I/O Extender availability

http://jbperf.com/io_extender/index.html
http://jbperf.com/io_extender/tinyIOx.html for the TinyIOx

I/O Extender availability

Postby jbelanger » Sun Nov 01, 2009 6:50 pm

The I/O Extender board will be available later this week in limited quantity. I have some assembly to done, code to loaded, and testing to be done to make sure that the boards are fully functional before shipping them.

The cost will be US$125 as shown here (but will be a V1.1 version)

Image

I may be able to provide some of the needed discrete components to complete the assembly but you will need to procure the enclosure (Hammond 1455L1201 or 1455N1201) and the external DB37 connector and hood.

Each board will have the latest I/O Extender code which is compatible with the latest MS2/Extra 3.0.3 code and with the latest MS3 code. I will also have a downloader available here that will allow the code to be updated through the MS2 or MS3 CAN connection.

The Logger board will be available later.

Jean
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Re: I/O Extender availability

Postby prof315 » Mon Nov 02, 2009 9:36 am

sweet!
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Re: I/O Extender availability

Postby phj420 » Mon Nov 02, 2009 3:03 pm

Yes! :D paypal right? sign me up for one. perfect timing. Please let us know when you are ready to receive payment and ship them out.
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Re: I/O Extender availability

Postby phj420 » Tue Nov 03, 2009 10:25 pm

Jean,
Are you accepting payments now for the i/o extender? I would like to try and get it setup or at least get the materials that I need for boost control, table switching, launch control wheel speed input and baro correction. Can you supply me with a bom? I would also like to get a signal interceptor board at the same time if they are still available.

thanks
Anthony
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Re: I/O Extender availability

Postby jbelanger » Tue Nov 03, 2009 10:37 pm

Anthony,

I should have a new batch of signal interceptor boards in a day or 2 which is also when I'll have some I/O extender boards available. I'll set one of each aside for you.

As for the BOM, it should be pretty much the same thing as what the MS2/Extra manual shows for each feature. I'll have a look and let you know.

Jean
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Re: I/O Extender availability

Postby tpsretard » Wed Nov 04, 2009 8:18 am

At a later date will you be offering it as a full kit,
or will it always be a bare board..
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Re: I/O Extender availability

Postby jbelanger » Wed Nov 04, 2009 10:29 am

It's possible that I will later.

However, the main issue (besides enough volume) is that the circuits are generic circuits and require some customization of the needed components depending on the application. For example, the ADC circuit may not be the same for a Bosch temperature sensor or a GM sensor which may require a different bias resistor. And most analog sensor will not require all the components or the same RC values. And something similar exists for the high current and low current circuits.

That gives the highest level of flexibility to get exactly what is needed but requires a little additional work.

As for the enclosure, the issue is that of initial investment and volume.

Jean
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Re: I/O Extender availability

Postby jbelanger » Thu Nov 05, 2009 12:47 am

phj420 wrote:Jean,
Are you accepting payments now for the i/o extender? I would like to try and get it setup or at least get the materials that I need for boost control, table switching, launch control wheel speed input and baro correction. Can you supply me with a bom? I would also like to get a signal interceptor board at the same time if they are still available.

thanks
Anthony

Anthony,

Did you mean launch control and wheel speed input or launch control with speed input? The first case it's easy and possible while the second case is not possible with the current MS2/Extra code. Also you'll have to decide what type switching you'll be using for launch control and table switching inputs: active low input or active high input as shown here. Either can be done with the board.

As for baro correction were you planning on using and external map sensor or did you want to use one in the I/O Extender case? There isn't a specific place for one on the board but you may be able to use the proto area if you chose the right sensor.

Jean
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Re: I/O Extender availability

Postby jbelanger » Thu Nov 05, 2009 6:18 pm

Anthony,

For boost control, you'll need:
Code: Select all
     Qty    Part                Digikey part#
Q1   1      TIP122              TIP122FS-ND
R16  1      1K Ohm resistor     1.0KEBK-ND
D3   1      1N4001 diode        1N4001FSCT-ND


For table switching (assuming active high input):
Code: Select all
          Qty    Part                Digikey part#
Q10       1      2N3904              2N3904FS-ND
R31,R33   2      1K Ohm resistor     1.0KEBK-ND
R32       1      2.2K Ohm resistor   2.2KEBK-ND

If you want to use table switching for both fuel and ignition, then double the numbers above (and use Q11, R34,R36,R35).

For launch control (assuming active high input and assuming you used Q11 for table switching):
Code: Select all
          Qty    Part                Digikey part#
Q12       1      2N3904              2N3904FS-ND
R37,R39   2      1K Ohm resistor     1.0KEBK-ND
R38       1      2.2K Ohm resistor   2.2KEBK-ND


For wheel speed input, you don't need anything if the sensor(s) is a VR sensor or a Hall sensor that provides 12V or 5V. You simply connect the sensor to one of the VR conditioner input: both inputs for a VR sensor and only one for a Hall sensor. If you have a hall sensor that provides a grounding signal, you'll need a pull up resistor to either 12V or 5V depending on your sensor. The resistor can be anything from 1K to 4.7K Ohms.

For baro correction (assuming you don't have the sensor):
Code: Select all
     Qty    Part                Digikey part#
     1      MPX4115A            MPX4115A-ND
R41  1      1K Ohm resistor     1.0KEBK-ND
C23  1      0.22uF capacitor    399-4288-ND


Jean
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Re: I/O Extender availability

Postby jbelanger » Thu Nov 05, 2009 6:50 pm

The boards are now available but since the quantity is limited I won't put a Paypal button on my site. You'll need to contact me directly to get one.

Jean
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Re: I/O Extender availability

Postby phj420 » Fri Nov 06, 2009 8:34 pm

Jean,
Does the board come with everything to finish the vr conditioner circuit? It appears that the board has been designed to have all of the circuits built with jumpers used to turn on/off things as needed. I realize that you need to use the appropriate bias resistors to make the ADC circuit work with your sensors but it seems that you can just build everything else then just jumper them on or off?
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Re: I/O Extender availability

Postby jbelanger » Fri Nov 06, 2009 9:17 pm

The VR conditioner circuits are complete. As you say, you just need jumpers to connect them to the DB37 and more jumpers to connect them to the CPU. So if you don't need one circuit, you can use the DB37 pins for something else (using the proto area if needed) and you can also use the CPU pin for something else.

The other circuits also have jumpers to the CPU pins but they don't have jumpers to the DB37. However, if you don't use the circuit, you can just leave the components off and you can have access to the DB37 pins using the corresponding components pad (if you need a spare DB37 pin).

So you can build all the circuits if you want and do as you say and just add the jumpers to the circuit you want to use. You can also install the jumpers and just ignore the data from those circuits. Having the circuit connected or not through the jumper will not have an impact on the CPU.

Jean
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Re: I/O Extender availability

Postby phj420 » Mon Nov 09, 2009 12:32 am

all of the components listed above are available from Digikey for about 12 bucks. So my question is:

For $125 what are all of the components that will be shipped? What circuits will be included?
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Re: I/O Extender availability

Postby jbelanger » Mon Nov 09, 2009 12:41 am

If that makes a difference for you I can provide the discrete components listed (and to anyone who asks) since I have them here. But I don't have the sensor and I won't carry or include that.

Jean
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Re: I/O Extender availability

Postby jbelanger » Mon Nov 09, 2009 5:03 pm

I have decided to include a few discrete components with the board: 5 of each: 2.2K, 1M resistors, 0.001uF, 0.22uF capacitors, 1N4001 diodes, PN2222, TIP122 transistors; and 10 1K resistors. It will at least allow people to make a few of the circuits.

Jean
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Re: I/O Extender availability

Postby tpsretard » Mon Nov 09, 2009 6:33 pm

going over my own needs for this board i think that would make everything i want.
Actually it will even have some left overs :)
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Re: I/O Extender availability

Postby tpsretard » Fri Nov 13, 2009 11:28 am

Got mine and making it up now :)

Harness starting to go together.
CIMG0518.JPG
CIMG0518.JPG (250.03 KiB) Viewed 16220 times


Was cut using an old mill, Took all of 5 min to do.The cut was a little rough as we did not lock the head in place properly and it stated to push the head back up.
O well, still works well..
CIMG0511.JPG
CIMG0511.JPG (204.56 KiB) Viewed 16220 times
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Re: I/O Extender availability

Postby jbelanger » Fri Nov 13, 2009 11:35 am

That looks good! Nice job!

Jean
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Re: I/O Extender availability

Postby tpsretard » Sun Nov 15, 2009 1:12 am

It seems that i might have a fuel pump that is giving up the ghost, this got me thinking..

Could i use one of the ADC inputs to long something like a VDO pressure sensor, or some other type, like the 100psi sensors that come with defi guages.
i do not want a correction map or anything just to be able to data log it :)
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Re: I/O Extender availability

Postby jbelanger » Sun Nov 15, 2009 1:23 am

If the sensor gives a 0-5V signal then you can connect it to one of the ADC inputs. And if you configure your MS and I/O Extender for ADC polling then it will be in your MS data log. You then just need to use the sensor specs to transform the ADC count (which is equivalent to the 0-5V signal) into the correct value by putting that in the ini file.

If you're not sure on these give me a link to the specs and I'll have a look.

Jean
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