I2C Test: TouchKey Display and IchigoJam

I2C Test :TouchKey Display Module and IchigoJam

IchigoJam とGU-D ModuleをI2Cで接続してみた

GU140X32F-D903S

140x32 dot matrix VFD with 8x2  Capacitive touch keypad 

1. IchigoJam a BASIC computor for kids

What is  the "IchigoJam";

LPC1114 based MCU board includes, Basic interpreter on chip, NTSC video output, PS2 Keyboard input,Digital/Analog I/O, UART,I2C..

 

Note:IchigoJam Basic uses "# "showing hex data "h"

2. I2C Connection to the IchigoJam

SDA: IN3

SCL:  EXT

 

Connection: GU-D Module

SDA:  PIN2

SCL:   PIN5

I2C Addr   50h (can be selected)

3. IchigoJam BASIC command

1) Write message data thru I2C

POKE #700,........         Store Module command

POKE #703,.........        Store message data ASCII

An example for IchigoJam BASIC command for I2C write

I2CW(#50,#700,3,#703,7)

Send the data 3bytes from Addr 700h as a command and send 7bytes from 703h as message data.

 

2) Read Key data

POKE #710,#1f,#48,#10........   Store Module command to read data
 

I2CR(#50,#710,3,#720,4)    :  
Send the command (#10) for "All Touch SW Status Read" , 3bytes from 710h.
Save read 4bytes data to 720h---723h.
 

3) Result

Read data form the module  in #720,#721,#722,#723

 

#720 : Function Id (#10)       (Just confirm the sent command data)

#721 : Data Length (2)         (Tell how many bytes sent)

#722 : Keydata  (SW16-9)

#723:  Keydata  (SW8-1)

 

4. Display functions of Module :GU140X32F-D903S

1) How to indicate your  message on the module screen :Refer the spec for detail

Just send ASCII data or Bitmap to  the module ,no need to use libraries to display simple text and bitmap.

 

Display control commands

Bitmap memory

international character fonts incl Asian fonts

Macro programming

 

Connection

GU140X32F-D903F

 

Result: Data read from Module

 

IchigoJam Monitor with GU140X32F-D903S



-Reference-

Display GU140X32F-D903S information