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donmck

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Joined: 09/06/2011
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Posts: 1313

Posted: 08:53am 22 Jul 2011

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Do we have lift off?
We are on the pad, and waiting for the main engine to ignite!

OK, this is a mock up of a Maximite EV board with a DonDuino Cross mounted on top, and an Ebay $16 LCD (including postage) Arduino shield sitting on top.

Mick is just writing the software to make it tick as we speak.

and some more:

And a pair:

I'll let you know when we get them going.

Cheers Don...

https://www.dontronics.com

donmck

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Posts: 1313

Posted: 11:17am 22 Jul 2011

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As Mick said, "Who's a pretty boy"?

Here is is shown sitting on top of a case with the cable entry from the rear of the DonDuino Cross.

And the code.

[code]
10 GOSUB 11000 ' Initialise the LCD
20 LCD_line1$ = " *Dontronics* "
30 LCD_line2$ = " DonDuino Cross "
40 GOSUB 12000 ' send to the LCD
50 END
60 '
70 '
80 '
10000 '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' ''''
10010 ' LCD driver for standard 16 x 2 LCDs
10020 ' Originally by Geoff Graham, March 2011, for Arduino by Mick Gulovsen July 2011
10030 '
10040 ' For example: futurlec.com LCD16X2
10050 ' altronics.com.au Z7001
10060 ' jaycar.com.au QP5512
10070 '
10080 ' To use:
10090 ' - execute GOSUB 11000 to initialise display
10100 ' - then load the text strings into the
10110 ' variablesLCD_line1$ and LCD_line2$
10120 ' - execute GOSUB 12000 to display the text
10130 '
10140 ' See the file lcd.pdf for the schematic.
10150 ' Maximite pin 19 is RS, pin 20 is EN
10160 ' pins 15 to 18 are D4 to D7. R/W is grounded
10180 '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' ''''
10190 '
10200 '
11000 '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' ''''
11010 ' Initialise the LCD
11020 '
11030 FOR i=15 TO 20: SETPIN i,8 : NEXT i
11040 _LCD_byte = &B0011 : GOSUB 13090 : PAUSE 5 ' reset
11050 _LCD_byte = &B0011 : GOSUB 13090 : PAUSE 5 ' reset
11060 _LCD_byte = &B0011 : GOSUB 13090 : PAUSE 5 ' reset
11070 _LCD_byte = &B0010 : GOSUB 13090 : PAUSE 2 ' 4 bit mode
11080 _LCD_byte = &B00101100 : GOSUB 13000 ' 4 bit, 2 lines
11090 _LCD_byte = &B00001100 : GOSUB 13000 ' display on, no cursor
11100 _LCD_byte = &B00000110 : GOSUB 13000 ' increment on write
11110 _LCD_byte = &B00000001 : GOSUB 13000 ' clear display
11120 RETURN
11130 '
11140 '
12000 ' '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' ''''
12010 ' send the two lines to the LCD
12020 ' the text is in LCD_Line1$ and LCD_Line2$
12030 '
12040 _LCD_byte = &H80 : GOSUB 13000 ' select the 1st line
12050 FOR _LCD = 1 TO 16
12060 _LCD_byte = ASC(MID$(LCD_Line1$, _LCD, 1))
12070 PIN(19) = 1 : GOSUB 13000 ' send the character
12080 NEXT _LCD
12090 _LCD_byte = &B11000000 : GOSUB 13000 ' select the 2nd line
12100 FOR _LCD = 1 TO 16
12110 _LCD_byte = ASC(MID$(LCD_Line2$, _LCD, 1))
12120 PIN(19) = 1 : GOSUB 13000 ' send the character
12130 NEXT _LCD
12140 RETURN
12150 '
12160 '
13000 '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' ''''
13010 ' Send a byte to the LCD
13020 ' the data to be sent is in _LCD_byte
13030 '
13040 PIN(15) = _LCD_byte AND &B00010000 ' output the 1st 4 bits
13050 PIN(16) = _LCD_byte AND &B00100000
13060 PIN(17) = _LCD_byte AND &B01000000
13070 PIN(18) = _LCD_byte AND &B10000000
13080 PIN(20) = 1 : pause 1:PIN(20) = 0 : pause 1 ' tell lcd to accept data
13090 ' Entry point to send just 4 bits to the LCD
13100 PIN(15) = _LCD_byte AND &B00000001 ' output the 2nd 4 bits
13110 PIN(16) = _LCD_byte AND &B00000010
13120 PIN(17) = _LCD_byte AND &B00000100
13130 PIN(18) = _LCD_byte AND &B00001000
13140 PIN(20) = 1 : pause 1: PIN(20) = 0 : pause 1: PIN(19) = 0 : pause 5 ' tell lcd to accept data
13150 RETURN
[/code]

We have a Maximite, running via a DonDuino Cross, to an eBay Arduino shield.

Mick is now working on the switches. He has most of them figured out.

Cheers Don...Edited by donmck 2011-07-24

https://www.dontronics.com

donmck

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Joined: 09/06/2011
Location: Australia
Posts: 1313

Posted: 03:41pm 22 Jul 2011

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Mick just found the schematic of the LCD:

http://www.nuelectronics.com/estore/index.php?main_page=proj ect_lcd

Cheers Don...

https://www.dontronics.com

VK6MRG

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Joined: 08/06/2011
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Posted: 03:55pm 22 Jul 2011

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WOW, looks good.

Its easier to ask forgiveness than to seek permission!

............VK6MRG.............VK3MGR............

sparkey

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Joined: 15/06/2011
Location: Australia
Posts: 819

Posted: 07:31pm 22 Jul 2011

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hey don micro sd cards fom office works 12 bucks oh think they said 2gig regards sparkey they have largerEdited by sparkey 2011-07-24

technicians do it with least resistance

sparkey

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Joined: 15/06/2011
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Posts: 819

Posted: 08:54pm 22 Jul 2011

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a`hh litle confused on what this is ///i gather "in old term`s"it is an expansion buss....or am i totally wrong...or is this what we might call the daisy chain .....

technicians do it with least resistance

donmck

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Posts: 1313

Posted: 09:49pm 22 Jul 2011

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sparkey said a`hh litle confused on what this is ///i gather "in old term`s"it is an expansion buss....or am i totally wrong...or is this what we might call the daisy chain .....

Hi Sparkey, I think we have been talking in depth about Arduino shields for about 3 to 4 weeks on this forum.

Have a read of this:
http://www.themaximitecomputer.com/the-donduino-cross/

and this:
http://www.dontronics-shop.com/the-donduino-cross.html

and the links from here:
http://www.arduino.cc/en/Main/ArduinoShields

and here:
http://shieldlist.org/

that will give you a little idea of the potential of the shield system, and how it can complement the Maximite.

Cheers Don...Edited by donmck 2011-07-24

https://www.dontronics.com

VK6MRG

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Posts: 347

Posted: 09:59am 23 Jul 2011

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Don, do you have an enclosure that would suit the Maximite EV with an expansion board on top?

Its easier to ask forgiveness than to seek permission!

............VK6MRG.............VK3MGR............

donmck

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Joined: 09/06/2011
Location: Australia
Posts: 1313

Posted: 03:34pm 23 Jul 2011

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VK6MRG said Don, do you have an enclosure that would suit the Maximite EV with an expansion board on top?

Sorry Matthew, I don't.

This is much like any Arduino shield now. Most of them are home grown stacks and you would need to sort out a jiffy box to house it.

Cheers Don...

https://www.dontronics.com

jman

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Joined: 12/06/2011
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Posts: 711

Posted: 07:20am 28 Jul 2011

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Hi Don

Recieved the DonDuino boards today as expected they look great
Will put one together and post results
I have a shield comming so I can test

John

donmck

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Location: Australia
Posts: 1313

Posted: 07:26am 28 Jul 2011

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jman said Hi Don

Recieved the DonDuino boards today as expected they look great
Will put one together and post results
I have a shield comming so I can test

John

Great, thanks for the feed back John,

I figure this should make the add on Arduino shields dead easy for the Maximite.

Cheers Don...

https://www.dontronics.com

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