IchigoJam Choco Vendor with a card reader

Just verify the card insertion.
Enables one pc of  choco vending out by hitting the red button.

IchigoJam Choco Vendor 2 チロルチョコベンダー続

IchigoJam Choco Vendor + Card Reader

 

Gave up to make a coin accepter then used a card reader instead.

 

Just sense the card insertion and it enables the button switch.

 

コインアクセプタをつくるのは、たいへんなので、カード挿入式にした。

といっても、挿入確認だけ。

 

カードを入れると、一回だけチロルチョコボタンが押せる。

 

・タミヤのギヤー　は、最低速にしたので、トルクが強い。チロルが詰まると固まる。

モーターはOFFにしても惰性で動く。

 

 

IchigoJam Choco Vendor チロルチョコベンダー

Made this

Proto 0.1
Tested:  Circular motion to liner sliding  motion to push the choco out.
              SW the Tamiya Motor by a tr with OUTPUT of IchigoJam.
              Controlled by the IchigoJam(LPC1114)  and BASIC programming


タミヤのギヤーボックスを使用。モーターをトランジスタで制御。

BASIC programming

Wait the start  tact switch ON
Start motor
Timer(TICK) reset for "timeout"
Wait the limit switch ON
Stop the motor after WAIT for the  point
Monitor the HALT swith to avoid the overload bcause of  jamming choco

Next project

Coin acceptor

 

 

IoT and Vacuum Technology

IoT + : Something

Think about something unique with IoT

Need something unique to create new idea/innovation.
IT can't be useful without things.

Not many hacker people image the vacuum technology as a seed of new idea

Talking about 10^-6 pa enclosure from 0.5"sq up to 5"x7" glass box

Sensing devices

Trial stage 1

Advantages? Benefits?

No air influence: Ultra high sensivity G sensor,

A micro mirror driven by electric field: the response of movement could be improved significantly.

The reliability also be improved due to less interference of  gas inside ,

Traffic Signal Programming Kit for Kids

 

Traffic Signal Light Programming Kit for Kids

Kid's computer "Ichigojam" BASIC Programming 

Purpose

Open the first step for age 9-12 kids to learn programming.

Encourage kids to learn fundamental programming knowledge with lighting LEDs as a traffic light.

Use fundamental commands to control LEDs.

 

 

9yr old kids understood the following commands and program flow;

OUT

WAIT

GOTO

--------------------

Wiring

IchigoJam board and LEDs

OUT1   LED (Green) via a resister to set the current.

OUT2  LED (Yellow) via a resister to set the current.

OUT3  LED (Red) via resister to set the current.

Each resister should be adjusted to set the LED current.

Normally 5 to 10mAea.

Programming Commands

Some hints

Stage 1:

Kids understand how OUT commands work

 

10 OUT1,1           'Light Green ON

20 WAIT 600       'wait approx 10sec.

30 OUT1,0           'Light Green OFF

Stage 2 :

Kids understand how INPUT command works

Change the signal light duration / timing

Input the each LED time from keyboard

 

10 INPUT"GREEN",G

20 INPUT"YELLOW",Y

30 INPUT"RED",R

 

WAIT G*60 

Stage 3

Kids can use to simpify the program flow

FOR NEXT

IF THEN ELSE

 

 

 Reference

 

Additional;Display Monitor

CU20027-Y1A Spec data (PDF)

UART interface, Just wire  TX to SI

Send ASCII character code to indicate.

 

Display Module/CU20027-Y1A  shows the light duration

 

 

Traffic Signal Light fixture by 3D printer

 

Interesting VFD Hacking Video EEVblog #717

Found an interesting Youtube Video.

It looks 1980's old type VFD  moduled by Bubcock/US.

And it 's driven by Arduino 30years after its production date!

He explains how it works.

EEVblog #717 - How To Hack Vacuum Fluorescent Displays

Easy use :VFD Module 2 x 20 Character Display UART Interface

 

Got a VFD Module

CU20027-Y1A    Easy way to use by UART

  

1. Use a VFD

The best possible readability needed  for the application.

The reliability is another important factor considering factory use.

I used an ASCII VFD Module. It has 5x8 dot font and 2x20 character position.

       Simple interface and command to control preferred

 

2. Easy  to display text messages

I wanted the minium design time for hard and soft works  I used minimum commands.

 

This module has so many functions but I need only a simple text indication.

I used only simple ASCII commands.

I tried not to use  the code library and other support softwares.

 

1) Power supply

I used a 5V 0.5A power supply . 200-300mA current flow observed in operation.

Wiring : Two wires, 5V to VCC, 0V to GND(common)

 

2) Data

UART (Asynhronous Serial)  38.4Kbps (Default) or 19.2Kbps (Jumper 0 short)

I ignored "BUSY" signal to reduce the wires.

Wiring : Only two wires, SIN and GND(common) are used to nterface to the host.

 



3. How it looks

It's so bright. A plastic color filter is recommended to get a better contrast.

Green,Blue,Gray colors can be used. The photos are my favorite colors.

 

CU20027-Y1A VFD Module with a" Rose" acrylic panel

 

UCU20027-Y1A VFD Module  with a "Neutral" acrylic panel

 4. Programming

1) ASCII control code

Just send a Home Position "0Bh" at the initial setting.

It clears the screen and sets the cursor position in the left top.

I don't use the cursor indication so I sent "14h".

 

2) Character code and font

Straightforwardly,send ASCII text code to indicate the text you want.

 

3) Other commands

There are so many useful functions but maybe I use some unique commands;

"Font magnification" :1F 28 67 40 xy

Enlarge the font 2x or 4x .

 

"Individual Character Brightness Level Setting" : 1F 28 67 50 d1 d2 d3

Brightness of each chaaracter can be set by 8 levels.

 

References;

See the maker's support web for the details.

Display Module CU-Y series

https://youtu.be/PEz_awzx7LI

 

 

 



Arduino Display w/GT20L16J1Y Japanese font ROM

GT20L16J1Y Japanese font ROM --- VFD

Copyright:vfd-fun     http://vfd-fun.blogspot.jp/

About
This trial is to display Japanese/Chinese characters on the VFD module with using Arduino and external font chip.

The interface of this font chip  GT20L16J1Y is using SPI.

Font ROM Info
Schematic
Character scroll display /Sample Program for Arduino
Refer - Font chip at
http://trac.switch-science.com/wiki/KanjiROM

VFD Module Program: 16x16 dot font scroll display on VFD Module
for Arduino and GU280X16G-7xxx
kanjiROM_test_gu280x16.txt

Wiring: Arduino, Font Chip ,Display Module(GU280X16G)

Arduino+Jpn Font + GU-7000 VFD

 

 

Font bitmap conversion

Font ROM to Display Bitmap Conv.

Retro VFD Clock with Lacquerware Stand

Single digit VFD Tubes 1970s' controlled by ATMEGA MCU.

This lacquerware(Japanese Urushi) Stand is 1920-1930 made.

Noritake VFD(Ise Electronics Corp. )"Itron" , This model, only a couple hundreds of tubes remain.

Next step would be fixing the design of PCB and lacquerware stand,making this retro 4digit clocks.
Unfortunately, this will be the very last 200 units batch available globally.

Glass TouchKeypad and IchigoJam part2

A Glass Touch Keypad and IchigoJam Trial 2

IchigoJam と　ガラス　タッチキーパッド　I2C接続

 



Key pads are formed with Aluminum fine pattern
Lower resistance than ITO

Continuous work after Dec10 2015 post

 

This time, the glass touch keypad worked.

Touch controller : Atmel AT42QT2120

 

Set up - put a printed sheet underneath the glass keypad.

 

 

 

 

 

 

 

 

 

 

1. Wiring(5)

I2C connection to the IchigoJam

 SDA--->IN3

 SCL---->EX1

 

 /Change---IN1        (Watch status change) normally "H"

I2C Address  0x1C   (Fixed)
 

VCC--3.3V

GND--GND

2. Initialize of AT42QT2120(Atmel sensor driver chip)

Reset  "/Change "   L to H      (Normally H but L at turn-on)

First thing to do;
Reset the chip!   This was a bit tricky.

 

Send reset command   0x07,0xFF(any nonzero value)

wait 500msec. (250msec Min?)

Dummy status read from the chip (I did this but not shown in the spec)

3. Read Keydata

Check  any key detection status change "/Change"

  Wait /Change  H->L

or

  Read sensor detection status (0x02)

 

Read data command   0x03

   data  D7,D6,----D0

Read data command  0x04

   data  x,x,x,x,D11,D10,D9,D8

 

Note;

I saw no key data even when "/Change" became L.

I just ignored null data.
 

4. Convert data to Key number

The order of  leadout from the glass keypad is not

the same as sensor chip input/output numbering.

I had to convert the sensor data by the following

order.

 

Glass keypad 1,2, 3, 4, 5,6, 7,8,9,10,11,12

sensor data    1,0,11,10,2,4,7,9,3, 5, 6, 8

Multi-touch can be read.
 

 5. Other settings

This Atmel chip can be set in various sensing mode.

For the pratical use it might be needed.

6. Trial kit

This kit is not  being sold, but free samples are available both in the US and Japan(Tech Support)
I'll provide some samples for the educational /leaarning purposes.



7. Atmel AT42QT2120



AT42QT2120 PCB for Glass touch keypad

Comm Mode : 1 to 12 keys, 1-9 wheel or slider

Standalone Mode:1 to 5 keys

 



Reference of pin numbers and Key number

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