Washing machines require support for motor controls, water level and temperature sensing, and user interface components that can withstand harsh environments. Standards-based, secure connectivity is also a must for appliances that will connect to a home network. Atmel® offers a rich array of microcontrollers and touch screen solutions that can power today's advanced washing equipment.

Features and Benefits

  • Atmel offers a wide range of 8- and 32-bit microcontrollers that are dedicated to motor control, providing support for BLDC motors, AC motors, and switched reluctance motors.
  • Atmel AVR® 32-bit microcontrollers embed a digital signal processor (DSP) and a floating point unit (FPU) in select models, to deliver the high performance required in advanced motor control solutions.
  • Many AVR microcontrollers include high-end PWM modules with dead-time insertion, fault management, synchronization with analog, making them a perfect choice for motor control.
  • AVR microcontrollers are offered in 105°C versions, as well as models up to 150°C, for a perfect match for washers with challenging temperature requirements.
  • Atmel provides an IEC 60730 Class B Library to support customers in the certification process, which dramatically speeds time to market.
  • Atmel AVR 32-bit microcontrollers feature a multi-layer databus and DMA controller that make them a perfect fit for HMI applications where high bandwidth is required.
  • Atmel has the industry's most robust touch sensor technology. With our Atmel QTouch® library, designers can add capacitive touch buttons, wheels and sliders at no additional cost.
  • Native 5V support is available on the Atmel megaAVR® and Atmel tinyAVR® microcontrollers. Many AVR 32-bit microcontrollers also offer 5V-tolerant inputs.
  • High integration solutions, such as motor control and HMI touch in a Single-chip, and high power IOs that can directly drive LEDs and buzzers, help reduce BOM.
  • ZigBee PRO compatibility enables standards-compliant connectivity and smart metering.
  • Node authentication capability supports smart meter infrastructure connections.
Washing Diagram

The Atmel QTouch® Library offers unrivaled HMI robustness in wet environments.

Atmel Products

Program ControlUser InterfaceConnectivitySecure AuthenticationMotor Control
megaAVR megaAVRxxPA AT90PWM

AVR XMEGA: Low Power High Performance

ARM-based Solutions: SAM9 Family
Buttons, Sliders and Wheels

QTouch library

maXTouch Touchscreen controller
Single-chip: (Microcontroller and Transceiver)


ZigBit Modules
Motor Control Products
Touch-enabled tinyAVR ATtiny20

Touch enabled AVR UC3 L Series

Reference Designs

[ + ] QTouch Robustness Reference Design

[ + ] Configurable PMSM Sensorless Field Oriented Control Reference Design

[ + ] IEC 60730 Safety Library Reference Design