In some indoor areas, the environment is very moist, making it difficult to dry clothes efficiently. With today’s technology, there are now additional features for electronic-type dryers, like remote and voice control, and a local touch panel that automatically turns off to save energy.

This reference design provides a cost optimized RX130 32-bit microcontroller (MCU) with a capacitive touch sensing unit (CTSU). The buck regulator and LDO power the MCU and other peripheral modules. A humidity and temperature sensor and half-bridge drivers are also integrated into this solution. Voice recognition and Wi-Fi modules are used for smart home applications.

System Benefits

  • Cost optimized RX130 MCU provides capacitive touch for touch control 
  • Humidity and temperature sensor with high accuracy and excellent stability 
  • Low cost and high performance, multiprocessor (MP) level voice recognition module

System Block Diagram

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Related Products

Product Description Featured Document Ordering
Microcontroller      
RX130 Cost optimized high performance RX microcontroller with enhanced touch key function and 5V operation support Datasheet Select Specific Device
RL78/G12 Compact, low power, high function general-purpose microcontrollers ideal for sub-microcontrollers Datasheet Select Specific Device
       
Buck Regulator      
ISL85003 Highly Efficient 3A Synchronous Buck Regulator Datasheet Buy/Sample
ISL854102 Wide VIN 1.2A Synchronous Buck Regulator Datasheet Buy/Sample
       
Half-Bridge Driver      
HIP2103 60V, 1A/2A Peak, Half-Bridge Driver with 4V UVLO Datasheet Buy/Sample
       
Sensor      
HS3003 High-Performance Relative Humidity and Temperature Sensor Datasheet Buy/Sample