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Use a delay() function to slow it down.

Hi, i am currently trying to connect wishield 2.0 (http://www.asynclabs.com/store?page=shop.product_details&product_id=26&category_id=6&vmcchk=1) with my arduino mega board.My idea was to control my RC plane with I-phone. But I am not sure how to connect wishield and arduino mega. Can you tell me how to do step by step? thanks in advance.

It use's SPI communication.  The Wishield Library includes info and examples of usage: http://www.asynclabs.com/wiki/index.php?title=WiShield_library

Regarding the creation of a Wiegand output, I stumbled across this tutorial: http://arduino.cc/en/Tutorial/SecretsOfArduinoPWM and within this tutorial an additional example and manual creation of PWM: http://www.arduino.cc/playground/Main/PWMallPins

The tutorial describes different methods of manipulating the PWM duty cycle which to me, sounds as if you could use two output pins to create a Wiegand output directly with Arduino rather than a C library. The question is which method would be best, namely:

You can't say which is "best" without an application in mind.  Each will have their merits, but I'm sure only one is the ideal solution in a particular scenario.

Hi BigG,

Since you appear to be knowledgable about both forms of wave generation, why don't you do some experiments and share the data?  Maybe we can assess the merits of both on some test applications and give the whole group some useful data.

Just a thought,

DAB

Hi, I change in my arduino chip, befor use atmega 328, now I put in socket atmega8 16PU, and dont work he, what is problem.

Thanks in advance

You need a 328 chip with the correct Arduino bootloader.

Currently the Arduino "system" supports ATmega328, ATmega168, and ATmega8 chips.  It does have to have a bootloader pre-installed, and you have to select an appropriate "board" in the tools menu.  If you put an Atmega8 in an Arduino Uno board, you should tell the IDE that you have an "NG or older with atmega8" (the "board type" has more to do with the chip and the  bootloader than it has to do with the rest of the board.)

Hi, im new to arduino but im doing a project whereby i want to control a 3 digit seven-segment display with 74HC595 shift register and with an analog keypad input. how do i do the code because i have tried and nothing appears happens. im confident of my connection but sometimes my arduino has problems, it can't be detected by my computer and that has let to a few problems with uploading the code to the board so sometimes i get confused when my ardunio has problems or if the code is not the right one for my seven-segment. Can you help me with this?