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For DSerial1 information go to DSerial.

DSerial² Software


Go to downloads

DS Side

Microcontroller Side

DSerial² Hardware

DSerial² Components

DSerial2 Components

DSerial² uses ICs that require very few external components.

Symbol Package Description
MCU LQFP-32 Silicon Laboratories C8051F320 USB microcontroller
ACCEL E-8 Analog Devices ADXL322 dual axis accelerometer
MAX TSSOP-16 Texas Instruments MAX3221 Single-Channel RS-232 Line Driver/Receiver
LED1, LED2 0805 Status LEDs
R1 0603 2kOhm resistor (not needed)
R2 0603 1MOhm resistor (for ACCEL)
R3, R4 0603 current-limiting resistors (around 47Ohm)
C1, C2, C3, C4, C5 0603 0.1uF ceramic capacitors
C6 0603 0.1uF ceramic capacitor (decoupling cap for MCU)
C7, C8, C9 0603 0.1uF ceramic capacitors (for ACCEL)

DSerial provides the following connectors.

Symbol Number of contacts Description
USB 6 Mini USB connector
IO1 12 First IO connector
IO2 12 Second IO connector, contains UART and RS232
PROG 4 Programming connector (initial programming)
SLOT 17 DS Slot connector


DSerial2 Schematic

Additional Pictures

DSerial2 Top View
DSerial2 Nude Top View
DSerial2 Bottom View
DSerial2 Bottom Top View