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Lou

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Joined: 01/02/2014
Location: United States
Posts: 229

Posted: 03:19pm 22 Aug 2014

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Hi All - Introducing the LCDuMite

The LCDuMite is a 44 pin MicroMite processor board mounted to a 16x2 blue LCD display module. On the processor board are 5v and 3.3v regulators, protection diode, PCF8563 RTC with battery, MCP4725 DAC, IR receiver and transmitter, 18B20 temperature sensor, PWM backlight control, programming header, console header, power header, and 26 pin header to bring out the remaining processor pins. A third "Sea of Holes" board may be attached for prototypes, or a custom third board for "production" units. The Sea of Holes board has a barrel connector, protection diode and fuse, 8v regulator, and headers to bring up from the processor board: power, 26 unused processor pins, and display pins in case the display is not used.

Shown here without the Sea of Holes board attached, the LCDuMite is mounted to a prototype board with a PICkit3 for size comparison:

Lou

Microcontrollers - the other white meat

Lou

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Joined: 01/02/2014
Location: United States
Posts: 229

Posted: 03:21pm 22 Aug 2014

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Shown here are the processor board front and rear, Sea of Holes board, and PICkit3:

Lou

Microcontrollers - the other white meat

Lou

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Joined: 01/02/2014
Location: United States
Posts: 229

Posted: 03:25pm 22 Aug 2014

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Shown here are a PICkit3, minimal configuration display module, minimal configuration display module with Sea of Holes board, and full board stack with header connectors:

Compact modules may be built and soldered together with straight header pins, or units may be built using header connectors at the expense larger of module size as shown above.

LouEdited by Lou 2014-08-24

Microcontrollers - the other white meat

Lou

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Joined: 01/02/2014
Location: United States
Posts: 229

Posted: 03:50pm 22 Aug 2014

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Close-up of the processor board:

Note the one flub-up on the board with the thru-hole resistor as a fix.
The unused processor pins are labeled across the bottom of the board.

LouEdited by Lou 2014-08-24

Microcontrollers - the other white meat

Geoffg

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Joined: 06/06/2011
Location: Australia
Posts: 3272

Posted: 04:19pm 22 Aug 2014

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Wow! That is brilliant. So flexible.

Geoff

Geoff Graham - http://geoffg.net

Lou

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Joined: 01/02/2014
Location: United States
Posts: 229

Posted: 04:35pm 22 Aug 2014

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Thanks Geoff,

Enjoy the rest of your travels.

Lou

Microcontrollers - the other white meat

Grogster

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Joined: 31/12/2012
Location: New Zealand
Posts: 9502

Posted: 01:49pm 10 Sep 2014

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Where can I buy a couple of these?

EXACTLY what I need for my next insane idea.....

Smoke makes things work. When the smoke gets out, it stops!

WhiteWizzard
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Joined: 05/04/2013
Location: United Kingdom
Posts: 2927

Posted: 02:46pm 10 Sep 2014

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@Grogster

I have these for sale either as an unpolluted board, OR with an MX170 pre soldered.

I am yet to get all the other SMDs so at the moment I can't offer fully assembled boards - this will change as soon as I order the necessary.

PM me if you're interested in a couple.

WW

Grogster

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Joined: 31/12/2012
Location: New Zealand
Posts: 9502

Posted: 11:42am 11 Sep 2014

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micromite.org to the rescue!

I really like Lou's concept and wanted to order straight away and found MicroMite.org really quick & easy to use. (I have used them more than once - every time they are quick and have a very high level of customer service)

Automated emails to confirm your order, dispatch emails when the parcel goes out, and I even got a personal email from the Wizard himself

And no - I have nothing at all to do with micromite.org, just in case anyone is wondering - I am just passing on my experience. Not all websites are easy to use, you see!

Smoke makes things work. When the smoke gets out, it stops!

Zonker

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Joined: 18/08/2012
Location: United States
Posts: 767

Posted: 07:19pm 13 Sep 2014

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Good evening Gent's...

Ok, this is "Rev-B" version of the LCDuMite and Sea-O-Holes add-on board...

I fixed the pull-up resistor (r13) for the temp chip, and moved the DAC out of the battery area so you could install it on the top side without hitting it... Also fixed the stacking issue of the power jack on the SOH board hitting the contrast pot (r4) on the MPU board... Fixed the silkscreen stuff and added pin 1 dots on the IC's...

If there is enough interest, I could spin up a version with the better RTC and Fram memory IC's... Any feedback on this stuff would be awesome...!

Enjoy...

2014-09-14_045249_PIC32-44pin_LCD-Proto-DAC-Rev-B_CamFiles.z ip

2014-09-14_045342_LCD_Sea-of-Holes_Board_CamFiles.zip

2014-09-14_050247_Pic32-44pin_LCD_Board_Part_list_.pdf

2014-09-14_050323_S-O-H_Board_Parts_List.pdf

2014-09-14_051529_PIC32-44pin_LCD-Proto-DAC-Rev-B_Doc.zip

2014-09-14_051621_LCD_Sea-of-Holes_Board_Doc.zip

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