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.
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.
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