[news]Robots for humanity



[news]Robots for humanity

When you want to move with 50mph you are disabled and need a helping device. It’s called – car.

Well, this guy has problem with some other movements as well, but fortunately enough there are the robots available to make it all possible. Enjoy this ultra cool TED Talk, delivered by a person and couple of robots.



Hello world,


We are realy happy to announce our partnership

 with Olimex Ltd.  The company supports us 

with Servo motors and Arduino Development boards

Because of companies like Olimex we’ll be able to develop the exoskeleton and it feels great to have them besides us.


Olimex Ltd is a leading provider for development tools and programmers for embedded market.


The company has over 20 years’ experience in designing, prototyping and manufacturing printed circuit boards, sub-assemblies, and complete electronic products.

We are established in 1991

in Plovdiv – the second largest city in Bulgaria.

They have extensive knowledge in analog, digital, and microcontroller design, and we offer our own-designed development boards, programmers and emulators for rapid prototyping ARM, AVR, MSP430, MAXQ and PIC microcontrollers.


Olimex is recognized as an approved Third Party Hardware Developer by Texas Istruments Inc., Maxim-Dallas Inc., Atmel Inc., Philips Semiconductors Inc., ST Microelectronics Inc., IAR Systems AB, Cirrus Logic Inc., OKI Semiconductor Inc, Energy Micro Inc., Microchip Inc. and we have over 30,000 active customer accounts who regularly use our services for electronic boards development and prototyping. Our design capabilities are backed by our own PCB prototype production and assembly facility, so all designs made by us are created with Design-For-Manufacturing in mind – which guarantees that they are optimized for reliability and provide cost-effective solutions for our customers.

The company’s 5,000 sq.m. production buildings are situated on our 10,000 sq.m. property.

Action plan

Hello World,

We’ve been kind of silent on the account of our own work and posting only stuff about the world of robotics. But it’s time to reveal part of our action plan.


Robot-Arms-Head-Wall-Peek-485x728 (1)

Here is a sneak peek what we are gonna do. The project is now divided in two main parts. Making a small functioning model of the exoskeleton. And than – the real one.

The small model will be used to test the algorithms of control and the mechanics concept. The links will be 3D printed – sponsored by print3D.bg . We’ll use servo motors and Arduino boards to move it move it – sponsored by Olimex Ltd. Accelerometers to sense where are we.

Coming soon – the drawings of the exoskeleton.

[news]Frank[enstein] – First Bionic man

Ready for a Sunday movie night? Because this Sunday an epic movie on the first bionic man comes out.

Frank, short for Frankenstein, has 200 processors and a million sensors
It also features a functioning circulatory system fitted with a beating heart
The bionic body is made up of 28 artificial parts from around the world
Six-foot tall Frank can walk and talk with the help of a remote control

In a scene that wouldn’t look out of place in a science fiction blockbuster, researchers have unveiled the world’s first walking, talking bionic man complete with circulatory system and a beating heart.
Called Frank, short for Frankenstein, the six-foot robot is made up of artificial body parts donated by various research centres from around the world, has 200 processors and is covered in over a million sensors.
It was designed by Dr Bertolt Meyer from the University of Zurich, built by a team of engineers in London and is currently on display at the Smithsonian Museum in Washington as part of The Incredible Bionic Man exhibition.

Prosthetic hand paired with brain stimulation gives monkey an artificial sense of touch


Each year prosthetic limbs become more incredible, whether they allow a wearer to run at Olympic speeds or are controlled by thought alone. But most still lack a sense of touch, which would give the wearer greater control and connection to their prosthetic limb.

University of Chicago researchers have published a paper detailing how stimulating a prosthetic limb wearer’s brain with electrical signals could replicate feelings of touch. They worked with monkeys, which they outfitted with electrodes connected to different areas of the brain associated with touch. The researchers studied their brain’s response to different types of touch to pinpoint the type and amount of electrical signal that would best replicate the sensation.

The monkeys went through several touch exercises with their normal hand and an unstimulated brain. The same exercises were conducted with a prosthetic hand, which was equipped with pressure sensors to register instances of touch. Pressure…

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[news]Robo ligue – Sofia Bulgaria


On the ninth of November there will be a robo ligue event in InterExpo Center.All the robos you wanted to build but never had the bolts to.

Competitions, demonstrations, discussions.





And a workshop in robotics!

Registration for RoboTeams is up until 5th of November on this adress

http://roboleague.bg/index.php/main/register (If you want to register, but don’t speak Bulgarian – contact us and we’ll be happy to help)

Registration for participants – 9.30h in InterExpoimages (1)

10.10h – Presentation – what is robotics10.00h – Opening

11.30h – Round table – Buisness meets Education

12.30h – Break

13.30h – Competitions

17.00h – Prices for the Winne


Robot control part 2: Jacobians, velocity, and force


Jacobian matrices are a super useful tool, and heavily used throughout robotics and control theory. Basically, a Jacobian defines the dynamic relationship between two different representations of a system. For example, if we have a 2-link robotic arm, there are two obvious ways to describe its current position: 1) the end-effector position and orientation (which we will denote $latex \textbf{x}$), and 2) as the set of joint angles (which we will denote $latex \textbf{q}$). The Jacobian for this system relates how movement of the elements of $latex \textbf{q}$ causes movement of the elements of $latex \textbf{x}$. You can think of a Jacobian as a transform matrix for velocity.

Formally, a Jacobian is a set of partial differential equations:

$latex \textbf{J} = \frac{\partial \textbf{x}}{\partial \textbf{q}}$.

With a bit of manipulation we can get a neat result:

$latex \textbf{J} = \frac{\partial \textbf{x}}{\partial t} \; \frac{\partial t}{\partial \textbf{q}} \rightarrow \frac{\partial \textbf{x}}{\partial \textbf{t}} =…

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