, and a usability/satisfaction questionnaire. The results indicated an increase in the mean knowledge score from 55.1 to 80.7 (Δ = 25.6 points; 47.0% improvement) and an improvement in successful denomination-identification task completion from 60.7% to 90.0%. This approach is relevant for individualized mentoring programs when group-based training is difficult to implement due to accessibility constraints.]]>
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