Use of the axe033y/axe033 RTC board on an axe134y

DTN00B

New Member
I was wondering if it possible to use the serial/i2c LCD & clock module from the back of the Axe033 or Axe033y board for the axe134 20x4 OLED display because I need to use the clock chip and subsequently program it in i2c not serial.

Thanks in advance
 

nick12ab

Senior Member
Welcome to the PICAXE Forum.

The answer is yes and no. You can still address each character on the OLED however the messages you can store in the AXE033 board are limited to 16 characters and the first two lines so you can't use them properly.
 

DTN00B

New Member
Thank you for your response, Is there any way to program the 20x4 OLED screen with i2c and use the RTC chip externally as i am using a 20M2 if you are interested.
And this is the code, its not finished but i am using an RFID reader to interface into a picaxe system to create a children's time management system:

Code:
'***********************************************************************************************
' Program:			RFID Tag Reader With Picaxe 20M2
' Created Date:		2/10/2012
'***********************************************************************************************

'***{PROGRAM SETTINGS}**************************************************************************
#PICAXE 20M2
#NO_DATA
'#TERMINAL 9600
SETFREQ m16

INIT: 
PAUSE 500
HI2CSETUP I2CMASTER,$C6,I2CSLOW,I2CBYTE
GOSUB Dispreset
GOSUB Dispinitial
'***********************************************************************************************


'***{RFID VARIABLES}****************************************************************************
SYMBOL RFID=c.0
SYMBOL RFIDbaud=T9600_16
'***********************************************************************************************


'***{EEPROM DATA}*******************************************************************************
POKE 30,0,0,0,4,4,6,2,7,7,6		'TAG1
POKE 40,0,0,0,4,4,2,7,1,2,9		'TAG2
POKE 50,0,0,0,4,4,4,9,9,3,3		'TAG3
POKE 60,0,0,0,4,4,4,9,3,8,6		'TAG4
POKE 70,0,0,0,4,4,6,2,8,0,4		'TAG5
'***********************************************************************************************


'***{EEPROM VARIABLES/CONSTANTS}****************************************************************
SYMBOL LASTTAG = 7	'THERE ARE 5 TAGS IN TOTAL
SYMBOL TAG0 = B0
SYMBOL TAG1 = B1
SYMBOL TAG2 = B2
SYMBOL TAG3 = B3
SYMBOL TAG4 = B4
SYMBOL TAG5 = B5
SYMBOL TAG6 = B6
SYMBOL TAG7 = B7
SYMBOL TAG8 = B8
SYMBOL TAG9 = B9
SYMBOL TAGNUM = B10
SYMBOL PNTR = B11		'EEPROM POINTER
SYMBOL CHAR = B12 
SYMBOL REALTAGNUM=B13
SYMBOL REALTAGNUMASCII=B14
	'FIRST NUMBER IN TAG
'***********************************************************************************************


'***{MAIN PROGRAM}******************************************************************************
MAIN:
SERIN RFID,RFIDbaud,TAG0,TAG0,TAG0,TAG1,TAG2,TAG3,TAG4,TAG5,TAG5,TAG5,TAG5,TAG6,TAG7,TAG8,TAG9
TAG0=TAG0-29//10
TAG1=TAG1-29//10
TAG2=TAG2-29//10
TAG3=TAG3-29//10
TAG4=TAG4-29//10
TAG5=TAG5-29//10
TAG6=TAG6-29//10
TAG7=TAG7-29//10
TAG8=TAG8-29//10
TAG9=TAG9-29//10
'***********************************************************************************************


'***{EEPROM PROGRAM}****************************************************************************

CHECKLIST:
FOR TAGNUM = 3 TO LASTTAG
PNTR = TAGNUM * 10 + 0 : PEEK PNTR, CHAR
IF CHAR <> TAG0 THEN BADCHAR
PNTR = TAGNUM * 10 + 1 : PEEK PNTR, CHAR
IF CHAR <> TAG1 THEN BADCHAR
PNTR = TAGNUM * 10 + 2 : PEEK PNTR, CHAR
IF CHAR <> TAG2 THEN BADCHAR
PNTR = TAGNUM * 10 + 3 : PEEK PNTR, CHAR
IF CHAR <> TAG3 THEN BADCHAR
PNTR = TAGNUM * 10 + 4 : PEEK PNTR, CHAR
IF CHAR <> TAG4 THEN BADCHAR
PNTR = TAGNUM * 10 + 5 : PEEK PNTR, CHAR
IF CHAR <> TAG5 THEN BADCHAR
PNTR = TAGNUM * 10 + 6 : PEEK PNTR, CHAR
IF CHAR <> TAG6 THEN BADCHAR
PNTR = TAGNUM * 10 + 7 : PEEK PNTR, CHAR
IF CHAR <> TAG7 THEN BADCHAR
PNTR = TAGNUM * 10 + 8 : PEEK PNTR, CHAR
IF CHAR <> TAG8 THEN BADCHAR
PNTR = TAGNUM * 10 + 9 : PEEK PNTR, CHAR
IF CHAR <> TAG9 THEN BADCHAR
GOTO TAGFOUND

BADCHAR:
NEXT

BADTAG:
GOSUB Dispreset
GOSUB Dispscaned
WAIT 8
GOSUB Dispreset
GOSUB Dispbadtag
WAIT 8
GOSUB Dispreset
GOSUB Dispinitial
GOTO MAIN

TAGFOUND:
GOSUB Dispreset
GOSUB Dispscaned
WAIT 8
GOSUB Dispreset
GOSUB Dispgoodtag
WAIT 8
GOSUB Dispreset
GOSUB Dispinitial
GOTO MAIN
'***********************************************************************************************


'***{Display Subroutines}***********************************************************************

Dispreset:
HI2COUT 0,(254,1,255)
PAUSE 30
HI2COUT 0,(254,128,255)
PAUSE 30
RETURN

Dispgoodtag:
REALTAGNUM = TAGNUM-2
BINTOASCII REALTAGNUM,REALTAGNUMASCII,REALTAGNUMASCII,REALTAGNUMASCII
HI2COUT 0,("Welcome User: ",REALTAGNUMASCII,255)
PAUSE 500
RETURN

Dispbadtag:
HI2COUT 0,("Unknown Card",255)
PAUSE 500
RETURN

Dispinitial:
HI2COUT 0,("Scan Card",255)
PAUSE 500
RETURN

Dispscaned:
HI2COUT 0,("Scanning Card",255)
PAUSE 500
RETURN
'***********************************************************************************************
 

nick12ab

Senior Member
The 20x4 display works exactly the same as the 16x2 display except there's now just more characters to address.
 

DTN00B

New Member
So i can use the Serial/i2c RTC board from the back of an axe 033 on an axe 134 an have all of the characters and lines available to me?
 

nick12ab

Senior Member
So i can use the Serial/i2c RTC board from the back of an axe 033 on an axe 134 an have all of the characters and lines available to me?
You can use the serial/i2c RTC board from the AXE033 with the OLED display from the AXE134 (AXE132 driver board removed).
 
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