Blog entries

working model of wireless power transmitter and receiver. The Transmitter and Receiver coils with capacitors connected to each coils, forms a tank circuits that resonantes with a frequency of f = 1/(2π√(LC)), if the two resonant circuits resonating at the same frequency and were brought to close...

viswesh's picture
Author: 
viswesh
Last updated: 
29 Aug 2016 - 05:27

Decided to do this as a video blog, sort of...

Going to test this bad boy out this weekend. Report to follow

First test.......

Roxanna77's picture
Author: 
Roxanna77
Last updated: 
22 Feb 2016 - 20:14

I was searching for options to create joints for puppet legs and stumbled upon this very detailed website that makes CNC machining accessible to mere mortals. (While still requiring quite some work, it looks like it's doable and contains all the details and careful advice needed.)...

Author: 
maelh
Last updated: 
11 Feb 2016 - 07:45

IR sensor module:

IR emitter: It is a LED emitts infrared light (940nm typically) applications of IR LED: like optical counters, free air data transmission, infrared remote control, card readers , etc.... (blue-gray plastic package)

photodiode (one type of optical transducer):...

viswesh's picture
Author: 
viswesh
Last updated: 
8 Feb 2016 - 08:38

L ast May (2015) I found the deal too good to be true on a Prusa i3 3D printer so I had to get one. I had always said when 3D printers got under $300 I'd get one, that i3 cost $265 delivered. Of course, it was a kit and required about a week to build it, and then about 2 more weeks to get the...

Roxanna77's picture
Author: 
Roxanna77
Last updated: 
8 Feb 2016 - 17:01

Update: added a new longer video and a high resolution image of the robot

Highres Image

How cool is this? I want to build one.. I have some drones laying around and a 3D printed version of this where I use the...

fhareide's picture
Author: 
fhareide
Last updated: 
8 Jan 2016 - 05:20

Well, I've had the urge to hack. It's been strong for awhile now, sadly, with a more than fullt-time job and Bek in graduate school, I've had no time. Until now! The new job I have (HMIS Databse Manager) has actual vacation time. I've had almost two weeks off (combined with the Christmas holiday...

Ladvien's picture
Author: 
Ladvien
Last updated: 
1 Jan 2016 - 22:23

Put Mr. Wreath or Wreathy up on the door - he’s not sure what to think about it.

Mr. Wreath, or Wreathy is just a patched together project of other’s work… my usual routine.. that includes a normal store bought wreath, some black painted cardboard. a nice little 3d printed Christmas...

Protowrxs's picture
Author: 
Protowrxs
Last updated: 
29 Dec 2015 - 16:56

Please dont let the title to this fool you. This is not a line following robot that follows the black lines on the ground.

For some time I have wondered if it would be possible to draw a line or lines on the screen and then have a bot follow those lines.

As with most of my...

JeffRo's picture
Author: 
JeffRo
Last updated: 
29 Dec 2015 - 16:56

I have been striving for 3 weeks to get reliable communications working between 2 nRF24L01 modules. One is a"base" station with an older Sparcfun module with external antenae (approx $25) while the other new one has the onboard antenae (approx $2). The base station, with different CPU boards,...

ggallant's picture
Author: 
ggallant
Last updated: 
29 Dec 2015 - 16:56