Smart toilets continue to be a rapidly emerging market, with market share increasing worldwide. This system design demonstrates a high-end product with the following key features: seat/water/dry cooling and heating system, and a sterilization function, with all controls accessible via a remote.

The RX113 is a 32-bit microcontroller (MCU) single-chip solution for bidirectional human machine interface (HMI) and various peripheral devices. The RL78/G12 is ideal for sub-microcontrollers like remote controllers with compact, low power and high function general purpose. This design also features DC/DC and LDO power for the MCU, motor and other peripheral modules. The triac is used for the heating function. Lastly, the humidity and temperature sensor provides leading accuracy and excellent stability, and the photocoupler provides high performance in an ultra-small package. 

System Benefits

  • Single-chip MCU, reduced BOM cost and PCB size
  • Low-end MCU for remote design, widely used in various home appliances
  • High performance DC/DC, LDO, photocoupler, and temperature/humidity sensor for an integrated solution 
     

Related Products

Product Description Featured Document Ordering
       
Microcontroller      
RX113 Single-chip MCU solution for bidirectional human-machine interface (HMI) and interfacing Datasheet Select Specific Device
RL78/G12 Compact, low power, high function general-purpose microcontrollers ideal for sub-microcontrollers Datasheet Select Specific Device
       
LDO      
ISL80410 40V, Low Quiescent Current, 150mA Linear Regulator Datasheet Buy/Sample
       
Buck Regulator      
ISL85003 Highly Efficient 3A Synchronous Buck Regulator Datasheet Buy/Sample
       
Triac      
BCR16FM 600V - 16A - Triac Medium Power Use Datasheet Buy/Sample
       
Sensor      
HS3001 High-Performance Relative Humidity and Temperature Sensor Datasheet Buy/Sample
       
Photocoupler      
PS2911-1 High Ctr, 4-pin Ultra-Small Package Flat-Lead Photocoupler Datasheet Buy/Sample