DIY Arduino Schematic | #23

[James]

Video

Related Videos

AddOhms Schematics Playlist on YouTube. (The first 3 AddOhms Episodes.)

Future

Part 2 will cover the PCB layout and Part 3 will be turning / programming the board.

[James]

Links:

• GitHub Repo with Schematic Files
• DIY Arduino Checklist [baldengineer.com]
• ATmega328p Datasheet [microchip.com]
• Crystal Oscilliator Basics [microchip.com]
• They're Just Capacitors? [youtube.com / supplyframe Hardware] More info on caps

Correction

When talking about the load capacitors, I said “2-22pF” when clearly the data sheet says 12-22pF. (It’s in the script as 12, I just said it wrong.)

[hkoutram]

For #23 DIY Arduino Schematic, the magic word is DIODE

[yoav]

Hello,

First of all Thank you James!!! I Have learned a lot thanks to you.
After reading and watching the video few times i still don't feel comfortable to select the right crystal and capacitors from digikey.

Thanks,
Yoav

[baldengineer]

It's a 16 MHz crystal and 22pF capacitors. I recommend C0G ceramic capacitors like C0805C220K5GACTU.

[yoav]

I found only two 16MHz 18pF in digikey:

Fox - FC3BACALI16.0-T3
Epson - FA-238 16.0000MB-C

In the data sheet we saw that it possible to use 12-22pF
What do you think?

[James]

I use the Epson because I have a reel of them.

In the data sheet we saw that it possible to use 12-22pF

I already said: "... and 22pF capacitors. I recommend C0G ceramic capacitors like C0805C220K5GACTU."

[James]

10 posts were split to a new topic: Mark's DIY Reflow Oven