Let's Make Robots!


project tracked byped

I'm working with a poppy robot platform as its complete parts list was easy to download and 3D print. I've decided not to use the dynamixel servos and instead made an adapter housing for standard hobby servos to be used. This is great for cost but it may bite me in the butt later as I now have limited support with my robot from the poppyrobot project group and must learn everything on my own. Blah blah Wha Wha. 


I became a member of Let's Make Robots a couple days ago.  That didn't last long.  I had been told what a helpful and friendly site this is.  That isn't the impression I got.  I replied to a post that I felt was giving bad advice.  I won't link to it.  It is easy enough to find if you like.I asked the poster, who is apparently a fourteen year old, to clarify their answer because I was afraid someone might damage their equipment following that advice.  the repsonse to that was basically that it was only a nine dollar board so who cared if they blew it up.

Real Life or Something Like It

i may have mentioned this in passing, but I'm divorcing my wife. I will file in the next couple of weeks. I could divorce her for cause but I'd rather do the simpler no-fault divorce because it will mean I can put this behind me much more quickly.

Unfortunately this means that I have to pack up all my stuff and anything I don't want gets sold or given away. I'm assuming it will take about three months to get the house in order before I can find a new place and unpack again.

Cheap 40W Laser Engraver from China

I have wanted a laser engraver for quite some time but the price has always been prohibitive for me. Recently though, I found some engravers from china on Amazon for about $500.00 USD and free shipping. Plus, I contacted the vendor and found that the unit would ship from California. I read all the reviews and they all agreed that the machine is great. However, the downside of these machines was the software that is included. After carefully considering all the relevant information I decided to purchase one.

It priiints!

Finally my 3drag prints after a whole brain operation, which involves using RAMPS, rewriting parts of the firmware, resoldering part of the arduino shield and drawing with a 3d pen missing and weak parts. Started october building it o.o

Little Back PI wagon reborn!

Well after a few starts, stops and redo's on the chassis, I have a new iteration of my Pi wagon. I have skipped publishing anything about the last two of three :)

MAKE: Skill Builder - Hydraultics for Robots

I wrote a quick tutorial covering some of the basic concepts of hydraulic systems, and how that applies to a simple robotic arm project. Read more on MAKE... 


Swarm Robots w/ extras

I'm thinking of trying a swarm robot project for sometime in the future. However, I want to do something different.

I'm thinking that individual swarm-bots might not be too intelligent, but what if each of them had a neural network, and with communication between bots, parts of the neural networks can combine (Holy Mighty Morphing Power Bots, Batman!) via radio.

Ridicule Page

Hi all,


I'm still working on my robot, however the mechanical side is almost complete, the electronics are almost complete, but the coding still remains to be finished.


Ready for the Zombie robot (or processes) Apocalypses

Had several laptop battery packs with 18650 in them. Opened the first two up and found 2.2mah Samsung and Sanyos. I have two more to open.  I'm sure the older one has lower rated batteries in it, but the other should be about the same as these. I plan to make one more 7.4v pack and one 11.1v and leave the rest for 18650 holders I have.

PI Bot, expanded

Here is some more pics of my Bot

Free single day ticket for Maker Faire Bay Area May 16th - 17th

Well, it's about time to get this information out to you guys. We, DFRobot, will give away single day tickets for the Maker Faire this May in San Francisco.

What's the deal?

The deal is, you will get two single day tickets for Maker Faire and in return you will give us 3 hours of your time as a volunteer at our booth.

You will give us:

Let's share our robots with the world! Follow Let's Make Robots in Social Media!

Hi folks!

It's being a while sharing projects and experiments together, developing out skills on robotics also having fun!

To make our community grow some of us though to make more dinamic out social media interactions at TwitterFacebookGoogle+ Profile and Google+ Community, Flicker and Scrapbook


Lets Make Robots dasboard for Twitter


Some of you have Twitter or Facebook or even LinkedIn. So Let's Make Robots does!

We ask you to interact with Let's Make Robots account in the main social sites we are, so we can:

Marketplace at Let's Make Robots running well


Las week I purchased a propeller at the Let's Make Robots Marketplace and it works great. Here is the picture of what arrived, also a Pixter X Platform module board!


Purchased at Let's make robots Marketplace

Lazy Sunday afternoon...

I had ordered a few things from ServoCity and was mucking around with them today and made this:

My Soft Robotic Hand in Popular Science

I'm really excited to announce that one of my robotics projects is now in Popular Science magazine!

I met two editors from PopSci last year at NY Maker Faire, and exchanged contact info. Later one of them reached out to me to ask if I'd like to do a robotics project for the magazine, based on the resources in Harvard's Soft Robotics Toolkit.The toolkit is an excellent place to start if you are interested in soft robotics.

I new bot chassis to play with. "Clamps"!

I After seeing the new Actobotics runt rovers and getting my hands on one, I find that I like them a lot for a quick inexpensive chassis.  Anyway, I have always loved boxy cars and was a Volvo owner for a long time. I had to have this one (Half Pint) since it's so, you know boxy! :)  Thinking of putting a gripper and a cam on it. Lot of room in the box!


Prom Night...Robot Style

Check out Anna rocking a dress...Artie is killing me with the bow tie.  Classic.   I'm just glad there are chaperones there...

Prom Night

I'm already doing well!

I just made my first real sale, that is one test sale and one real sale. Oh baby, this is going to be cool!


(Backend of the marketplace, my personal webshop)

ESP8266 wifi module issues I have had

The ESP8266 is very powerful little module, but a very picky one as well. In working with original ESP-01 I had very limited success with it and it just acted "flakey". I do understand now what most of the issues were with this module. 

NodeMCU ESP8266 simple httpd (web server) example

I want to add a simple webserver to my NodeMCU bot, and...

<begin old man grump>

ESP8266 running NodeMCU as a controller

Every since the ESP8266 modules were released, I have wanted to try one.  I ordered a few once they came out last year, but did not get to try them out until this year. After trying one module that seemed to work but never could be connected to, I tried another and was finally able to get one to work. The only test I actually did with it was to grab a webpage, basically a curl call. That was earlier in the year and had done nothing else since with them.


QSM - Quarter Square Multiplication, 8 x 8 -> 16 Speed Record on Extended Baseline PIC!

QSM - Quarter Square Multiplication, Speed Record on Extended Baseline PIC!

I'm a great fan of PIC10F / PIC12F / PIC16F controllers. They are inexpensive, they offer verstalie peripherals, and they are absoulely energy efficient which is becoming extremely important in the era of IoT. However, they don't provide mulitplication hardware. There are several code snippets for software multiplication around, but there is still the challenge of doing it better. I've taken it! And here we go with the fastest 8 x 8 -> 16 multiplication I know on extended baseline PIC.

4x4to8MTL - 4 x 4 -> 8 Multiplication by Table Lookup

The challenge

On piclist.com we find lots of basic arithmetic routines including multiplication of two 4 bit numbers giving an 8 bit result [1]. It gives detailed derivation of his code which is small and fast, indeed.

But we can do better! Since this article was published Microchip has brought the enhanced baseline PIC to market which has competitive price, larger instruction set, and more special function registers with increased functionality. This gives the option of simple and fast table lookup in program memory.