NAEK TIMER – SMART VENDO CHARGING CONTROLLER ESP32-powered controller designed for reliable operation. Features a smart timer with countdown control and automatic charging based on purchased time. Compatible with tablet and cellphone chargers. Includes a charging indicator. Safety-focused design uses an optocoupler-isolated relay drive and a high-current relay for reliable AC switching. Plug-and-play wiring with labeled terminals. Supports a 3-wire LED frame with Power, Blinking, and Running modes. Blinking mode attracts attention while idle; Running mode shows active charging. Powered by a centralized 12V DC supply; compatible with universal pulse-output coin acceptors. Compact all-in-one design minimizes wiring and components. Efficient ESP32 power management provides stable operation and clean installation. Ideal for PisoTab and phone rental applications. Built for easy daily use.