Gakken Japanino Assemble, Instruction Manual - page 3
5
Otona
no
Kagaku
6
Components in the Japanino and Their Functions
There are quite a few characters and symbols imprinted on the Japanino, but there are
not so many of which you actually need to know the meanings.
Most of the parts you should be familiar with are pins*.
The types of pins are roughly divided into three groups, digital input/output pins,
analog input pins, and power supply pins.
Normally, pins are wired in accordance with the sketch (program).
A6
Analog input pin no. 6.
Description
Symbol
Analog input pin no. 7.
Adds a RESET button
3.3 V power supply pin. Not usually
used.
Power supply pin. Supplies a 5 V
power supply.
Ground. Negative (-) on power
supply.
Ground. Negative (-) on power
supply.
Not used.
Analog input pin no. 0.Can also be used
as digital pin no. 14.
Analog input pin no. 1.Can also be
used as digital pin no. 15.
Analog input pin no. 2.Can also be
used as digital pin no. 16.
Analog input pin no. 3.Can also be
used as digital pin no. 17.
Analog input pin no. 4.Can also be
used as digital pin no. 18.
Analog input pin no. 5.Can also be
used as digital pin no. 19.
A7
RESET
3V3
+5V
GND
GND
(VIN)
A0
A1
A2
A3
A4
A5
There are a total of 8 analog input pins, including A6 and A7 in
addition to A0 to A5 (the A is short for Analog). The input voltage is
read out from 0 to the power supply voltage (5 V, normally) in 1024
steps. You can connect sensors, volume dials, etc. to these pins. In
addition, you can also use these analog input pins as digital input/
output pins by changing the settings in a sketch (program).
There are a total of 14 pins from D0 to D13 (the D stands for Digital). The input pins and output pins for
digital values of HIGH and LOW can be set freely. The 6 pins of D3, D5, D6, D9, D10, and D11 that are
marked with PWM (for Pulse Width Modulation) can be used as pulse width control output pins. Pins
D0 and D1 can be connected to a PC via USB.
5 V; microcomputer/ATmega168V; USB-serial conversion IC/CP2104; oscillating
frequency, 8 MHz
Analog input pins
Digital input/output pins
Specifications
Connector for
the battery box
USB connector
Explanations of terms
Power supply ON indicator LED
Reset button
IC chip
ICSP terminal
Pin D13 activity indicator LED
IC chip
Overcurrent protection
(Resettable) Fuse
Place for connecting the
battery box. The battery
box becomes a 5 V (to
be exact, a 4.5 V) power
supply.
Button for resetting the
exchange, etc. of data.
Sometimes used for writing, etc.
of sketches for Mac.
A terminal used for writing,
etc. to a boot loader. Not
normally used.
An Atmel microcontroller
ATmega168V is used. A power-
saving type of IC chip.
Connector for connecting to
a PC with USB
* Pin: For the Japanino, terminals are referred to in this way. Some terminals may also be called "ports" on other circuit boards. Some terminals may be in the form of sockets. The expression "I/O pin" is also
sometimes used when to represent input/output. "I" stands for "Input" and "O" for "Output."
* GND: This stands for "GROUND," the surface of the earth. Electrically speaking, ground refers to earth ground. The ground terminal is connected to the negative (-) on the power supply.
* PWM: This is the abbreviation for "Pulse Width Modulation." By controlling the ratio between ON and OFF times for a given pulse, you can realize analog output with digital pins.
CP2104 from CP Corporation
. Performs USB to serial
conversion.
+5V
Power supply pin. Supplies a 5 V power supply.
Description
Symbol
Not connected to anything.
Reference signal pin.
Ground*. Negative (-) on power supply.
Digital input/output pin no. 13 (can be used to monitor the
L LEDs on the circuit board).
Digital input/output pin no. 12.
Digital input/output pin no. 11 (can also be used to output
PWM*).
Digital input/output pin no. 10 (can also be used to output
PWM).
Digital input/output pin no. 8.
Digital input/output pin no. 7.
Digital input/output pin no. 6 (can also be used to output
PWM).
Digital input/output pin no. 5 (can also be used to output
PWM).
Digital input/output pin no. 4.
NC
AREF
GND
D13
D12
PWM D11
PWM D10
PWM D9
D8
D7
PWM D6
PWM D5
D4
Digital input/output pin no. 9 (can also be used to output
PWM).
Digital input/output pin no. 3 (can also be used to output
PWM).
Digital input/output pin no. 2.
Pin no. 1. For communications use, and therefore not
used in digital input/output.
Pin no. 0. For communications use, and therefore not
used in digital input/output.
PWM D3
D2
TX D1
RX D0
Communications activity indicator LED
How to assemble the supplement