Pmod ACL │ 三軸加速度計模組 │ I²C SPI

: 速度 │ 方向 │ 壓力 │ 時間感測

Pmod ACL 是一個三軸數位加速度計模組，可為主機板提供相應的輸入。用戶可透過 SPI 或 I2C介面與 Analog Devices ADXL345 通訊，指示 Pmod 的定向角度。

3軸，±2/4/8/16g 加速度計
可自選解析度
活動/非活動監控
單/雙擊與自由落體檢測
適用於各種設計的小型PCB尺寸（2.5cm x 2.0cm）
SPI 介面與 2x4 pin I²C 介面的 12 pin Pmod連接器

A data stream setting the threshold activity to a value of 250 mg and Interrupt 1 to be triggered whenever
the X and Y axis exceeds the threshold level through SPI is provided below:

Read/~Write	Multi-byte	6-bit Threshold Activity Address
0	0	1	0	0	1	0	0
8 bits of Threshold Activity data (62.5 mg/LSB scale)
0	0	0	0	0	1	0	0
Read/~Write	Multi-byte	6-bit Activity/Inactivity Control Address
0	0	1	0	0	1	1	1
Activity/Inactivity Control Settings
ACT ac/dc	ACT X	ACT Y	ACT Z	INACT ac/dc	INACT X	INACT Y	INACT Z
0	1	1	0	0	0	0	0
Read/~Write	Multi-byte	6-bit Interrupt Enable Address
0	0	1	0	1	1	1	0
8 bits of Which Interrupt Sources Are Enabled
Data Ready	Single Tap	Double Tap	Activity	Inactivity	Free Fall	Watermark	Overrun
0	0	0	1	0	0	0	0

Pinout Description Table

Pmod Header J1						Pmod Header J2
Pin	Signal	Description	Pin	Signal	Description	Pin	Signal	Description
1	~CS	Chip Select	7	INT2	Interrupt 2	1, 5	SCL	Serial Clock
2	MOSI	Master-Out-Slave-In	8	INT1	Interrupt 1	2, 6	SDA	Serial Data
3	MISO	Master-In-Slave-Out	9	NC	Not Connected	3, 7	GND	Power Supply Ground
4	SCK	Serial Clock	10	NC	Not Connected	4, 8	VCC	Positive Power Supply
5	GND	Power Supply Ground	11	GND	Power Supply Ground
6	VCC	Power Supply (3.3V)	12	VCC	Power Supply (3.3V)

Any external power applied to the Pmod ACL must be within 2.0V and 3.6V; it is strongly recommended that Pmod is operated at 3.3V.

	通訊協議/介面：I²C SPI
	DIGILENT Pmod Interface Specification 類型/版本：TYPE 2A / 1.2.0
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	產品編號：410-097
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Pmod ACL │ 三軸加速度計模組 │ I²C SPI