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Author Topic: MM900EV1B dimensions - relative board X/Y of J2 from CN3  (Read 16924 times)

hdc

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MM900EV1B dimensions - relative board X/Y of J2 from CN3
« on: August 25, 2020, 05:57:28 AM »
Hello all - hope everyone is doing well,

On the MM900EV1B board, what is the position of the

   J2 connector (dual-entry SPI master)

relative to the

   CN3 connector (40-pin external I/O) ?

For example, J2 pin 1 relative to CN3 pin 1 or 27 or each
relative to the origin marker on page 6 of the MM900EVxB
Datasheet v1.0.

Thanks in advance.
« Last Edit: August 25, 2020, 02:58:07 PM by hdc »
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Re: MM900EV1B dimensions - relative board X/Y of J2 from CN3
« Reply #1 on: August 26, 2020, 04:32:50 PM »
Hello,

Here are the measurements taken using Altium Designer:

CN3 Pin1 (topside)
X = 3.37mm
Y = 3.9mm

J2 Pin1 (bottomside)
X = 36.375mm
Y = 76.43mm

We can also supply a 3D step model of the board which will allow you to take you own measurements.
If you would like this, please contact us via email.

Best Regards,
BRT Community
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hdc

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Re: MM900EV1B dimensions - relative board X/Y of J2 from CN3
« Reply #2 on: August 26, 2020, 08:58:40 PM »
Thanks very much.  I'll follow-up by e-mail;  having a step model would be useful as well. (update - e-mailed the support.us address.)

David
« Last Edit: August 26, 2020, 09:34:27 PM by hdc »
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Re: MM900EV1B dimensions - relative board X/Y of J2 from CN3
« Reply #3 on: August 27, 2020, 10:02:08 AM »
Hello,

OK we have received your email and will send across the 3D step model of the module.

Best Regards,
BRT Community
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hdc

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Re: MM900EV1B dimensions - relative board X/Y of J2 from CN3
« Reply #4 on: December 23, 2020, 07:46:33 PM »
Following up to thank you for the support here and by e-mail.

After clarifying my question we ended up using:

X = 33.005 mm
Y = 74.26  mm

as the position of the pin center for J2-1 relative to CN3-1. 

These (unofficial) dimensions worked well for us.

Thanks again,
David
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