Core2duino (Updated)

Step 7 Enjoy!

Now you are ready to use your Core2duino.

Upload some code and see if it works!

I have written a test sketch that turns all digital pins on and back off to test them. Upload the sketch to both Atmega168 chips and check to make sure all pins get power on both chips.

Once you establish that it works, put your thinking cap on and build something that requires 40 I/O pins and then message me and tell me about it!

Comments

[willrandship]

Wait, I'm a little confused.... How do you program the second atmega? Does it just get its own binary? How do you hook it up to program it? Looks cool, I'm just not sure how it works.

[johndavid400]

you can upload the same test code to both Arduino's to see that they work properly, then make up your own code to go on the 2nd Arduino. If you don't yet need a 2nd Arduino (or more commonly, an Arduino Mega) then this instructable is not yet for you. Once you get to the point that you need either more than 6 analog inputs, or more than 20 digital I/O pins, or more than 2 external interrupts, or more than 6 PWM outputs pins..... you will quickly see why this board can be very useful for how cheap it is to make. I used this board to decode a failsafe signal from my R/C receiver to keep it separate from the main processing code, for added safety. If the main processor fails, I can still disable the 200lb bot. You can use it to power 40 LED's, or if you need 12 PWM outputs, or 12 analog inputs, etc....

[willrandship]

Ah. So, two programs for the two arduinos. Don't worry, I see the merits of the project, especially for big bots like yours. I would hate to have that running around my neighborhood.

[krazykuul]

 cool, what's it do