MattairTech MT-DB--U1, Manual

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MT-DB-U1 Manual
Arduino Compatibility (IDE 1.6.7)
Arduino Compatibility (IDE 1.6.7)
This is a fork of the Arduino AVR core from arduino/Arduino (hardware/arduino/avr/ directory) on
GitHub. This will be used to maintain Arduino support for AVR boards including the MattairTech MT­
DB­U1, MT­DB­U2, MT­DB­U4, and the MT­DB­U6 (see https://www.mattairtech.com/ ).
This core is intended to be installed using Boards Manager (see below). To update from a previous
version, click on MattairTech AVR Boards in Boards Manager, then click Update.
What's New
●
Initial release of the 1.6.x compatible AVR core.
●
Any combination of CDC, HID, or UART can be used (or no combination), by using the Tools­
>Communication menu.
●
Note that switching between CDC and CDC+HID will require re­selecting the COM port.
●
More detailed memory usage at end of compilation (see below).
●
Merged in upstream updates.
Summary
Feature MT-DB-U6 MT-DB-U4 MT-DB-U2 MT-DB-U1
Microcontroller
AT90USB64/AT90US
B128, 8­Bit AVR ATmega32U4, 8­
Bit AVR ATmega32U2, 8­
Bit AVR AT90USB162, 8­
Bit AVR
Clock Speed 16 MHz 16 MHz 16 MHz 16 MHz
Flash Memory
128 KB
(AT90USB128) / 64
KB (AT90USB64) 32 KB 32 KB 16 KB
SRAM
8 KB (AT90USB128) /
4 KB (AT90USB64)
2.5 KB 1 KB 512 B
EEPROM
4 KB (AT90USB128) /
2 KB (AT90USB64)
1 KB 1 KB 512 B
Digital Pins 46* 26 21 21
Analog Input Pins 8 (10­bit) 11* (10­bit) No analog No analog
PWM Output Pins 7* 7 4 4
External
Interrupts
6* (8 PCINT)* 5 (8 PCINT)* 8 (13 PCINT)* 8 (13 PCINT)*
USB CDC and HID CDC and HID CDC and HID CDC and HID
UART (Serial) 1 1 1 1
SPI 1 1 1 1
I2C (TWI) 1 1 No I2C No I2C
Operating Voltage 5V/3.3V 5V/3.3V 5V/3.3V 5V/3.3V
December 30, 2015 14 http://www.mattairtech.com/