I asked a similar question not long ago but I feel the answers though very useful got a little side tracked so I'm trying again.
First I'm a total noob in electronics so I really ask you to be as clear as possible if you feel like helping out.
So at my work we play some ping pong at times and we are really bad at remembering scores and we are often distracted by supporters and helpdesk personal asking us questions and stuff so I build a little circuit that controls six 7-segment LEDs and wrote a program that takes input from 2 buttons to control the program.
The prototype is done now and I want to turn my prototype into a real product. Not a mass produced product but I want to build a score board and get some bigger LEDs and put it up on the wall so we can use it.
I was planing to make this a short post for fear of loosing you guys in too much text but I hope you are still here. I just needed to get the setting right.
My problem is that I have NO idea what components I need to make the chip run when taken off the arduino board. I know that stuff that goes from the pins but what is needed to make the chip run.
Only thing I know to get is a power supply that outputs about 5 volts and plugs into a wall outlet.
As with he arduino prototype boxes around is there a ATMEGA328 box set that can be used when building the final prototype with all the necessary components to make it run?
As Mike pointed out, the stand alone page would have just about all the answers you need. However, another thing you can do is look up the datasheet for the specific Atmel you want to use. www.atmel.com has all the information you would need.
Honestly, you can run a 328p with absolutely nothing, just adding power to it. Connect the SPI pins to another Arduino and download code to it. Read the datasheet to find out what the various pins do and you can hook up your LEDs to it and you're done.
All you need: 16 mhz xtal, two 22 pf caps, 4 100nF caps, 10K resistor, atmega328p-pu.
Couple of buttons for entering the score.
MAX7219/7221 to control up to 8 common-cathode 7-segment displays. Making the digits too? Or buying something? I made my own with 3 highbrightness LEDs in parallel per segment. (superbrightleds.com)
Can see it at the link in my signature.
Current set resistor, ~22K should do it.
5V 2A wallwart.
Im still going to use the components from my old post. Its just the parts about getting the chip running I have trouble with.
But now I have a better understanding. Actually I thought I need allot more that this. After posting this thread I found some youtube vids also and it looks really easy.
"If I buy a ATMEGA328 will it need to be bootloaded to be used and programmed by an Arduino One board?"
Depends on whether you buy a part with a bootloader installed already.
If blank, then you use the Aruiono One as bootloader, and use the program Westwf wrote to download a bootloader into it.
Need to wire up the blank with reset resistor, xtal, 22pf caps, at least one 100nF cap; then connect up SCK to SCK, MOSI to MOSI, and D10 (I think) from master to Reset on slave.
So you are saying that if I buy a blank one I'll be able to upload the bootloader onto it via a special program using my arduino uno board and the arduino IDE?
I don't have to buy any special equipment to install the bootloader?
I found this package from oomlout and it contains all the components I need. Now I just need a power jack and Im ready to start. I've got an old power supply for an old Nokia phone.
