Tapster 2

Entry level / Hobbyist robot Tapster 2 is the delta automated testing robot that started it all. Tapster 2 simulates a human finger on a capacitive touchscreen device. Ideal for use with standard-sized smartphones, Tapster 2 is programmable with any language using Tapster's HTTP/JSON API.


A customer asked if we could make a robot that interacts with an on-screen keyboard, specifically for sending text messages.


Tapster can be programmed to automate any kind of on-screen keyboard, whether it’s a text keyboard or music keyboard. See the video below of a pair of Tapster 2 robots to playing a duet of Heart & Soul on GarageBand!

  • Delta robot design 
  • Rubber-tipped capacitive touchscreen end effector simulates a human finger on a capacitive touchscreen device
  • Open source hardware license (MIT)
  • Ships assembled, tested, and ready to go

Tapster 2 robot can be purchased from the Tapster Robotics Store on Tindie.com


  • Tappable area:  140mm x 80mm (ideal for standard-size mobile smartphones
  • Software: Firmata firmware
  • Electronics: Arduino Uno microcontroller 
  • Servo motion control
  • Power: 9V power supply included


  • Computer running Mac, Windows, or Linux
  • USB port
  • Node.js

Past customization to Tapster 2 has resulted in new product offerings. If Tapster 2 is not exactly what you need, we recommend you look further into our other robot products and contact us for a free consultation. 

See Tapster 2 in Action:

See Other Robots in Our Portfolio:

Tablet Sized Screen

Tapster Tbot XL


Smartphone and Tablet Sized Screens

Tapster Slide

6-Axis design, Stylus

Smartphone Screen Size

Tapster Tbot


Smartphone and Tablets

Tapster Push Button Robot (PBR)

Press Physical Buttons

Smartphone Screens

Tapster Sidekick

Stylus and Button Press


Tapster 2

Delta Bot with Stylus

For Smartphones

Tbot with customizations

Stylus customized with Button Push and Camera

Tablet Sized

Tbot XL with customization

Stylus and Button Push

Connected Devices

Tapster Paybot

Button Push and Pin & Chip

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