Multi-Color Lighted Solid State Push Button

The Multi-color Lighted Solid State Push Button is a Mechanical, Electrical, Firmware and Software HMI product developed for automotive applications. Typical Automotive Applications for Solid State Lighted Button. The multi-color lighted solid state push button is a standalone 5V power switch with pre-programmed color feedback during power up and I2C communication bus to interface to the main system board.

The push button has no moving mechanical parts that can wear out over time. There are no moving sealing components and no moving mechanical internal switch components.

The device comes calibrated from the factory ready to physically integrate into a system. The push button does not come with any pre-programmed color state response in active mode.

  1. Push-Push Panel Opener
  2. Charge Port Door Operator Button
  3. Trunk/Frunk Unlatch Button
  4. Door Unlatch Button
  5. Window Control Button

Features: Press Activated – operable with gloves, tools, etc.

  • Actuation Actuating Force: Set at 5N / Active Touch Area: 10mm.
  • Response Time 10ms.
  • RGB multi-color illumination & pattern programmability.
  • Integrated LIN Bus Transceiver.
  • Flush surface mount.
  • Sealed to IP65.
  • Shock protection, IK04.
  • Rated for 25K cycles.
  • RoHS Compliant.

The expected operation of the Push Button after installation is to connect to a single low power supply for extremely low power operation and to allow it to enable the operation of a system HMI function with diagnostic and other information being presented to the end user via the multi-color LED pattern when or if the main system is awake.

  • Enclosed plastic button housing.
  • Retaining Clip and Waterproofing O-Ring Seal.
  • Adjoined cable with connectors to main system.
  • The system is expected to provide with car battery power with 250uA of current source capability to enable low power touch sensing operations.
  • Once a press is sensed, a signal to the main system board allows the system to enable the appropriate system function which may also trigger the system to send signals to drive or control the LED lighting functions.

When car battery supply is applied to the VBAT supply pin, to source more than 6mA, the Push Button will boot and begin normal sensing operations. If there is insufficient voltage applied or if the 5V power supply is unable to source the 6mA average required for boot, the Push Button will not operate correctly. In the event this happens, disconnect the Push Button and reconnect it only after the power supply issue is resolved.

The Push Button comes pre-programmed with firmware from the factory. Once booted after a short time delay the button will begin actively sensing. It internally alternates rapidly between a sleep and sensing state which we refer to as the Operational Data Rate (ODR) Cycle. This allows the Push Button to consume a very low average current while still providing responsive sensing functionality. The Push Button will remain in this state unless a button press is detected. When a button press is detected, the Push Button will pull-down signal to the P_SW pin. When another button press is detected in this condition, the switch would stop pull-down the P_SW pin, and the P_SW pin would be pull-up by the internal resistor.

Ubiquitous Touch UI / UX for Smart Surfaces

Ideal for applications on any material (metal, plastic, glass, wood, leather…), thickness, no physical cutouts / improve aesthetics, immune to contaminants, easy system integration, fundamentally waterproof, water rejection, glove detection and learns intended touches, rejects accidental touches.

Virtual Button Experiences: These include Touch, pinch or swipe capability, Power, volume & menu functions, Maintain sleek housing design and Reduce waterproofing & manufacturing costs.

Ubiquitous touch Interface across product lines, sense through thick materials (steel, glass, plastic), easy integration and production calibration, no cross talk between sensors a nd cost effective.

TouchPoint Z Features

  1. World’s smallest ultrasound sensor
  2. One sensor = One button
  3. Sensor transducer and ASIC all-in-one chip
  4. Designed to be standalone sensor to Host
  5. Embedded MCU with Touch Point Algorithm
  6. Bootloader from internal One Time Memory (OTP)
  7. Configurable Power Management & Frame Rate
  8. I2C operation
  9. 4mm x 2.6mm x 0.49mm LGA package size

 

 

Benefits over mechanical switch

  • Fully integrated, programmable digital button
  • Standalone module design: Easy system integration for manufacturability
  • Configurable force thresholds for each button
  • Configurable button size based on module size
  • Solid-state button: immune to wear out since no mechanical moving part
  • Recognition of touch patterns (single, double, triple taps, press & hold, etc.)
  • Direct interface to external haptic driver/actuator
  • RGB backlighting integrated into module

Solid State Button Solution – Use Cases

  1. Outdoor mechanical button replacement
  2. Push-Panel Surfaces
  3. Outdoor Charging Stations
  4. Energy Storage Systems
  5. Machine control panels
  6. Home appliances
  7. Scooters, eBikes, RTV, ATV,…

Benefits

  1. Force Detection capacitive overly sensitive; force allows for multiple programmable force thresholds to eliminate capacitive false triggers
  2. No moving parts  superior reliability, inherently waterproof
  3. AC strain sensor immune to assembly stress and product aging
  4. RGB color and intensity programmable capability based on-chip MCU
  5. Screw-in or Clip-in housing options

Summary

  • Multi-mode sensing technology
  • NTE Convolutional Neural Network
  • Fundamentally mitigates false triggers
  • Unlimited surface material options
  • World’s smallest ultrasound sensor
  • Novel PMUT Transducer Architecture
  • One sensor fits all customer implementations
  • Adding haptics driver for all-in-one solution

For more information https://www.ultrasensesys.com/.

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