Smart Water Purifier System

This system is designed for advanced water purification. The UV lamp-based water filtering kills germs, making the water suitable for drinking. A pump-based design is suitable for reverse osmosis (RO) filtering, with a single MCU providing better control of the pump. The system adds intelligence and self-monitoring capabilities through Bluetooth^® Low Energy (LE) and/or Wi-Fi communication, which can alert users to the need for and request the replacement of filters and cartridges when required.

System Benefits​:

• Utilizes a high-efficiency, low-cost flyback SMPS design for reliable power management.
• Smartness and intelligence are added using the ultra-low power Wi-Fi + Bluetooth LE module.
• The load switch prevents AC/DC and other failures by controlling peak current flow and providing fault indication to the MCU.
• Onboard UV lamp ballast reduces the BOM count, optimizing space and cost.
• Matrix switching reduces the need for GPIOs for switch expansions.