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Message from discussion MAXADC-RTD
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Neil Funk  
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 More options Apr 11 2012, 11:00 pm
From: Neil Funk <infinitedownt...@gmail.com>
Date: Wed, 11 Apr 2012 23:00:20 -0400
Local: Wed, Apr 11 2012 11:00 pm
Subject: Re: [i3detroit-public] MAXADC-RTD
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Showed up on my Linux box as a HID device. Haven't tried to talk to it
beyond that though.
-Neil

[410114.788282] usb 2-2.4.3: new full-speed USB device number 7 using
ehci_hcd
[410114.802261] hub 2-2.4:1.0: port 3 not reset yet, waiting 10ms
[410114.886500] usb 2-2.4.3: skipped 1 descriptor after interface
[410114.889249] usb 2-2.4.3: default language 0x0409
[410114.894872] usb 2-2.4.3: udev 7, busnum 2, minor = 134
[410114.894876] usb 2-2.4.3: New USB device found, idVendor=0b6a,
idProduct=2bcd
[410114.894879] usb 2-2.4.3: New USB device strings: Mfr=1, Product=2,
SerialNumber=0
[410114.894883] usb 2-2.4.3: Product: MAXQ622 HID Demo
[410114.894886] usb 2-2.4.3: Manufacturer: Maxim
[410114.894980] usb 2-2.4.3: usb_probe_device
[410114.894985] usb 2-2.4.3: configuration #1 chosen from 1 choice
[410114.897389] usb 2-2.4.3: adding 2-2.4.3:1.0 (config #1, interface 0)
[410114.897433] usbhid 2-2.4.3:1.0: usb_probe_interface
[410114.897436] usbhid 2-2.4.3:1.0: usb_probe_interface - got id
[410114.907536] generic-usb 0003:0B6A:2BCD.0005: hidraw4: USB HID v1.10
Device [Maxim MAXQ622
HID Demo] on usb-0000:00:13.2-2.4.3/input0
[410114.907565] drivers/usb/core/inode.c: creating file '007'

On Apr 10, 2012 11:27 AM, "Paul Kerchen" <p...@whirlingchair.com> wrote:

> Do we have access to a USB protocol analyzer?  The device itself appears
> to present itself as a standard USB device (because it didn't require any
> special drivers before being available to their app), so it might not be
> too hard to talk to it and RE the protocol.  I'll investigate further and
> report my findings....

> Paul

> On 4/9/2012 6:50 PM, James Kemp wrote:

>> OK, it's cute.  And who could complain about something that's free?

>> BUT

>> Without any USB documentation about the protocol it's kinda useless.
>>  Sorry to be blunt.  Without the magic docs it's going to be hard to make
>> use of this thing.

>> Maybe, by removing the micro on the backside, a direct connection to the
>> SPI bus going to the ADC chip could be made.  Lots of docs about the SPI
>> protocol going to the ADC chip.  By going direct, could also make use of
>> the digital IO on the ADC chip.  I'm thinking of a reflow oven app here.
>>  Read the ADC to know the temperature - use the digital IO to control a
>> Crydom solid state relay that turns the oven on and off.  Could all be on a
>> little daughter card on an Arduino (a shield in Arduino speak - I think).

>> Anyway, without some kinda hack this baby is not much use.

>> Anyone else got ideas for this thing?  I hate to give up so easily on
>> free stuff.
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