+2

 

+3

 

And we should get ours quicker being on the right side of the pond

 

Very good point!

 

Hi all,

I would like to make a list of people who want to have this gadget,
so far:

1. MarkyUK
2. Barnsie
3. JackJohn
4. v8moise
5. Reverend Sam (private messaging)

Price will be as following (ex shipping):
A) electronics (soldered): €18.00
B) 3D print (painted black): €32.00
C) ELM327 adapter: either €10.00 or €26.00 (explained below)
D) USB car charger and USB cable €6.50 (explained below)

Please drop a message here with which parts you like to order.
also mention which units your device has to display (if you don't program the device yourself):
- Fahrenheit or Celsius (or even Kelvin),
- Miles or Kilometers (or even knots).

Currently I have parts to fabricate 14 units. so when the list exceeds 14 people, they will be dropped on the "waiting list".
Some parts are still to be delivered,
the 3D prints are still to be ordered. I'll wait with this till the name list is complete.

If you don't order the 3D print you'll have to arrange the 3D print yourself (3D print STL file will be provided)

If you don't order the ELM327 adapter you'll have to program the ESP32 device yourself (not that difficult)
The Bluetooth connection to the ELM327 is done by using the MAC address of the device.
Every ELM327 has an unique MAC address. Since that is the case, currently I can not create an universal
firmware update method.

Car charger and USB cable as power supply is optional,
I had this idea using this car charger and a low profile 90° USB cable as power supply, you'll end up with something
like the attached image below. Probably it will stay low enough so the ashtray slider can still be closed.
Since this solution will be without a fuse, I'll add a polyfuse in the circuit.
If you don't order the car charger+USB cable, you'll have to arrange a 12V to 5V converter yourself.

Problems with different types of ELM327 adapters:
The ELM327 adapter I own works perfectly with the ESP32,
recently I ordered a different type of ELM327 which was cheaper but from the same brand,
unfortunately this one I was not able to pair with the ESP32.
I have an even cheaper one on order to see if that one works.
If not, only the "Vgate Icar Pro" is proven to work.

If you think, above prices are too low, please make a suggestion :-) (prices are very close to material costs)
If you think, above prices are too high, you can always go the DIY route (I will provide all needed info here.)
Going the DIY route is encouraged, it's not that hard, and you will learn something.

If later on I still have some PCB's left, I'll will have these for sale separately.

ESP32 programming:
As mentioned above it is working with the "Vgate Icar Pro",
bu there is still some work to do with debugging the programming code.
Currently the push button is working erratically, as is the photo resistor when switching to low or high light intensities.

example car charger + USB cable:

 

I'll take 1!

All of the parts, Fahrenheit, miles

 

Hi Cabrio Bob,

Thanks for this.

All of the parts please. Celsius and miles (if this is a possible combination - if not Fahrenheit plus miles). ELM 327 adapter please.

I am happy to pay, within reason of course, whatever you wish to charge me. No worries at all about you making a profit.

All the best,

Barnsie

 

You’ve done a great job in this!
If the OBD port could handle more than one device at a time, I’d sign up for one, just for the ‘cool’ factor!

 

Please place my order for the whole kit, set up for miles and Fahrenheit.

 

List so far:

1. MarkyUK X X X X x x
2. Barnsie A B C D c m
3. JackJohn A B C D f m
4. v8moise A B C D f m
5. Reverend Sam X X X X x x

I got a private message with some questions,
here are the answers:

1. Did you post the Gerber files to make the PCB board?
Not yet, I'll do this when the PCB's are delivered, and when verified it is OK.

2. What is the process for enabling the EP32 module to pair with the MAC address of the ELM?
None, every time the device turns on it searches for the MAC address:
3. Also, Is there a new code for the ESP module?
See attached ZIP. It will change in the future since it's not optimal yet.
p.s. the push button now has 2 functions: short and long press
short press (<500ms) cycles through the display, long press (>500ms) returns to a preferred display:

 

Same for me, us Brits gotta stick together, just let me know the price and I'll paypal it to you, like Barsie, no issues with you making a profit, we are just grateful

 

God save the Queen! And Cabrio Bob!

 

Hey CabrioBob
Beam me up for the whole "shootin-match" A, B, C, & D.
Thanks!

 

List as of today:



Redrider, I presumed Fahrenheit / Miles for you.
Sam didn't respond yet ...

 

Is the set up you are selling "Plug and play" meaning, just assemble the components? Simple soldering? how difficult will this assembly be on a scale of 1-10 in your mind? Is the USB Charging port set up for "Quick Charging" and doese the green ring in the digital mock up indicate a light that matches the color (close enough) to the window switch lights? I am interested in the whole set up I believe, it looks awesome! I of course would prefer Kelvin and Knots please.

But seriously, Fahrenheit and Miles!

 

Yes, I forgot to mention Fº and MPH for me. Thanks !

 

Marc,
No assembling needed, soldering is done by me, so yes, it's plug and play. (or you choose differently)
The "green ring" is part of the stock cig lighter equipment in the car.
The USB charger I have chosen is not QC3.0 compliant, since those have a variable volts output. It will have a stable 5V output at max 2.1A.

 

Alright then CabrioBob! I will take the whole setup! F and Miles please!

 

If you can put me on list as well, if its plug and play I am in as well.

Thx

 

Canadacat, could you provide your preferred units? I assumed °C / KM for Canada.
and yes, when ordering the complete kit it's plug&play.

List as of today: