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16  Forum 2005-2010 (read only) / Troubleshooting / Re: Arduino uno and Mac on: October 15, 2010, 05:45:19 am
Mike, the Uno definitely has problems through a hub under 10.6.4. It also wants to add a new connection for every port you plug the thing into, which is sub-optimal. See my experiences here:
17  Forum 2005-2010 (read only) / Troubleshooting / Re: Mac crashed when active FTDI/USB serial is removed on: October 22, 2010, 12:40:38 pm
Apple say don't do that with an active, communicating device.
18  Forum 2005-2010 (read only) / Troubleshooting / Re: Uno USB invisible to OS X on: October 12, 2010, 08:56:00 pm
On the Console, I'm now getting:

10-10-12 21:46:17       kernel      USBF:      64159.957      AppleUSBEHCI[0x8143000]::Found a transaction which hasn't moved in 5 seconds on bus 0x26, timing out! (Addr: 6, EP: 0)
10-10-12 21:46:29       kernel      0        0 AppleUSBCDC: start - initDevice failed

Bus 0x26 is the hub I use.

Directly connected, I get:

10-10-12 21:49:49       kernel      AppleUSBCDCACMData: Version number - 4.0.1, Input buffers 8, Output buffers 16

I no longer get new network devices (what would be the settings if I did?). Only direct connection works; through the hub doesn't. So the only way I can get an Uno to work along with my two other Arduino boards is to have two USB cables, and make sure I never draw any current that could come close to doing damage to my Mac ...

19  Forum 2005-2010 (read only) / Troubleshooting / Re: Uno USB invisible to OS X on: October 02, 2010, 04:29:53 pm
I don't get anything in the console.

I've been using a hub up to now to protect my Mac. When I directly connected the Uno to the computer, I got the Network Preferences dialogue like everyone else. This worked fine.

When I plugged the Uno back into the hub, I got the same Network Preferences dialogue, and a new Uno USB serial device. I switch to it in the programming interface, but got 'avrdude: stk500_recv(): programmer is not responding' timeouts.

Basically, the thing doesn't work unless it's directly connected, and I now have to lop off the excess non-functional "Arduino Uno 2" and "Arduino Uno 3" devices when I start up. Frustrating.

Incidentally, a friend who is a USB developer at Apple recommended I install the USB debug kit, I haven't, yet.
20  Forum 2005-2010 (read only) / Troubleshooting / Uno USB invisible to OS X on: October 02, 2010, 10:28:40 am
Just got my Uno after finding semi-permanent projects for two previous Duemilanoves. Upgraded to Arduino 0020. After rebooting, and power cycling the Uno, there's still no serial port for the Uno.

The board is noted under Linux, which reports an unknown device with ID 2341:0001. On my MacBook (10.6.4), System Profiler lists:
Communication Device:

  Product ID:      0x0001
  Vendor ID:      0x2341
  Version:       0.00
  Speed:      Up to 12 Mb/sec
  Location ID:      0x24110000
  Current Available (mA):      500
  Current Required (mA):      Unknown (Device has not been configured)
There are no /dev/tty* or /dev/cu* devices that correspond to the device.

Please let me know what I'm doing wrong.[/font]
21  Forum 2005-2010 (read only) / Interfacing / Re: Looking for connector for Microsoft Pharos GPS-500 on: January 09, 2011, 11:23:16 am
I picked up one of these recently for $20.

The black USB-serial adaptor is held together by a screw under the label. Inside is a Prolific PL2303 converter. The GPS-500 talks TTL serial at 4800 bps.

After cutting part of the back off the gps module to get at the connectors, I soldered on three wires. The connections are, from left to right from the back with the connector at the bottom:

1 - not connected
2 - +5V
3 - GND (which I didn't connect)
4 - Data
5 - GND (which I did connect)
6 - not connected.

When powered up, the blue LED in the unit should glow. I get a decent fix indoors. Works fine with the TinyGPS library.

I got the pinout here: and here:
22  Forum 2005-2010 (read only) / Interfacing / Re: Energy Monitor on: November 17, 2010, 02:28:05 pm
A few people - including myself - have tried to get the Black & Decker Energy Monitor or the (very similar) Blueline PowerCost Monitor to talk to Arduino. Success has been ... limited.

Both units read pulses from the utility meter, so don't suffer from CT/ADC inaccuracy. They transmit on the 433MHz range, but I don't know of anyone who's successfully deciphered the data.
23  Forum 2005-2010 (read only) / Interfacing / Re: Arduino has its own USB Vendor ID!!  ? on: October 02, 2010, 10:38:04 am
Looks like the Uno has  Vendor ID:      0x2341, Product ID:      0x0001.
24  Forum 2005-2010 (read only) / Workshops / Re: Arduino Interest in Toronto or Waterloo, Ontario on: January 21, 2011, 03:09:35 pm
Don't know if anyone noticed this slightly specialized workshop in Toronto in March:

Expand the potential of cinema art with Arduino  
Friday March 18th 6pm-10pm
Saturday March 19th 12pm-5pm
Sunday March 20th 12pm-5pm  

Cost Members $195 Non-members $225  Enrollment is limited to 8  

Explore the possibilities of Arduino, a versatile program for making interactive art. Arduino is a tool for making computers that can sense and control more of the physical world than your desktop computer. It's an open-source physical computing platform based on a simple microcontroller board, and a development environment for writing software for the board. This three day intensive with LIFT Artist In Residence Enrico Mandirola will give you the knowledge and hands on training to bring Arduino into your cinema art practice.  LIFT will provide basic Arduino hardware and required materials. Please provide an outline of your proposed project to by Friday March 11th 2011.


There's also a small display of Arduino-based kinetic art on the ground floor of 401 Richmond right now.
25  Forum 2005-2010 (read only) / Exhibition / A musical soft drink can for St Andrew's Day on: November 29, 2010, 11:29:00 pm
Okay, this is pointless, but very, very Scottish.  smiley

For St Andrew's day, I've made a can of Irn-Bru — the best-selling soft drink in Scotland — play the Scottish national anthem. Here's what it sounds like:

For those of you who really can't get enough of drinks containers playing national anthems, I've also done:
  • O Canada —
  • The Star Spangled Banner —
The programming is trivial. It's just the RTTTL example from the Tone library, with RTTTL generated from a midi file sent through the converter here:

The wiring is also trivial: just a flat piezo element wired between port 13 and ground. Fixing the piezo to the container can be tricky. For metal cans, a tiny drop of cyanoacrylate will do. For paper cups, a clear glue, applied liberally and allowed to dry, seems to be reliable.

26  Forum 2005-2010 (read only) / Bar Sport / Re: How to 'slow down' closing of circuit (flashgun) on: October 25, 2010, 02:47:42 pm
You might have more luck searching for "X Sync" plus your camera name. M bulbs typically took 20ms to reach peak brightness, while xenon is instantaneous. It's probably more mechanical than electrical, let alone electronic.
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