Electronics Technology


Panasonic releases its updated touch-sensitive knob

27 July 2022 Electronics Technology

Panasonic, in conjunction with Microchip, has launched an update to its existing Magic Knob, a capacitive knob ready for standard touch sensors for use in controlling automotive information displays.

As the size of interactive displays increases many automotive and industrial touch HMI designers are looking to merge the benefits of a mechanical rotary encoder input with the flexibility of these modern multi-touch displays. Panasonic has released its solution to this, a rotary knob combining intelligent capacitive and mechanical operation as well as providing haptic feedback.

Microchip developed the maXTouch Knob on Display (KoD) controller as the first automotive-grade touchscreen controller family to natively support the detection and reporting of capacitive rotary encoders, as well as mechanical switches on top of a touch panel. This controller is at the core of Panasonic’s Magic Knob technology.

The KoD technology eliminates the need for custom touch sensor patterns, providing designers with the ability to easily implement a different knob count, shape and position to accommodate a variety of end user products. The customised configurations are adjustable without changing the embedded firmware of the maXTouch KoD touch controller, leading to a faster and more flexible development cycle. The maXTouch KoD controller allows designers to keep the comfort of a rotary encoder input device but combine it with a modern and innovative interior design using smart surfaces and multi-touch displays.

An added benefit designers can expect to experience is the ease of building a sealed human machine interface (HMI) module, which is increasingly popular for in-home appliance and industrial applications. Using a knob on a display will also increase safety for the end user by removing the need to look at the display to make an adjustment while driving.

“Modern user interfaces commonly use multi-touch displays, removing mechanical keys for cutting-edge designs. Yet, functions like temperature control or audio volume adjustment remain best controlled though a rotary encoder,” said Clayton Pillion, vice president of the human machine interface business unit at Microchip Technology. “The new maXTouch KoD technology offers the benefits of both worlds by providing the support of a capacitive rotary encoder with a turnkey touch controller family and a comprehensive suite of dedicated tools for a fast implementation.”

The newly developed MPMK (Microchip Panasonic magic knob) allows placement of the knob anywhere on the touch panel. In addition to the rotating operation, it also comes with a vertical ring push function. Both functions can be customised to provide haptic feedback, offering the customers an ideal click feeling sensation. This haptic fine-tuning can be successfully engineered due to a profound mechanical design know-how, based on the long-term development of mechanical encoders.

Use of the Magic Knob is good news in terms of user friendliness and production efficiency. The knob even works for any kind of non-display application – as long as there is a capacitive sensor behind the respective flat or glass panel, the MPMK can be operated the same way.


Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

Precision analogue microcontroller
Altron Arrow DSP, Micros & Memory
The ADUCM356 series of precision analogue microcontrollers from Analog Devices controls and measures electrochemical sensors including current, voltage, and impedance measurements.

Read more...
Microchip earns certification in vehicle cybersecurity
Altron Arrow News
Microchip Technology’s corporate processes associated with specific automotive work products have recently been audited by a third party, UL Solutions, and certified as compliant to ISO/SAE 21434.

Read more...
Transmitting power to remote places
Altron Arrow Editor's Choice Power Electronics / Power Management
The new single-pair power over Ethernet (SPoE) allows for power and data to be transmitted over longer distances of up to 1000 metres.

Read more...
New series of all-purpose microcontrollers
Altron Arrow DSP, Micros & Memory
NXP has released its MCX A14x and A15x series of all-purpose microcontrollers, which are part of the larger MCX portfolio that shares a common Arm Cortex-M33 core platform.

Read more...
Shorten your design cycle
Altron Arrow DSP, Micros & Memory
The CANHUBK344 evaluation board from NXP is ideal for mobile robotics and industrial automation applications.

Read more...
High-speed PIN diode
Altron Arrow Analogue, Mixed Signal, LSI
Vishay’s new high-speed Silicon PIN diode is able to detect both visible and near infra-red radiation over a wide spectrum range from 350 to 1100 nm.

Read more...
The next evolutionary step in customisable logic
Altron Arrow DSP, Micros & Memory
To address the expanding need for increasing levels of customisation in embedded applications, Microchip Technology is offering a tailored hardware solution with the launch of its PIC16F13145 family of microcontrollers.

Read more...
CNH data output devices for AI applications
Altron Arrow Test & Measurement
STMicroelectronics’ CH family of time-of-flight sensor devices feature compact and normalised histogram (CNH) data output for artificial intelligence applications requiring raw data from a high-performance multizone ToF sensor.

Read more...
LTE 4G compact low profile compact antenna
Altron Arrow Telecoms, Datacoms, Wireless, IoT
The Platch LTE 4G compact low-profile antenna is designed for pit lid, ground level, and height-critical LTE/4G applications.

Read more...
Wireless MCU with 15 years of battery life
Altron Arrow DSP, Micros & Memory
ST has integrated an industry-unique ultra-low-power radio which the MCU can power-down to save energy while listening continuously for a wake-up signal.

Read more...