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Silicon Labs Launches Controller to Shorten Development Time for Capacitive Sensing Applications
Published2015.12.10 18:08Low-power fixed-function devices, removal of firmware complexity
Silicon Labs announced the launch of TouchXpress™, a family of fixed-function controllers that provides the fastest and easiest way to add low-power capacitive touch interfaces to embedded designs.
Silicon Labs' robust CPT007B and CPT112S TouchXpress controllers do not require time-consuming firmware development processes and provide a simple turnkey solution for adding aesthetically pleasing touch-based user interfaces to a wide range of products, including home appliances, white goods, home appliances, lighting control, medical equipment, and measurement/control panels.
Embedded developers can quickly and easily implement and operate their capacitive touch applications using the TouchXpress evaluation board, advanced configuration environment, and profiling software tools available within Silicon Labs' Simplicity Studio environment.
New fixed-function device
To meet the growing demand for easily implementable capacitive sensing and touch functions in embedded systems, Silicon Labs has launched two TouchXpress product families:
With the CPT007B GPIO switch replacement device, developers can quickly replace up to seven mechanical buttons with capacitive touch sensors without developing firmware. The GPIO interface directly provides the on/off sensor status to the host processor.
The CPT112S capacitive I2C device can easily add capacitive sensing capabilities for touch-based interfaces.
Silicon Labs announced the launch of TouchXpress™, a family of fixed-function controllers that provides the fastest and easiest way to add low-power capacitive touch interfaces to embedded designs.
Silicon Labs' robust CPT007B and CPT112S TouchXpress controllers do not require time-consuming firmware development processes and provide a simple turnkey solution for adding aesthetically pleasing touch-based user interfaces to a wide range of products, including home appliances, white goods, home appliances, lighting control, medical equipment, and measurement/control panels.
Embedded developers can quickly and easily implement and operate their capacitive touch applications using the TouchXpress evaluation board, advanced configuration environment, and profiling software tools available within Silicon Labs' Simplicity Studio environment.
New fixed-function device
To meet the growing demand for easily implementable capacitive sensing and touch functions in embedded systems, Silicon Labs has launched two TouchXpress product families:
With the CPT007B GPIO switch replacement device, developers can quickly replace up to seven mechanical buttons with capacitive touch sensors without developing firmware. The GPIO interface directly provides the on/off sensor status to the host processor.
The CPT112S capacitive I2C device can easily add capacitive sensing capabilities for touch-based interfaces.
It provides up to 12 sensor inputs. The I2C interface provides an easy way to track the state of touch sensors and can wake up a sleep-state host processor via an interrupt pin after a proximity touch is detected.
Both capacitive touch controller products support advanced features such as moisture resistance, proximity wake, touch time-out, mutually exclusive touch qualifiers, and buzzer feedback for improved usability. The CPT112S device also offers a slider control option.
No firmware or capacitive sensor expert needed
Based on Silicon Labs' proven, patented, and recognized full-capacity sensing technology, the TouchXpress controller provides the industry's best drop-in solution, enabling embedded designers of all levels—from entry-level to skilled advanced technicians—to easily develop touch interfaces. Implementing a capacitive touch interface based on TouchXpress technology does not require specialized knowledge in firmware development, programming, or capacitive sensing.
It does not require external components, and developers can easily set and evaluate all capacitance sensing parameters using Silicon Labs' simple, intuitive GUI-based Xpress Configurator and capacitance sensing profiler.
The TouchXpress controller's superior energy efficiency not only extends battery life but also enables the use of smaller batteries suitable for wearables and other portable devices. Its excellent Signal-to-Noise Ratio (SNR) provides better reliability and touch performance, which is critical in measurement and control applications.
The features of this product include ultra-low power: it supports a sleep current of less than 1 µA and an active current reduced to 200 µA, as well as 12 capacitive sensors. Additionally, robust moisture resistance prevents touch errors caused by sweat, water droplets, and water vapor.
Sample and production quantities of the TouchXpress controller are available in a 3 mm x 3 mm QFN20 package. For the CPT007B device, the price is $0.83 per unit for a quantity of 10,000. For the CPT112S device, the price is $0.72 per unit for a quantity of 10,000. SLEXP8007A and SLEXP8008A evaluation kits are available for $19.00 each.
Both capacitive touch controller products support advanced features such as moisture resistance, proximity wake, touch time-out, mutually exclusive touch qualifiers, and buzzer feedback for improved usability. The CPT112S device also offers a slider control option.
No firmware or capacitive sensor expert needed
Based on Silicon Labs' proven, patented, and recognized full-capacity sensing technology, the TouchXpress controller provides the industry's best drop-in solution, enabling embedded designers of all levels—from entry-level to skilled advanced technicians—to easily develop touch interfaces. Implementing a capacitive touch interface based on TouchXpress technology does not require specialized knowledge in firmware development, programming, or capacitive sensing.
It does not require external components, and developers can easily set and evaluate all capacitance sensing parameters using Silicon Labs' simple, intuitive GUI-based Xpress Configurator and capacitance sensing profiler.
The TouchXpress controller's superior energy efficiency not only extends battery life but also enables the use of smaller batteries suitable for wearables and other portable devices. Its excellent Signal-to-Noise Ratio (SNR) provides better reliability and touch performance, which is critical in measurement and control applications.
The features of this product include ultra-low power: it supports a sleep current of less than 1 µA and an active current reduced to 200 µA, as well as 12 capacitive sensors. Additionally, robust moisture resistance prevents touch errors caused by sweat, water droplets, and water vapor.
Sample and production quantities of the TouchXpress controller are available in a 3 mm x 3 mm QFN20 package. For the CPT007B device, the price is $0.83 per unit for a quantity of 10,000. For the CPT112S device, the price is $0.72 per unit for a quantity of 10,000. SLEXP8007A and SLEXP8008A evaluation kits are available for $19.00 each.
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