Board 1.3 vs 1.4

Posted on Fri 14th, November 2014

• #1

favo

Hi!

I've received two new Espruino boards today which are Rev. 1.4b while my old one was Rev 1.3.

Out of curiosity, whats the difference between them both? I couldn't find any details about it on the website or github.

Cheers,
Mario
• #2

Gordon
Ahh - I'm waiting until the remaining stock of 1v3 in distributors has cleared before I update the docs.

Basically:
- CE Approval
- 32kHz crystal on board (it's much better at keeping time accurately now)
- Pads for a Lithium Ion charger IC (if you want to fit one)
- Slightly moved, but much stronger Micro USB connector
- Much lower power voltage regulator - the old board drew 0.1mA in sleep, this one draws 0.03mA!
- solder jumpers so you can turn the reset button into a second general purpose button
I think that's it, but there could be a bit more...
• #3

favo

hehe .. okay, thank you for the quick overview, sounds like a good upgrade!
• #4

user47006

Hello Gordon, will you publish the eagle files version 1.4 in GitHub?

actually , I'm interested in the schematics pdf for the v 1.4

Thank You
• #5

Gordon
Sure. I've just attached a schematic, but I seem to have a few copies of the files here (copies got send backward and forwards with Seeed) so I want to be sure I've got the correct versions before I update GitHub!

1 Attachment
- Espruino v1.4c.pdf

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