×

SparkFun Electronics will be closed on July 3rd, 2015 in observance of Independence Day. Any orders placed after 2:00pm MT on July 2nd will be shipped out after the weekend. Thanks!

avatar

TerryKing

Member Since: August 15, 2008

Country: United States

Profile

Bio

Terry has designed radio stations, recording studios, broadcast equipment, intelligent machines and special computer languages for IBM, and has worked as a broadcast journalist covering elections, fires, riots and Woodstock. He is now ‘retired’ and teaching electronics, robotics, photography and journalism to young people.

Role

Engineer, Photographer

Organizations

Disorganized

Spoken Languages

English, French, very little Chinese and Arabic

Programming Languages

Archaic: SPL-7, JCL, MSP-7, APL Now: C, C+, PASCAL, PHP, Arduino C

Associations

Who would associate with me?

Universities

UCONN, SUNY(teaching), KAUST

Expertise

Electronics, signals, RF, RTOS, Photography, Building Design

Interests

Engineering, Photography

Websites

terryking.us yourduino.com

Publications

Old Stuff, Web Stuff

  • Here’s a photo that shows a visible difference between Genuine and Fake FTDI chips: http://yourduino.com/docs/FTDI-GOOD-FAKE-TerryKing1014.jpg This correlates 100% with those plugged into a machine with “bad” 2.12.0.0 FTDI driver. Fakes are “bricked” (PID set to 0000) the Genuine run fine. This is with a sample of 12 bad and 23 good chips.

  • I have several Genuine and several fake FTDI on Arduino derivative boards. The fakes have laser etched labels that are quite well done. BUT the “Pin 1” dot in the plastic is just a little different. Genuine is large dot, not very shiny Fake is slightly smaller dot and quite shiny You can see this clearly on this photo: http://s.zeptobars.ru/ftdi-FT232RL-real-vs-fake.jpg

  • Careful!! The sample schematic shows a 50 ohm resistor in series with the LED. This is WAY too little for an Arduino I/O. 220 ohms or more would be OK.
    The specsheet shows the 50 ohms for testing speed with a signal generator, it’s NOT for general application.

  • Hi, I’ve been working on documenting more how-to on relay and power control. You may find this helpful:
    http://arduino-info.wikispaces.com/ArduinoPower
    Regards, Terry King ..On the Red Sea at KAUST.edu.sa
    terry@terryking.us

No public wish lists :(