Follow mercenarymind on Twitter
Printed 608 BB bearing by TheRooster
Written by MakerBlock   
Thursday, 11 November 2010 00:00
Printed 608 BB bearing by TheRooster

Printed 608 bearing using BB's by TheRooster

Some days, such as today, I love being wrong.  :)

The other day I suggested printing a 608 bearing using 4.5mm BB’s would be impractical given the dimensions of a standard bearing.  There were a number of very well thought out responses from Tre3 and TheRooster to my wild12 accusations.3

Last Updated on Wednesday, 10 November 2010 22:51
Read more...
 
USB IR Toy prototype testing
Written by Ian   
Thursday, 11 November 2010 00:00

Testing a USB IR Toy update, the infrared light is visible to the camera.

This design uses three LEDs. Two 50degree wide-angle LEDs on the side, and a 25 degree narrow beam LED in the center.

Total current is 100mA, could be pushed to 200mA. Using 3 LEDs let us use a smaller current limiting resistor.

What do you want? One LED or three? Vote in the poll.

Follow our progress in the development thread.

Last Updated on Wednesday, 10 November 2010 22:55
Read more...
 
555 Timer IC
Written by admin   
Thursday, 11 November 2010 00:00

This article discuss about the 555 timer IC. It talks about the history of it, the modes of operation (Monostable, Astable and Bistable), the pinout etc. It also introduces a LED blinker circuit to show it in operation.

555 Timer IC - [Link]

image
image

Last Updated on Thursday, 11 November 2010 00:08
Read more...
 
100 555 projects
Written by admin   
Thursday, 11 November 2010 00:00

A link to 100 IC circuits. A free e-book worth reading for any any one who think they are handy with a soldering iron.

Last Updated on Thursday, 11 November 2010 00:11
Read more...
 
Bluetooth code for Arduino USB Host
Written by oleg   
Wednesday, 10 November 2010 00:00
Arduino to Bluetooth connection

Arduino to Bluetooth connection

I am pleased to announce addition of Bluetooth dongles to the family of USB devices supported by USB Host Shield. Bluetooth dongles are affordable, interface is well documented, and USB transport layer is very simple. Even though full Bluetooth protocol is heavy and takes a lot of program space, it can be stripped down quite a bit for a particular application. One good example of such approach is Richard Ibbotson’s HID over Bluetooth implementation – see Wiimote Game Controller Interfacing article for details.

Last Updated on Wednesday, 10 November 2010 11:39
Read more...
 
<< Start < Prev 131 132 133 134 135 136 137 138 Next > End >>

Page 133 of 138