Meet ManoPLA, the new mechatronic hand

The gestural humanoid robotic hand has been developed using advanced mechatronic techniques which confers a fully integrated design for the 17 Degrees of Freedom. The total cost of the hand not exceed 275€ and the weigth is less than 300g.

The hands for Hidalgo

Hidalgo is a human size humanoid robot developed by students from UPM. ManoPLA is the project focusing on the development of its hands. The main reason to keep the hand as an integrated design is to easily connect it to the humanoid robot. 

Technical specifications

Mechanisms

All the information about transmissions and mechanical components within the hand

Electronics

The designing process of the electronic components, including PCB design

Software

How the hand is controlled by code

Mechanisms

17 DoF

ELECTRONICS

PCB design

All the PCBs, developed using Eagle tool, have been designed to fit in the hand structure.

  • 6 PCB
  • 2 layers
  • 65 components
  • 508 pads SMD
  • 313 vias

Electronics

Mini DC motors

IR Sensors

17 different DC motors and 17 independent IR sensors have been incorporated within the hand and fingers in a very compact desing

ELECTRONICS

Advanced circuit solutions

The need to independently control 17 actuators and 17 sensors, means having a large amount of digital and analogic inputs, not easily found in one microcontroller. To solve this, two different solutions have been developed

    Analogic inputs

    Digital outputs

    Electronics

    Fully integrated

    Software

    Microcontroller programming

    The low-level programming of the microcontroller allows for a complete control of the device which is especially important when reducing the execution cycles. Such optimization makes possible the elaboration of 17 PWM independent signals by software.

    Software

    Robust software

    Using C and C++ allows to ensure the optimization of the code since object oriented programming is the perfect way to organize the program which controls the robotic hand.

    Software

    Teleoperation

    To ease the control of the hand, a computer interface has been developed. Using the keyboard it is possible to control all degrees of freedom independently, and also set the free keys with an specific movement. The comunication between devices is performed by serial port.

    Contact

    authors: Carlos Morillo, Miguel Hernando, Diego Guffanti, Alberto Brunete