TakkTile Sensors / Products / TakkStrip
TakkStrip is the simplest way to integrate tactile sensing into your projects. The TakkStrip and TakkStrip 2 are completely compatible and interchangeable. You can compare the TakkStrip and TakkStrip 2 here.
It consists of 5 sensors end-to-end spaced at 8mm spacing, along with a "traffic cop" microchip that allows the entire strip to be accessed over I2C without address conflicts.
Use as-is, or overmold into other structures like fingerpads (clean with ethanol and a Q-tip before casting). Bare boards available for same price upon request.
PUT THEM WHERE YOU WANT
The TakkStrip can be used as a single unit (useful for parallel-jaw grippers, fingers, bumpers, and more), or separated with a dremel into smaller sections or individual taxels that can be placed wherever your project requires.
If the chips are separated, there are breakouts provided to allow easy soldering back to the traffic cop (indicated as "optional wiring" in the diagram above). The hole size is 0.4mm, which is designed to fit 30G solidcore wire.
Up to 8 different TakkStrips can be attached to the same I2C network by setting their addresses using the "address pin" solder jumpers at the base of the strip.
The address is set in binary:
The strip is designed to work with voltages from 3.6 to 5V. For more information, please see the TakkStrip Tutorial.
The rubber used for cast boards is VytaFlex 20 from Smooth-On, Inc. We recommend using the same material if you want to cast additional structure (such as finger pads) over the sensors (clean the surface first with IPA or ethanol).
Rubber thickness of the cast boards is 3.5mm.
The sensitivity of the cast sensors depends on the stiffness and thickness of the rubber used, the location of the load over the sensor, and the type of rubber used.
Sensitivity plots for VytaFlex 20 rubber with thicknesses of 4mm, 6mm and 10mm can be found here.
TakkStrip requires an I2C interface to read from a computer. You can use an Arduino (see tutorial) or a USB dongle such as the CY3240 USB-I2C Bridge from Cypress (Digikey Part# 428-1910-ND). For a higher-speed alternative see the TakkFast.
Please note: import duties, taxes, and charges are not included in the item price or shipping cost. These charges are the buyer's responsibility. Please check with your country's customs office to determine what these additional costs will be prior to buying.
We take pride in producing useful technology; since this is research hardware, the purchaser is responsible to test its suitability and reliability for a given application. In legalese, it is provided “as is” and RightHand Robotics, Inc. disclaims any express or implied warranties, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. But, if you are dissatisfied with it, please let us know and we will try to help. Defective products may be returned for a full, timely refund of the original purchase price
Five sensors cast independently, plus a "traffic cop" microcontroller that allows access to all five over I2C.
Six sensors; three cast independently and three cast as an array. Plus a "traffic cop" microcontroller that allows access to all six over I2C.
A high-speed USB interface for TakkStrips that speaks to Linux — ROS-compatible!
One TakkStrip and one TakkStrip 2 cast in rubber, an interface arduino, and wires — everything you need to get started.
Tactile sensors that were designed for the fingertips of the Robotiq Adaptive Gripper.
PLANS & TUTORIALS
Sensor design plans
Tutorials to enable I2C communication
Tutorials for using visualization tools
Tutorials for integration with ROS, Raspbery Pi, etc.