Controller

MCU

• Texas Instruments (former Luminary Micro) LM3S5632
• 32-bit 50Mhz ARM Cortex-M3
• 128 KB flash, 32 KB SRAM
• CAN 2.0 controller
• USB 2.0 host/device controller

Ports

• 4 x ADC input (0-3 V measuring range)
• 4 x PWM output (drives up to 600 mA load)
• 2 x CAN connector on 1 bus (10 pin header)
• 1 x SPI
• 1 x I2C
• 1 x UART
• 1 x JTAG (20 pin header)
• 1 x USB device / host (Micro-AB)

Every pin has IO functionality (except PWM) ADC and PWM have 3 pin headers with ground and +5 V

On-board features

• 1 x 350 mW RGB LED
• 1 x Push-button
• ZigBee expansion board (optional)

Electrical

• Supply voltage 5 ± 0,25 V
• Powered from CAN bus, DC jack or USB device port
• Can draw up to 2 A from CAN bus or DC jack and up to 500 mA from USB port after enumeration. This includes on-board electronics.
• Reverse voltage and overcurrent (2 A) protection.

Physical

• Dimensions 61 x 50,6 x 13,2 mm
• Weight ~18 g
• Optional housing (increases height)

ARM-CAN connectors

The following chapters describe each of the connectors on ARM-CAN controller module. To recognize the connectors the controller has to be held like shown on the picture.

PWM1 connector

PWM2 connector

PWM1/2 connector has standard RC-servo compatible pinout. In both connectors there are two vertically placed RC-servo pinouts (signal, supply, ground) therefore up to 4 RC-servos can be driven. Controller board supplies up to 2 A total from supply pins. PWM1/2 connector can also be used to drive DC motor which should be connected between leftmost PWM signal pins. Those signals are driven by 600 mA MOSFET half-bridges and can form a full h-bridge.

• Schematics