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11 Mar 2011

Newer protocols are always fun to explore, such as the automotive CAN bus. Here’s a project by wire2wire which sniffs the CAN signals from steering wheel controls and converts them to a serial output. The main components are a PIC16F876, MCP2515 and MCP2551. [via]

CAN sniffing for steering wheel button presses – [Link]

8 Mar 2011

tehnikservice.net writes:

Finally I found some time to create a project, I explored the google and I found one page with an interesting scheme on VGA interface.  So I made the pcb with eagle and I made it with the toner transfer method.

VGA Tester with PIC16F84 – [Link]

2 Mar 2011

Just a little circuitboard to interface I²C-chips to the parallel-port.

Parallel-to-I²C Adapter – [Link]

1 Mar 2011

dangerousprototypes.com writes:

Any car newer than 1995 has a fairly sophisticated computer used to monitor various systems ranging from accelerator pedal position to catalyst efficiency. This is a brief introduction to one example of the hardware used to diagnose automotive systems.

A look inside an OBD2 tool – [Link]

13 Feb 2011

Bridge from USB to I²C: [via]

This circuit provides a direct I²C interface to your PC’s USB port. A USB to 1-Wire® dongle supplies the PC with a 1-Wire master, which controls a 1-Wire I/O extender. This I/O extender has two bidirectional open drain ports, which the PC can write to and read from. By generating the right logic signals on these two ports, the PC can emulate an I²C master.

Bridge from USB to I²C – [Link]

5 Feb 2011

Here an interesting project showing how to interface a common laptop touchpad with an Arduino. Sample code is included. In the video they demonstrate using the touchpad to control LED patterns through a MAX7219 Led Controller [via]

Laptop touchpad interfaced with Arduino – [Link]

25 Jan 2011

This project is about interfacing a SNES controller and 16×2 LCD to a PIC16f84A to type out which buttons are pressed.

Interfacing a SNES controller and 16×2 LCD to the PIC16f84A – [Link]

13 Jan 2011

Badwolf writes:

While soldering a connector to it (yet to get the data out) I found out some hidden functions that can be activated with the use of a simple push-button. [via]

The hidden modes are:

  • H – Hold
  • F – Fast Measurement (screen refresh at each change,way faster)
  • H M – Hold the further opened you get (could be useful for a momentum app)

Adding new features on digital caliper – [Link]

12 Jan 2011

Dan Reetz hates it when manufacturers don’t use standard connectors on their devices, so he hacked his Casio EX-FH100 and EX-F1 Shutter Release/Video/USB cable to find the pinout. [via]

Casio EX-FH100 and EX-F1 Shutter Release/Video/USB Pinout – [Link]

31 Dec 2010

Mike Lu used the four unused wires on one of the RJ45 Ethernet connectors to add serial communication on his RT-N12 router. This allows him to use the serial port for debugging and still use that port for network connection. He used a circuit to output the correct serial signals and connect them to the unused RJ45 pins. Then he used a special adapter to separate the RS232 signals from ethernet. This allow him to use the serial connection without modifying the router case.    [via]

Adding a serial port through an RJ45 connector - [Link]





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