kenfrederick: arduino. digi-sketch *update*

arduino. digi-sketch update

i couldn't let it be that the digi-sketch would have so much jitter. so i ended up getting getting two new pots (both 10k). just swapping out the old pots for the new 10k ones, made a huge amount of difference.

then after talking to my dad he mentioned that if i even out the output power from the arduino i could get even smoother readings. so he drew me up this voltage regulator schematic. using an external 9V DC wall wart and this regulator i'm getting much more even output and then using the averaging function the jitter is much better managed.

i got the parts i needed for the voltage regulator at radioshack but if you're more patient than i am, then i highly recommend using octopart to find your parts.

- 1 9V DC input jack
- 1 7805 voltage regulator
- 1 10µF electrolytic capacitor (blue can)
- 1 1µF tantalum capacitor (yellow)

i began building a custom enclosure for the controls using the obligatory altoids tin. i haven't gotten all the guts inside of it yet (as you can see). i'm still trying to determine what should go inside actually. ~~i'm thinking of making the voltage regulator into a modular "shield" to go atop the arduino, as i may use it for other projects. if/when i decide i'll update this post with a picture~~

i made a "shield" like voltage regulator, the two prongs at the bottom plug into a breadboard, making it much easier to use for future projects

Labels: arduino