Let's Make Robots!

SoCal MakerCon - Nov 8th 2014

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The largest event celebrating inventiveness, innovation and ideas in Southern California!

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!


Code help for Robot arm - High current motor

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

IR sensor array problem!

I'm working on a line follower and have run into  a problem with the sensor module!

I'm using an array of 5 IR leds and photodiode that gives inputs to 3 LM358s (2 sensors per chip)...the problem I'm facing is that the last IR leds pair doesnt seem to be giving any output.The other 4  leds work perfectly though and all have identical connections.

Hello! here is some pictures of my Solidoodle 2 3D printer.

I have a tri-colour reprap, but I can't get the z to stop binding, so I bought this Solidoodle 2, and put some acrylic sides on it to help keep the build chamber heated, also to raise the top up so the filament doesn't have such a drastic bend going into the extruder. the acrylic is held on by small strong magnets, and some weather striping ( someone else's idea form the printer forums for the enclosure). The build area is 6" x 6" x 6"  or 152mm x 152mm x 152mm :D

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

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!

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.

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"