[time-nuts] Flash!!! FA2 works on Arduino Tablets !!!

[Didier Juges]

The interface from the FA2 is USB, so there is no need (and no way) to go
through a DB9. I recommend using an adapter to go from your tablet
(typically micro-USB or USB-C) to a USB-A socket, then use a standard USB-A
male to USB-B male cable going to the FA2.

One issue: once the tablet is connected to the FA2, there will be no way to
charge the tablet, so start with a fresh battery...

The app keeps the screen activated as long as the battery is >50%. After
that, Android will put the app to sleep and recording will stop and the
data that is not saved will be lost. There are a number of ways to deal
with that, I am waiting to see actual use cases to come up with the best
way. The battery life limitation is clearly an issue.

You can buy cables that have a charging port but they only power the target
(the FA2 in this case), not the tablet. I believe that you cannot charge
the battery when the USB port is used as a master because as a master it is
intended to deliver power, not receive it.

Didier KO4BB

On Sun, Oct 20, 2019, 10:19 AM Jim Harman <j99harman at gmail.com> wrote:

> Didier,
>
> This looks very useful. Is there a specific DB9 to USB-C cable that you
> would recommend, or would you use a USB-A (female) to USB-C adapter with a
> standatrd USB-A to DB9 cable?
>
>