[Tinkerphones] New tinkerphone gadgets in Goldelico shop?

H. Nikolaus Schaller hns at goldelico.com
Tue Nov 14 17:37:27 CET 2017

Hi Jonas,

> Am 13.11.2017 um 12:05 schrieb Jonas Smedegaard <jonas at jones.dk>:
> Quoting H. Nikolaus Schaller (2017-11-13 11:38:07)
>>> Am 13.11.2017 um 11:31 schrieb Jonas Smedegaard <jonas at jones.dk>:
>>> Quoting H. Nikolaus Schaller (2017-11-13 08:33:45)
>>>> Am 04.11.2017 um 22:17 schrieb Niels <nift at maclisp.org>:
>>>>> I have been wanting a FST-01 for a while, but not found any place to 
>>>>> buy one.
>>>> I have studied the schematics and it will take less than 1 day to 
>>>> prepare for producing some clone...
>>>> Cost is also reasonable, e.g. something below 30€ seems feasible for 
>>>> tiny quantities (if produced in batches of 10). So it is possible to 
>>>> provide permanent supply.
>>>> What I understood is that it needs some flashing tool to be connected 
>>>> to a jumper. Maybe someone can elaborate this.
>>>> One thing is to be discussed about the USB interface:
>>>> Should we keep the USB-A plug or try to replace it by an Mini-USB-A so 
>>>> that it can be directly plugged into a GTA0x?
>>>> Or even 3 variants with Standard-USB, MiniUSB and µUSB? Or does 
>>>> someone have an idea if multiple sockets are feasible?
>>> I would buy a microUSB model if made - and I believe it could be made to 
>>> work with standard Android for those using F-droid, and therefore have 
>>> potential users among those too.
>> Ah, yes. Many Android devices have an µUSB OTG port.
>> Hm. I wonder if we can build/design one with multiple plugs so that 
>> one-fits-all.
> Uhm, I withdraw my promise to buy one, until I understand if it is gonna 
> be a frankenstein model: I would want something sensible to survive 
> carrying in a pocket (and the pocket surviving that too).

It looks as if the thing can be designed for three different positions
for different USB connectors. The standard USB at one end, the µUSB at the other
and the Mini-USB (GTA04) perpendicular to the board surface so that it does not
stick much away from the GTA04 body. It is like I already do it for the Qi-Charger.

There is no need to install them all three in parallel, so you won't see the
"Frankenstein" :) You just get the same PCB and controller chip.

I am also now thinking about placing components on both sides of the PCB
to make it smaller than the original FST-01. This is a little more tricky
for production, but if we build batches of let's say 10 or 12 it doesn't
really matter.


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