Index of /Digital/Interfaces
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09/29/09
ideas or comments?
please send us your comments or suggestions or any ideas you might have for the site. this is the easiest way for you to let us know what you think. just type in the box below and send.

Thank you, everyone who has helped support the site over the years. you've done your part, now help me do my part to improve the site with your input.





05/07/08
new server -
this week, we've moved the website to a bigger faster server. we have doubled the weekly download limit to 20mb and are now allowing hot-linking, so more people can get the documents they're looking for. this new server is still relatively low cost, but is a bit more to pay for each month then the last server. we still need your donations to help with this. thank you all who have supported the site and community!!!



01/24/08
upload files - upload.schematicsforfree.com If you have files you'd like to add to the site, we'd love to add them. Please don't upload anything illegal, harmful, or copyrighted. We will do our best to screen the files and put them online.


01/17/08
wiki - Think we should start a SchematicsForFree Wiki? It could be a HUGE helpful resource. We'll just need a few people to help out adding some content to it. Voice your opinion here:
http://www.schematicforums.com/vb/showthread.php?t=230


10/30/07
On Top - Do a google search for the word schematics. We come up at the top of the list, second only to Wikipedia! Thank you everyone who has contributed to the site. If I could, I'd send you all some candy for Halloween.

I know it's been some time sinse the site has been updated much. It has been doing very well how it is, and we don't want to make any wrong changes. We may be trying out some major changes in the near future and see how it goes, but if you have any suggestions or ideas, please let us know. You can email me personally at matt@mattsoft.net

Happy Halloween!


[To Parent Directory]

Last Accessed Size  File
11-16-09 18815  2 Transistor I2C Buffer.pdf
11-16-09 209623  6 LED interface board.pdf
11-16-09 179136  8088_I_O_PORTS.PDF
11-01-09 830669  8255_PPI_IBM_INTERFACE_CARD.PDF
11-20-09 83493  Acoustic Coupler Driver.pdf
11-16-09 78237  Analog-input_circuit_serves_any_microcontroller.pdf
11-13-09 20654  CMOS to TTL Interface with the 555.pdf
11-14-09 56171  Connecting a PC keyboard to the I2C-bus.pdf
11-16-09 910061  Control_individual parallel port lines directly.zip
11-16-09 45124  Control_individual_parallel_port_lines_directly.zip
11-12-09 8676  Driving_A_Triac_from_a_PC.gif
11-13-09 76386  Extend Ratings of One Wire Swirches.pdf
11-18-09 6233  ISA_to_8255_output_port.gif
11-13-09 114590  Increase Number of UARTS available from an MCU.pdf
11-16-09 404011  Industrial USB.pdf
11-13-09 375423  Interfacing CMOS.pdf
11-13-09 132136  LVDS Serializer-Deserializer Performance over Twisted Pair Cable.pdf
11-12-09 295685  PARALLEL_PORT_INTERFACE_BOX.PDF
11-12-09 244415  PC CONNECTOR PINOUT DIAGRAMS.pdf
11-19-09 243936  PC_I_O_INTERFACE.GIF
11-16-09 2018335  PC_Interfacing.zip
11-16-09 1012617  Parallel Port Interface Collection.zip
09-30-09 76466  Printer_Interface_Cardco_for_C64.pdf
11-16-09 103343  RS485 Limits.pdf
11-07-09 29372  RS485_Cheat_Sheet.pdf
10-30-09 61831  RS485_Trouble_Shooting.pdf
11-16-09 965544  Serial Communication UART, SPI, and I2C.pdf
11-02-09 4942848  The I2C Bus Application Note.pdf
11-09-09 311296  The I2C Bus Specification.pdf
11-09-09 258851  The I2C Bus and How To Use It 1995.pdf
11-17-09 385274  USB On-The-Go Basics.pdf
11-16-09 209221  Using a PC's RS-232 Serial Port To Communicate with 2-Wire Devices.pdf
10-21-09 2774386  i2c_overview_2h_2003.pdf
11-12-09 4659  pcmcia_connector_pinout.txt
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