Let's Make Robots!
Price: $24.95 USD

 Collected by one member
Order the Pololu ball caster variety pack and save! The variety pack consists of all seven Pololu ball casters. The replacement 3pi ball caster is not included … Read more
This is my first experiment working with the XBee modules, and I thought it would be cool to control Farrusco. So, … Read more

Depression

Not many people understand chronic depression. I doubt anything I write here will solve anything, but I think it's important that people recognize the signs of depression and learn to recognize them in themselves and their loved ones.

Most people make the mistake of confusing depression with depression. See, I've just done it myself. One problem for English speakers is that the word for depression (as in a chronic life-threatening mental illness, most often inherited) with depression (as in being sad for a few weeks due to a known cause).

I've found this multifunction chip on ebay,  the official webpage is http://www.web4robot.com/ I've just bought a pair, I'll come back to post with my … Read more
    I'll detail here a simple implementation of a EIA485 bus with PICAXE RS485 : 3 wire bus (half duplex), upto 1200m (400ft) @ 200kbps ,  50 m @ … Read more

The Parallella Board?

I was wondering what people think of this board and the supercomputer that this guy built with them.

The Board:

https://www.parallella.org/board/

This guy built his own supercomputer with 8 of them (each with 18 cores) wrapped around a gigabit switch and a couple of Intel I3 NUCs.

The Supercomputer:

https://www.parallella.org/2014/06/03/my-name-is-brian-and-i-build-supercomputers-in-my-spare-time/

Price: $15.95 USD

 Collected by one member
This gearmotor is a miniature (0.94" x 0.39" x 0.47"), high-power brushed DC motor with 150:1 metal gearbox, similar to Sanyo’s popular … Read more
Add a basic sleep like function to a Raspberry Pi
The Raspberry Pi is a great platform for robotics. But something that is always important for mobile robots is the power consumption. Just the Raspberry Pi needs … Read more

RobotShop Acquires LetsMakeRobots.com

RobotShop, the leading source for robots and robot parts on the web already hosts one of the largest communities of robot and drone enthusiasts. In 2010, in order to better serve their community by providing free information and articles accessible to all, RobotShop acquired GoRobotics.net, one of the most popular and oldest blogs on robots.

Help with 555 circuit.

Well, I have got the 38khz distance sensor working in picaxe form.

Here

Here

Now I am trying to wire-up a stand-alone unit with a 556. Now I know this is a RTF(data sheet) moment and I know the resistor/resistor*cap/2 (or whatever) equation, but the final circuit is still above my head. Are there any of you circuit guys out there that can do a little drawing for me? Maybe with a couple pots for fine adjustment? I plan on the final output going into a picaxe using the pulse-in command.

Thanks in advance.

arduino bootloader

hi every one 

kinda noob to this programing and stuff :) 

i have a small problem maybe some one could help me. Ive just bought 2 Deek robot mini boards ardunio clones but i dont have anything else to upload sketches into the borad other than arduino uno so i found tutoriel on google how to set it up.

taking out the atmel chip on the uno board 

and connecting

tx to tx mini

rx to rx mini 

reset to dtr mini 

gnd to gnd mini 

5v to vcc mini 

This 25mm (1") diameter is custom made to mate with the GM10 pager gear motor. Ideal for Micro-sumo robots! Now available in five different colors. Read more

Programming Language

I've written most of the mechanical aspects of my robot in C++ (native to Arduino DUE) and am moving on to the brains, which is a Raspberry Pi 2.

I'd like to write this in a higher level language than C or C++. I am annoyed at the hoops I have to jump through to deal with strings and for that matter arrays.

I see two main choices, Python, and there is a Python 2.7 and a Python 3.4, and Node.js. What I have at the moment is OpenCV with Python 3 bindings, pocketsphinx, and eSpeak.