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5656  Using Arduino / Installation & Troubleshooting / Re: Webclient W5100 shield works only on port 80? on: May 02, 2012, 06:05:30 pm
Makes no sense to me.

Have you tried changing "GET /search?q=arduino HTTP/1.0"?
5657  Using Arduino / Installation & Troubleshooting / Re: Have you met this problem? Pin 9 cannot analogWrite. on: May 02, 2012, 11:26:30 am
The Servo library uses a timer, possibly the same timer that provides the PWM output for Pin 9.  Check the Servo library documentation to see if they mention such a limitation.
5658  Using Arduino / LEDs and Multiplexing / Re: At a loss. What's going wrong with my code/wiring of multiplexing chip? on: May 02, 2012, 07:37:08 am
I don't see anything obviously wrong.  Perhaps a delay(1) just before the analogRead() would help get stable readings.

What is the value of the fixed resistor?  It should probably be 100k or lower.
5659  Using Arduino / Microcontrollers / Re: Bootloader for Pro-Mini - Atmega328 3.3V 16MHz on: May 02, 2012, 07:22:37 am
There's Pro-Mini for 3.3V at 8MHz but not 16MHz.

That's because you aren't supposed to run an ATmega at 16 MHz with a 3.3v supply.

The bootloader doesn't care what the supply voltage is.  If you overclock your 3.3V ATmega to 16 MHz just use the 5V 16 MHz bootloader.
5660  Using Arduino / Installation & Troubleshooting / Re: Webclient W5100 shield works only on port 80? on: May 02, 2012, 07:13:52 am
Does it work from a web browser when you use "http://address:81/"?
5661  Using Arduino / Installation & Troubleshooting / Re: Where are the files hex saved after Verify on: May 01, 2012, 07:27:22 pm
In Arduino Preferences set "Show verbose output during : [X] compilation [ ] upload"

Then when you verify you will get the verbose output that will tell you where the compile was done.  It will be in the second-to-last line:
Quote
/var/folders/cs/p6yz0z1m8xj9lf0059b_lzw00000gn/T/build8229176203510383123.tmp/Blink.cpp.hex
Binary sketch size: 1026 bytes (of a 32256 byte maximum)

Of course it will be different for each build.
5662  Using Arduino / Installation & Troubleshooting / Re: Webclient W5100 shield works only on port 80? on: May 01, 2012, 07:21:09 pm
Are you using Arduino 1.0?  Are you using Files->Examples->Ethernet->WebClient?

When you changed the IP address to the server on your local network did you also change the line:
Code:
  if (client.connect(server, 80)) {
to
Code:
  if (client.connect(server, 81)) {
5663  Using Arduino / Project Guidance / Re: wiichuck without adapter on: May 01, 2012, 07:16:21 pm
You can cut off the connector and wire directly to the cable.  Leave enough wire on the connector so you can determine which wire goes to which contact on the connector.  They may not have a universal color code like USB.
5664  Using Arduino / LEDs and Multiplexing / Re: Help understanding sensor placement on multiplexing schematic on: May 01, 2012, 07:13:20 pm
Each analog multiplexer connects one of 16 pins to an Arduino analog input.  In the diagram each of those 16 pins has a pull-up resistor.  Those are only necessary if your "sensor" is a variable resistor: LDR for light, Thermistor for temperature, PDR for pressure...  In those cases the other end of the sensor goes to Ground and the sensor/resistor combination acts as a voltage divider.

If your 'sensor' is a potentiometer you should leave out the pull-up resistor.  Connect the ends of the pot. to +5 and Ground.  Connect the wiper of the pot. to the input pin.

If your sensor is some other form of voltage source (0 to 5 volts) you should also leave out the pull-up resistor.
5665  Using Arduino / Microcontrollers / Re: wht would be the boards.txt for Atmega328 bootloaded with optiloader? on: May 01, 2012, 07:02:17 pm
optiloader should put a 328p bootloader onto a 328(non-P), after which you can just use it as if it was an "Uno" 

Optiloader has separate entries for 328 and 328p but the two bootloaders (blocks of hexadecimal) appear to be identical so I'm pretty sure the above will work.
5666  Using Arduino / Project Guidance / Re: isp sketch on atmega8/NG on: May 01, 2012, 08:41:19 am
2. Connected digital pins 10,11,12,13 of ISP to the corresponding target pins.

When using ArduinoISP you connect Pin 10 to Reset on the target board, not to Pin 10.
5667  Using Arduino / Networking, Protocols, and Devices / Re: Using an internal timer and SPI at the same time on: May 01, 2012, 08:33:01 am
Oops...  My mistake.  I thought the (global) volatile arrays and the (local) static arrays had the same name.

Nevermind.
5668  Using Arduino / Motors, Mechanics, and Power / Re: New to servos, need some help on deciding which to buy on: April 30, 2012, 12:21:04 pm
You definitely don't want continuous rotation.

Since you will be needing 18 servos (three per leg) you should probably start with some cheap ($10) ones.
5669  Using Arduino / Microcontrollers / Re: External Flash? on: April 30, 2012, 12:10:48 pm
You can get external SPI FLASH chips from Atmel up to 8 megabytes (64 megabits).

http://www.atmel.com/products/memories/sflash/default.aspx

They come in surface-mount packages so you will need some kind of breakout board.
5670  Using Arduino / Networking, Protocols, and Devices / Re: Using an internal timer and SPI at the same time on: April 30, 2012, 12:05:01 pm
Please note that the "volatile byte" arrays are separate from the "static byte" arrays even though they have the same name.  The static ones exist only to the code inside check_switches().  All the other code uses the volatile ones.  You should probably get rid of the static ones.
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