The development of RoboTouch sensor technology began in a robotics lab in the early 1990’s with a dream to give robots the “Sense of Touch”. Today, after years of refinement of the sensor design and digital interfaces, RoboTouch sensors are ready to be integrated into every robotic gripper in the market today.

The RoboTouch patented capacitive tactile sensing technology is the highest performance embedded tactile sensing technology for giving industrial and consumer robotic grippers or Humanoid robots the “sense of touch”. 

It is based on PPS Digitacts sensor technology that features embedded digital output ideal for OEM integration into the gripper. The sensors comprise of multiple sensing pads, each typically with 12-24 sensing elements, which can be placed on any location of choosing in the gripper. Data from sensors are transferred to grippers via I²C or SPI digital interfaces, enabling you to easily integrate the sensors into your grippers.

After years of proven successes of working with many robotics gripper companies we encourage you to partner with PPS and benefit from...

  • The ability to give  your robot the “sense of touch” 
  • Providing your robot with the ability to manipulate delicate objects
  • Optimizing your grippers for low-power operation by minimizing grasping force
  • Collecting data using the most sensitive and repeatable tactile sensors for robotic applications 
  • The great flexibility of PPS customized sensor design patterns which can be molded to fit almost any gripper shape while keeping data quality intact.
  • Working with “The Company to go to” for embedding tactile sensors
  • into robotic grippers.

Twendy Hand


It will be our pleasure to partner with it to embed our tactile sensor technology into your products through development and licensing/manufacturing services.


  • We will integrate our sensor solutions into your prototypes.
  • We will also consult on sensor design, integration, and testing.
  • Manufacture and supply logistics of prototypes per customer requirements.


  • PPS can either license its OEM solutions directly to you.
  • Or we utilize our strategic manufacturing partners to produce our sensors.
Twendy Hand Grasping a Lemon

Twendy Hand Grasping a Lemon

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User Stories

Application: Human Symbiotic Robot
Product: Twendy One
Partner: Waseda University and Toyota


  • Twendy One, a humanoid robot, helps elderly patients to stand based on feedback obtained from the person’s grip and guides or assists people with everyday tasks.
  • Only five feet tall, but very powerful, weighing in at 245 pounds with man-crushing arms, Twendy-One also needed to be as gentle as she was strong.


  • RoboTouch sensors were integrated into Twendy One to provide dexterity and “gentle touch” into each of Twendy-One’s hands.
  • This is attributed to the 241 RoboTouch sensors integrated into each of Twendy-One’s hands.


  • Twendy One now has soft hands and fingers that gently grip with enough strength to lift humans and interact with subtle movements that respond to human touch.
  • Twendy One is strong, intelligent, and agile, but PPS sensors have given her the ability to feel, making her an ideal robot to care for our handicapped and aging population.  

Application: Robot Gripper
Product: PR2
Partner: Willow Garage


  • Willow Garage needed tactile sensors to be embedded into their Personal Robot 2 (PR2) grippers to help it pick up varying objects such as silverware and pens.


  • RoboTouch sensors were designed for use with the PR2 open-source robot hardware platform. 
  • The sensors were designed to the specific shape of the PR2’s gripper.
  • The full system assembly includes the gripper, the sensor, and a durable, nonslip, protective covering for plug-and-play with the PR2 platform.


  • The sensors include 22 different tactile sensing elements covering all possible contact surfaces of the PR2 gripper. 
  • Using a SPI interface, RoboTouch sensors deliver high quality quantifiable data about how hard PR2 is grasping and where the contact is being made, empowering it to pick up various delicate objects.

RoboTouch Twendy-One

RoboTouch WillowGarage

Application: Robot Hand
Product: BarrettHand
Partner: Barrett Technologies


  • Barrett Hand is a multi-fingered programmable grasper with the dexterity to secure target objects of different sizes, shapes, and orientations. 
  • Barrett needed to enhance their BarrettHands to allow for dexterous manipulation in highly sensitive applications ranging from robotic surgery to repair missions in space.


  • Barrett approached PPS to integrate the RoboTouch sensors into their BarrettHand and provide it with the sense of touch.  
  • With 96 RoboTouch sensing elements, the BarrettHand can now detect exactly how much pressure its fingertips, grippers, and palms are exerting onto a surface.  
  • Calibrated data from sensors is transferred into the hand via I²C interface


  • PPS sensors provide quantifiable, accurate data about how hard the hand is grasping and exactly where the contact is being made. 
  • This allows the BarrettHand to operate differently shaped tools, or even fragile items, and to have a greater degree of autonomy.
Barrett Hand

Barrett Hand