Let's Make Robots!


Control Blender3D objects remotely

I just made a very simple example using Zeroc's Ice which illustrates how to control Blender objects remotely using Ice. Since Blender can run Python scripts, the idea is to write Ice server which can modify certain object properties (for example location). Corresponding client application can remotely invoke server methods and control objects remotely. Sources are available on GitHub. The first video illustrates how it works.

COSMA's brain

Attached you find the Rev. 0 schematic of COSMA's brain (Eagle). This board connects directly to a FTDI  board. As I need MOSI, MISO and SCK also for the micro SD card, I added solder jumpers, so those pins are not connected to the SD card/voltage level shifter while burning the bootloader on the chip.

The board mainly contains:

- ATMEGA2560

R2D2 feet

just a quick update on my mini R2D2 project.

I am making some progress, but slowly, very slowly. There a just so many choices to make that sometimes I can go for weeks just thinking up solutions for all the bits and pieces of this robot without actually building anything. Thats why I started trying a few ideas to get R2D2 moving.

OCR Working Better

Got the OCR service mostly done last night and today.  Need to get more sleep!  I uploaded new videos of Anna reading words at various distances.

It seems very reliable now with letters that are 2in high at about 6ft away, so I'm think 3-4in high letters in smaller rooms and 5-6 inch letters in larger rooms should be sufficient.

COSMA - Update 2

For the first protoype of COSMA I decided to build stackable proto shields for the Arduino Mega. Later I will layout a single PCB, including all.

Proto shield one

Proto shield two

Campus Party London 2013


Well, it's a couple of days now that the Campus Party closed it's doors and I am back home already. 

Reading Words off Pages and Walls using OCR, Start of Indoor Localization

Today my robot read its first words with its own eyes!  from around 8ft away!

Got Tesseract OCR going on the bot.  Its reading words close up and from distance with large fonts.  This will be the start of my indoor localization system.  Bot will be able to determine what room it is in and where it is within the room to some degree, by remembering what is written where in the house and using it as landmarks for knowing its position, with a little geometry.

I'll post some video of this in action as soon as its polished.

BoB the Biped and me: We love quiet sunset walks on the beach.

This is just a happy blog about how my BoB is fully mobile and can navigate obstacles. The sensor is just hanging loose but if angled the right way it works fine :) I'm using an HC-SR04 sensor with the newping library for fast distance readings that don't put a big hitch in the smooth walking. I have the library set to timeout the sensor if there is no signal after about a foot or so. Distance readings are only taken while BoB is facing forwards, be it on one or both legs.

Maker Faire NYC 2013

Let's Make Robots has been rocking the NYC Maker Faire since 2011. This year Chris the Carpenter will be manning the helm. I'll be helping with some planning and logistics and crap like that.

Update: 5 August 2013

Maker Faire Application

BoB the Biped with his Arduino motor cortex

After a lot of reading and some minor language barriers I've finally gotten over my fear of Arduinos. Thank you, BoB. He was in need of some floating point math so it seemed like a good time to make the transition. I find what I write looks a lot like BASIC but I'm just glad it works.

Starting SuperDroidBot Blog

So much is happening so fast, I'm starting this blog to document what is going on with the bot, so I can look back on my thoughts from time to time and see how they developed.  Others are more than welcome to participate!  I'll start by throwing in a diagram and some fun video!



Hello everybody Im making this blog to keep track of my new project which will be a custom gps tracker ,navigator,nmea sentences parser for raspberry pi . 

For now Im just using my raspberry pi B version 2  , one global sat em406a gps module with a sparkfun adapter 

WhiteBOB - preview

This is WhiteBOB, my member of the BOB family. Because I have no access to a 3D-printer this robot is build from polystyrene sheets (3 and 1mm) and a piece of PVC corner strip.

BoB the Biped and me with v0.91 board design

I got my pile of BoB parts from isotope yesterday and I was stoked to say the least. He even printed out a JAX name badge for me \o/ Thanks man! My BoB is glow-in-the-dark blue ABS and it luminesces as advertised. Blue Glowy BoB... mmm.

Initial test fits showed that there was going to be some grinding work in my future to make things work. One change I made to the original build list was using an HC-SR04 for the sensor. The sensor holes in the head were too close together so I removed some material on the outer edges to make it fit. It's real nice now.

Maxhirez' PICAXE board

9-29-2014: This update just adds the zip file containing the board in its current layout. Send the zip file to your favorite board house and get your own stack of boards. :) I still have a few that I am dispersing.

A week or so ago Max was trying to find a layout for a PICAXE 18 or 20 board with an L293/754410 motor driver. He was hoping for something similar to what sanc04 assembled.

My daughter

My daughter Mia is 2 years old. Every evening she is sitting next to me and helping me building a robot.

COSMA - Update 1

In the meantime I named the robot astronaut Cosma, a maiden name, ancient Greek for Cosmos. Below you'll find a more specific design study. I think I will 3-D print the main body and the head. I've furthermore tested a FSR (force sensing resistor) as a kind of pain receptor and the ArduEye.

Mind the Raspberry Pi power usage

The RaspberryPi is a powerfull little gadget that can add a lot of good features to your robot. For under $60, including cables, dongle and SD-card, you get a lot of processing power, data storage, wifi and audio. So I ordered a RaspberryPi to be used as the brain for my R2D2 project.

Arduino Robot Review

Here at Banana Robotics, we're very lucky to have a sneak peak at the Arduino Robot. It's about 7 inches in diameter and features two separate Arduino microcontroller boards. The upper deck is the Control Board and the lower deck is the Motor Board. Each board has TinkerKit type connectors for expansion. The two boards talk to each other via a serial port.

We could be the third sending a humanoid robot to Space

After Robonaut 2 and the ongoing KIBO project, we could be the third to send a humanoid robot to Space. See my attached AT-A-GLANCE project description.


Club Jameco Entry

Well I submitted an idea for club jameco.

It's a kit which you solder and connect sensor wires and servos

the sensors are attached to a glove and are connected to the soldered board, and the servos make up the robotic hand, I designed the PCB.

The only thing I don't understand is should I include the glove and the robotic hand with the kit or should I let the person use their own glove and make their own robotic hand.

Win a Cheapduino Set

Sorry for posting that so late but there are still two days to go.

Win a Cheapduino Set by submitting your project idea to the DFRobot contact address. See details here: 


This submission will end by June 19th, so you still have two days time to get a project idea and submit it.

Please read the rules in the provided link to qualify for DFRobot's "Monthly Gear Giveaway"

Weekend Project: Either Create a 3-Axis Printer or Finish My Delta Robot

Hey Everyone,

I'm making an effort to create either a very small 3-Axis Printer/Router or finish the Delta Robot this weekend

I have other things on my list of "must do" but I'm going to make an effort to get one of these projects done

If I build the Printer/Router, I realize there are a zillion examples already out there but I want mine to involve a different design (not that I expect mine to be better than anyone else's)

That's all for now - photos & build log updated soon


Drive Stepper (4th axis) off of PWM Spindle Control Ouput

Sorry 'bout this one, I am just sorta "thinking aloud" here, feel free to brainstorm with me, there is no real specific question here.

I want to use the 4th axis (horizontal rotary axis) as a lathe on my CNC. The X,Y,Z would operate normally, the only difference would be that they would be grinding away at a chunk of something spinning, as aposed to sheet-goods clamped down to the table.

theory vs. soldering

Well...my robot is far from being able to be presented.

In fact I try to build/solder some parts on my own, which seems to be more challenging than expected. Actually I´m soldering a h bridge with its controller based on oddbots h bridge - without the current sensing part - and I just hat to face, that it doesnt work. I guess its not due to oddbots design, but to my soldering skills and or adapting to a simple board design, since I solder though-hole.

I hope I can figure out the problem soon...

Antique desk, marvel of engineering


I can't even imagine the time it took to design & build something like this. All done with no electricity, motors, or micros.

MURCS - Sneak Preview


this is MURCS - Multi Use Robot Construction System. My first self design chassis using laser cutted parts. Today the parts arrived and I have quickly assembled them for a foto shooting. 

The neon green chassis looks great. 


The design was made with SketchUp, my favorite tool for 3D design. This is a early design using a second platform.

ABM - A Better Mousetrap

Several months ago, I posted about what the Standard Template Library had done for development when it came out in the mid 1990s.  I remembered how it was this incredible leap forward in software.  It enabled a developer to do things in minutes that were hours, days maybe weeks before and was a huge leap forward in productivity and software quality.  It took standard algorithms and made them out of the box sorts of things that were easy to use and implement.


Friend E


This is my entry for the Office Gadget Challenge. I based my design on Burn-E from the movie Wall-E.

First design stages of the robot i would like to make.

The base of the robot is a metal project box, in the box there is going to be :