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Automotive +5V
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GigaJoe:
Right,   Burger motorsport device  JB4  ....

There are  2 basic components ... software code , what I have no clue and probably some art of spoofing data ...
And a hardware part ...   that in front of my eyes ...  and:

I literally see missing components, no blocking capacitors
PCB design upside down ,  square pin 1  on PCB not as on chip
mess with positive and negative label
traces going nowhere
6 channels DACs in total -  for 2 MAF output ???
can bus receiver with differential input, don't using a twisted pair
why using DB-25 , and only a few pins , do not parallel it for reliability .
socked MCU ?
plastic case not much water resistance,  at least need conformal coating ....
Then ... there is no even basic protection for input\output signals ports , crowbar zener at least ...  DAC no buffered ...   Vref == Vsuppl without even attempt to clean it ...

Why it cost so much and designed literally as a prototype ...  Like a basic proof of concept not a further ...

I use to fix some radio units for my friend service mechanic,    2-3 cases , I do remember a total shielding , and a a serious filtering where radio, admitting it analog ...   Automotive power full of noises ...

Forgot to say ... to hook bluetooth   they use a screw needle to attach on +5v wire ..  ;  as device used , it already traces of oxidation on some pin's connector, ( white thingi)  ...
JPortici:
Since i'm obviously biased i'm not going to comment on the hardware design, so.. your words :)
I can just say that despite everything it works well enough that they have a strong following from people driving certain brands in certain areas, which explain the pricetag (and my "just follow the instructions, you'll be fine)

I'll also point out the obvious, that device (as ours) can do many different cars with many different sensors. Let it be one or two or ten. If numbers don't scale up it's actually cheaper to just have one single assembly. They use a socketed MCU so they swap different processors (with/without CAN, with different firmwares for different functions) and if you check their forum they were able to engage in the users, which will swap configuration and micros between each other, hats off to them
HwAoRrDk:

--- Quote from: GigaJoe on July 02, 2019, 03:38:54 pm ---why using DB-25 , and only a few pins , do not parallel it for reliability .

--- End quote ---

It appears they have a variety of models all sharing a common form-factor, some with a lot of external I/O, some with few, so I guess they chose a DB-25 as a 'one-size-fits-all'. Although their use of DB connectors inside an enclosure is a bit weird.


--- Quote from: GigaJoe on July 02, 2019, 03:38:54 pm ---socked MCU ?

--- End quote ---

They sell 'upgrade chips' for the end user to swap by themselves, so a socket is understandable, if again a bit weird and outmoded, given the USB and bluetooth functionality on offer in some products. Why no firmware upgrades using those mediums? Maybe these upgrade chips are add-on parts; I notice some of their products have dual PIC microcontrollers inside, so perhaps one can buy the second chip to upgrade the capabilities of a more basic unit? ???


--- Quote from: GigaJoe on July 02, 2019, 03:38:54 pm ---plastic case not much water resistance,  at least need conformal coating ....

--- End quote ---

So they can up-sell you a wanky machined billet aluminium enclosure for an additional $40. :-DD At least you get something with proper weather protection (O-ring seal) for your money...

GigaJoe:
how about rs232 TTL cable with ftdi chip for US$30 as add on ..
or check  fuel wires , 2 wire + needle injector - $30
and Bluetooth android application another $30
and finally  ... Bluetooth module $140 ..



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