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Smart Fish Tank

Overview

The smart fish tank automates water replacement using Renesas' MCU for motor control. This complete system can be monitored and controlled via a Wi-Fi-based mobile application. Additionally, it incorporates RGB LED string control enabled by CapSense®-based touch technology.

System Benefits:

  • Operates two water pump motors and one air pump motor using a single MCU.
  • Utilizes HVPAK to control two motors on a single I2C channel, effectively reducing CPU load.
  • Integrates an ultra-low power Wi-Fi module, upgrading the system to a "smart" configuration.
  • Achieves system implementation with a compact MCU featuring a capacitive touch sensing unit (CTSU).

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4:3 ratioConnector Arrow.34Connector Line.157Connector Arrow.42Connector Arrow.53Connector Line.136Connector Line.115Sheet.1Sheet.2Sheet.3Sheet.4WS052WS052WS052AC Power SourceSheet.20Alternating CurrentConnector Arrow230V AC230V AC230V ACLED StringLED StringLED StringConnector Arrow.28Connector Arrow.29Connected signals arrowConnected signals arrow.35WS001.36Haptics TouchSheet.38Sheet.39Sheet.40Sheet.41Touch KeySheet.44Sheet.45Sheet.46Sheet.47Sheet.48Sheet.49Sheet.50Sheet.51Sheet.52User InputUser InputUser InputVertical Wire Bundle 444Sheet.60Bi-directionalVertical Wire Bundle.63444Sheet.65Connected signals arrow.663.3V3.3V3.3V3.3V3.3V3.3VBi-directional.69Connected signals arrow.71Connected signals arrow.723.3V3.3V3.3VVertical Wire Bundle.74222Sheet.76Motor-DCSheet.78Sheet.79MMSheet.80Connector Arrow.81Motor-DC.82Sheet.83Sheet.84MMSheet.85Connector Arrow.87Motor-DC.88Sheet.89Sheet.90MMSheet.91Connector Arrow.93AntennaSheet.95Sheet.96Sheet.97Sheet.98Sheet.99Connector LineTransistor - NPNSheet.102Sheet.103Sheet.104Sheet.105Sheet.106FET n-channel.420Sheet.108Sheet.109Sheet.110Sheet.111Sheet.112Sheet.113NPNNPNNPNConnector Arrow.116Ground - EarthSheet.118Sheet.119Sheet.120Sheet.121Transistor - NPN.122Sheet.123Sheet.124Sheet.125Sheet.126Sheet.127FET n-channel.420Sheet.129Sheet.130Sheet.131Sheet.132Sheet.133Sheet.134 NPNNPNNPNConnector Arrow.137Ground - Earth.138Sheet.139Sheet.140Sheet.141Sheet.142Transistor - NPN.143Sheet.144Sheet.145Sheet.146Sheet.147Sheet.148FET n-channel.420Sheet.150Sheet.151Sheet.152Sheet.153Sheet.154Sheet.155NPNNPNNPNConnector Arrow.158Ground - Earth.159Sheet.160Sheet.161Sheet.162Sheet.1636V/12V6V/12V6V/12VWater Pump (Draining)Water Pump (Draining)Water Pump(Draining)Water Pump (Refill)Water Pump (Refill)Water Pump(Refill)Air Pump MotorAir Pump MotorAir Pump MotorHVPAKHVPAKHVPAKWi-FiWi-FiWi-FiMOSFETMOSFETMOSFETLDOLDOLDOAC/DC FlybackAC/DC FlybackAC/DC FlybackSheet.168MCUMCUMCUVDDVDDVDDPWMPWMPWMPWMPWMPWM PWMPWMPWMCTSUCTSUCTSUSPISPISPIGPIOGPIOGPIOI2CI2CI2C

MCU

RL78 Low-Power 8 & 16-Bit MCUs

HVPAK

HVPAK

MOSFET

Power MOSFETs

Wi-Fi

Wi-Fi MCUs

LDO

Linear Regulators (LDO)

AC/DC Flyback

Synchronous Rectifier Controllers

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