How to start small-scale production of electronic circuit?

There is a successfully working prototype of the device + in-house software to it. In summary then a bunch of SoC + CANbus + GSM modem.
In the current implementation it consists of wires and separate components: Orange PI + Cantact + SIM 900L. All was going more for themselves and were sawn file is more or less stable product.

There is potential interest from customers in the finished device but I even don't know how of the pile the component to make a solid device, which it would be possible to show your clients well and, ideally, to organize small-scale production
April 4th 20 at 00:54
4 answers
April 4th 20 at 00:56
JLCPCB
Bought the boards, soldered the components. The soldering of SMD components in there too, like you can immediately order.
Well, if it is assumed that a potential customer will use the device as a kind of black box, get any box to it to tie all the necessary interfaces, the power and stick the label from the printer.
Thanks for the tip.
But not solved, the question remains - for order fees need ready-made "wiring" (or schema - not uveren what is called correctly). The main problem here - how do you draw them ? - Gwen.Ferry74 commented on April 4th 20 at 00:59
@Gwen.Ferry74, for example in this video the man explains as what to do and what. In General guides on the Internet quite a lot on wiring boards.
If the scheme is not complicated and mainly consists of ready-made modules, there is nothing to be ashamed of will not to shove everything in a box and cross-connected wires. - rebeca_Gislason commented on April 4th 20 at 01:02
@rebeca_Gislason, orange pi runs clearly at a frequency of about 1 GHz. So wiring the newcomer almost certainly will not work. Option with box and switching rules for individual products. Small-scale variant is redundant to collect their finished modules.

Although, there is still the author has not explained what he's hiding under the word "small-scale" :) - Phoebe.Lindgren commented on April 4th 20 at 01:05
April 4th 20 at 00:58
Taking into account the last paragraph, I can advise to hire someone who'll build boards for your project, prepare BOM sheet, make a prototype of the project and will accompany the whole story in the production.
April 4th 20 at 01:00
Well, as I say, attachment is possible and unsolder in the same factory boards, but the microcomputer is unlikely. Easiest seen as a dongle for all components. Nothing prevents then it is in the body to pour the compound under the neck, not to reseedings and from wanting to scratch the inside. The Chinese sell so thousands of cutters, 3d printers, not steamed.

If you want an all in one try to talk directly with the same hardkernel, but get ready for production orders of thousands of pieces
April 4th 20 at 01:02
JLCPCB is the right choice.
Need to raise fees to prepare the file format Gerber.
To prepare the BOM file with the list of components, all to send in JLCPCB.
Payment card delivery to the door.
Keep in mind if the order is worth more than 200 Euro and the customs officers feel that it is a commercial cargo, then it's wrapped up in customs, and then you have to clear, and it is, it is still fun, sometimes it's easier to refuse to load.

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