Pinouts

Main Header

Pin	Function	Notes
1	Ground
2	VDC	Max +16VDC
3	CAN1 High
4	CAN1 Low
5	CAN2 High
6	CAN2 Low
7	CAN3 High
8	CAN3 Low
9	Analog 0	Arduino A0
10	Analog 1	Arduino A1
11	Analog 4	Arduino A4
12	Analog 5	Arduino A5

Expansion Port

The Expansion port is a 1.27mm 2x9 header. It holds a standard AVR ISP pin configuration, the CC Debugger default pin configuration. It also holds one digital IO from the AVR, and one digital IO from the BLE112 to be used as chip select lines. This enables expansion over SPI for SRAM chips for example.

The expansion port also doubles as a convenient way to flash the BLE112 (via TI CC Debugger) or AVR chip (via ISP Programmer.)

Pin	IC	Function	Notes
1		GND	Ground
2	BLE112	Voltage Sense
3	BLE112	DC
4	BLE112	DD
5	BLE112	CSn	Chip Select
6	BLE112	SCLK	Clock
7	BLE112	RESET	Reset
8	BLE112	MOSI	Master Out Slave In
9	BLE112	VCC	+3.3 VDC
10	BLE112	MISO	Master In Slave Out
11		NC	No Connection
12	ATMEGA	CS
13	ATMEGA	MISO	Master In Slave Out
14	ATMEGA	VCC	+5 VDC
15	ATMEGA	SCLK	Clock
16	ATMEGA	MOSI	Master Out Slave In
17	ATMEGA	RESET	Reset MCU
18		GND	Ground