MIDUINO
The MIDUINO is a combination of MIDI (Musical Instrument
Digital Interface) and the Arduino, which is based around the
ATmega168 microcontroller. The Miduino is a breadboardable Arduino
clone, and it comes with an ATMega168
pre-loaded with bootloader.
The board is designed with a built in Opto-coupler and 4-way DIP
switch which allows MIDI IN and easy setting of MIDI channels
(1-16) if required. MIDI out is also available.
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MIDUINO ITEM#: MIDUINO
PRICE: €35.00
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Circuit Schematic:
A circuit schematic of the Miduino
shows the Input/Output connections. The Miduino is designed to
connect to external breadboards or matrix boards on a 0.1"
grid.
This clone acts just like an Arduino, it is programmed
with the Arduino bootloader, so it can talk to the Arduino
software and run sketches just like the original.
Assembly:
The kit
includes all parts necessary, the assembly is straightforward and
well documented. This design does not include a USB chip, it is
designed to use a FTDI
USB 232-TTL cable to program the microcontroller. However since the cable plugs
directly into
the Miduino, you can use one cable for multiple Miduinos.
MIDI Wiring:
The MIDI IN and OUT connections use 5-Pin 180 degree DIN
sockets. Note that the MIDI IN/OUT wiring
is polarised and the correct pins should be used.
Programming:
Note, because the MIDI IN Opto-coupler shares the same serial
input as the USB interface, when programming the Miduino the
MIDI IN connection has to be disconnected.
Miduino Specifications:
- Designed , to plug into a breadboard, connect to external
0.1" matrix boards or connect via female
connectors for easy prototyping
- Size, only 4" x 1.5" (100mm x 40mm)
- Pins brought out are, Digital 0 thru 13, Analog 0 thru 5,
ARef, 5V, Ground
- Chip comes preprogrammed with a "no-wait"
Arduino bootloader
- 2 red LEDs, power and "pin 13" just like the
Arduino Diecimila
- Available as a low cost kit with standard parts,
- All through-hole parts are easy to solder
- ATmega168, utilizing a 16.00 MHz crystal, like the Arduino
Diecimila
- Standard 2.1mm DC jack (just like the original) with 5V
regulator to run on 7V-17V power
- 1N4001 diode protects against using incorrect wall adapter
- 2-pin header for MIDI IN
- 2-pin header for MIDI OUT
- 6-pin header at the end for a USB-TTL cable
- Auto-reset capability when used with a USB-TTL cable
There are some differences between the Miduino and the
Arduino. Shields cannot be used as the form factor is different
There are also no rx/tx LEDs and no rx/tx 1K
series resistors.