Arduino Day Philippines 2025 celebrated 20 years of Arduino and open source innovation at STI College Cubao.Key highlights included talks and workshops on robotics education, IoT applications, and prototyping techniques.The event featured a hackathon focusing on women's safety and fire prevention, along with futuristic concepts like mixed reality lab Flux.Speakers discussed a wide range of topics, from custom mechanical keyboards to blockchain-based payment systems for IoT.