Datasheet

MT-X1 Manual

MT-X1 Hardware

Solder Jumpers

Jumper Description

J1 USB Shield to gnd (not connected by default)

~5V to relay driver (5V header pin and kickback diodes common cathode)

J3 DACA0 (pin A2) to amplifier audio input

AREF B (pin B0) to 1.25V reference

J5 AREF A (pin A0) to 1.25V reference

ADCA1 (pin A1) to temperature sensor output

J7 External clock input (pin R1) to CLKO from AT90USB162 (8 MHz)

SPI D SS (pin D4) to SRAM chip select (external pullup)

J9 SPI D MOSI (pin D5) to SRAM SI (external pullup)

J10

SPI D SCK (pin D7) to SRAM clock input (external pullup)

J11 SPI D MISO (pin D6) to SRAM SO (external pulldown)

J12

Pin D0 to LED_1

J13 Pin D1 to LED_2

J14

Pin D2 to LED_3

J15 Pin D3 to LED_4

J16

SPI F SCK (pin F7) to relay driver clock input

J17 SPI F MOSI (pin F5) to relay driver SI input

J18

USART F0 RXD (pin F2) to AT90USB162 USART TX

J19 USART F0 TXD (pin F3) to AT90USB162 USART RX (shared with PDI_DATA)

J20

USART F0 XCK (pin F1) to AT90USB162 USART XCK (also USB ready signal)

J21 SPI E MISO (pin E6) to SD card SO (must enable XMEGA pullup)

J22

SPI E SCK (pin E7) to SD card clock input (external pullup)

J23 SPI E MOSI (pin E5) to SD card SI (external pullup)

J24

SPI E SS (pin E4) to SD card chip select (external pullup)

January 29, 2015 6 http://www.mattairtech.com/