Let's Make Robots!

Choice of inverter for 17 inch monitor

Hie everyone, for my next project i am working in a telepresence robot for hardware i have
GA-D525-TUD Mini itx, 1.8ghz intel atom D525
RAM- 4Gb
160W dc-dc psu (cheapest one i could find)
12v 12AH SLA Battery 
17 inch L1710S monitor (Rated at 1 A) 

Power consumption Spec:

Power Supply

Code help for Robot arm - High current motor

My project is a 5 motor robot arm.  I have a megamoto  plus mega2560.

What happen with my 3.2" TFT???

I got a problem with the 3.2" TFT. I connect the TFT module with Arduino MEGA 2560. Then I followed the instruction from http://forum.arduino.cc/index.php?topic=101029.0, downloaded UTFT library, used UTFT_demo 320x240 and changed the display model to SSD1289. It can show the demo, but with many thin white lines. The lines moves when the image moves. 

I have checked the wiring and it still happens. Any one knows why is that? Thanks for the help.

Sizzling Summer Servo Sale!

SAVE BIG at ServoCity NOW - June 26th!

PopPet is coming to Kickstarter!

aI know, many of you are probably already aware by my constant SB ramblings, but the Kickstarter campaign to produce PopPet's is approaching (aiming for the first of July).

I've been working on this for a long while now, gone through several revisions, got quotes of parts, calculated fees, calculated shipping costs and taxes and here we have it:

The Preview Kickstarter page!


Heads up :- Official Hackaday Prize entry - Odds of project landing in quarterfinals (top 50): one in 8.9

Just a heads up to inform everyone that the "Voting" has started on  The Hackaday Prize

Caution:- Dont get caught by the winning prize (its metaphorical) :-

"To Win a trip to space"

That's right, one hardware hacker will get a trip into space as the grand prize. There are incredible top prizes for the other four finalists, and hundreds of other rewards for the most interesting submissions.

Switching Frequencies for Industrial/Automotive Solid State Relays.

I have been working on a large outdoor robot driven by "Power Wheels" children's car motors for a while now (http://boomsandbots.blogspot.ca/search/label/Project%20Killzone is the section of my blog devoted to it) and I decided to build my own high power motor controller rather than buy one. As you can imagine, it has been a journey filled with smoking electronics, learning, and rebuilding. Anyway, I have relays set up to control the direction of the motors, and that part works quite well, but the problems I have had is with the speed control section.

NEW Channel Connector Plate!

These plates make it easy to create a strong joining point between our channel pieces!
$3.99 / 2 pack

Servo not working on dagu rover 5 from sparkfun

Hello everyone!

i've made a robot but the servo (a Standard Servo from Parallax) I use doesn't work, it turns all the time to one side, even if i don't use it!

I connected it to a 20M2, the servo does work when the robot isn't moving but from the moment it moves, the servo turns.

Here's the code:

Motor selection advice.

Is this motor a good choise for a 4wd/6wd robot weighing 1-3kg? It looks cheap, fast, and powerful.




PICAXE 20M2 Not recognized by computer

Hello everyone!

I've soldered on a prefboard a circuit for my 20M2, but the 20M2 doesn't get recognized by the computer.

I've checked already the connections and resoldered some components but it does still not work.

I checked first there wasn't anything wrong with the download cable or with the computer but I can still program my 28X1 on his project board.


so ive been making a polymorph hand for quite some time now and i needed to know the best placement for the servos... take into consideration i also have a palm.

polymorph hand!!!!

so ive been working on a polymorph hand for quits some time now and i need halp on the place ment of the servos

Arduino Nano avrdude problems

Afternoon folks

I've hit a stumbling block with my project - I was planning on moving the project from my Arduino Uno to Arduino Nano to save space.

When i've used my nano, however, it worked to upload to it twice (I think. No success though - i attributed that to my poor coding) and have now noticed it is producing the below error:

avrdude: stk500_getsync(): not in sync resp=0x00

When I hold shift and upload I am getting:

avrdude: usbdev_open(): did not find any USB device "usb"

Apply for a free ICs chips for testing

All ICs chips on www.ICStation.com are on 30% off till 15th, July.
And if you have a project which needs our ICs chips, please share us the usage of our item on your project. Then we'll have a review and decide to send your the free chip for testing.

Hantek 1008B Oscilloscope review

I wanted to watch a lot of analog data faster than Arduino's or MCP3208's could manage, so I ordered a Hantek 1008B a while ago.

Hantek 1008B Review

Since I decided to use it for the HexPi and TBMST tests, I decided to write a review before using it - figuring that if it ended up being useful to me, it may be useful to others.

Micro Controller grid with LMR user cross reference?

Rox and I have a common complaint-we seem to collect SBCs like baseball cards. Tonight.

Cypress ARM PSOC dev board with USB for $4

The PSOC (programmable system on chip) processors are really, really cool.  I've been wanting to play with them for some time.  Now, Cypress has a board / dev kit available for $4!  Now is the time.


These chips are based on ARM Cortex M0, same as the LPC1114, but have programmable logic and programmable analog components on board to make your own peripeherals as needed.  I'm placing my order now.

Chinese prices with US shipping times: Tayda Electronics

I live in the US, which is nice when it comes time to buy parts.  We are fortunate to have lots of companies selling electronic and robotic parts, from big name distributors like DigiKey and Mouser, to smaller hobby oriented places like Sparkfun, and surplus outlets like All Electronics and BG Micro, and those in between like Jameco, among many, many others.  I have have good luck with all those listed.  Normally, my stuff arrives within a week.  But there is a whole other world of buying from Chinese suppliers, often on Ebay, but also quite often from established web st

The Raspberry Pi Powered PiBot

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