Overview
Description
In this reference design, Renesas' Smart Water Shutdown Valve together with our Smart Water Leakage Sensor can automatically control a valve to start or stop water flow. This enables immediate countermeasures without the need for human intervention.
This solution can reduce or completely avoid damage caused by water spilling due to broken pipes via a shutdown of the water supply. In another use case, it can intentionally start water flow to water plants and stop the water when they have sufficient water level. This design utilizes the standard Message Queuing Telemetry Transport (MQTT) visualization tools to detect high moisture levels or water spills and shut down the valve using the DA16600MOD ultra-low power Wi-Fi and Bluetooth® Low Energy (LE) combo module.
Features
- Battery backup keeps the system alive when mains power fails
- Solar energy harvesting allows for sensor use without main power
- Ultra-low power DC/DC and Wi-Fi allow for long operation/standby time
- Bluetooth LE 5.1
- 2402-2480MHz operating frequency
- +4dBm power level
- Wi-Fi IEEE 802.11b/g/n, 1x1, 20MHz channel, 2.4GHz bandwidth
- Debug/programming connector with JTAG SWD Interface for DA16200 MCU
- 1 x 3.3 UART trace port connected to the DA166200 MCU
- Micro USB connector for wired charging of Li-ion battery (5V/400mA)
- 3.7V rechargeable Li-ion battery
- Connector for optional or external solar cell or external DC power supply (1V-5V)
- Step-up voltage regulator to ~10V
- Electric double layer to enable high power peaks needed to drive a solenoid
- HVPAK™ device with integrated H-bridge for valve control
- 2x general-purpose buttons connected to DA166600MOD
- 7x LEDs
Applications
Design & Development
Support
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