Matrix - Compact Kit B

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1 Introduction

• The Matrix Compact Kit B is a FriendlyARM developed compact board with various hardware resources, interfaces and ports. It contains user keys, LEDs, buzzer, ADC, compass, temperature sensor, IR receiver and TFT interface. It works with FriendlyARM's NanoPi 2 Fire and NanoPi M2 via its 40 pin male connector and is compatible with Raspberry Pi and Arduino boards. In addition you can connect various devices to its IO pin-header.

2 Features

Matrix - Compact Kit B contains the following components:

• 0.9 TFT LCD

• 3 x Switch

• 4 x 5mm LED

• Buzzer

• ADC

• Potentiometer

• 40pin Female Connector

• 4pin pin-header – I2C

• 4pin pin-header – UART

• 3pin double pin-header – 3.3V and GND

• 18B20 Temperature Sensor

• IR Receiver

• 10 x 3pin pin-header – 3 x AIO & 7 x DIO (two can be configured to PWM and four can be configured to SPI)

• Compass

3 Dimensional Diagram and Pin Description

• PCB Dimension（mm）：64 x 40

• 40 pin female connector's pin description

Pin#	Name	Pin#	Name
1	SYS_3.3V	2	VDD_5V
3	I2C0_SDA	4	VDD_5V
5	I2C0_SCL	6	DGND
7	GPIOD8/PPM	8	UART3_TXD/GPIOD21
9	DGND	10	UART3_RXD/GPIOD17
11	UART4_TX/GPIOB29	12	GPIOD1/PWM0
13	GPIOB30	14	DGND
15	GPIOB31	16	GPIOC14/PWM2
17	SYS_3.3V	18	GPIOB27
19	SPI0_MOSI/GPIOC31	20	DGND
21	SPI0_MISO/GPIOD0	22	UART4_RX/GPIOB28
23	SPI0_CLK/GPIOC29	24	SPI0_CS/GPIOC30
25	DGND	26	GPIOB26
27	I2C1_SDA	28	I2C1_SCL
29	GPIOC8	30	DGND
31	GPIOC7	32	GPIOC28
33	GPIOC13/PWM1	34	DGND
35	SPI2_MISO/GPIOC11	36	SPI2_CS/GPIOC10
37	AliveGPIO3	38	SPI2_MOSI/GPIOC12
39	DGND	40	SPI2_CLK/GPIOC9

• 30 pin header's pin description

Pin#	Name	Pin#	Name	Pin#	Name
1	GND	2	VDD_5V	3	A1_PCF
4	GND	5	VDD_5V	6	A2_PCF
7	GND	8	VDD_5V	9	A3_PCF
10	GND	11	VDD_5V	12	D1_Pi11
13	GND	14	VDD_5V	15	D2_Pi33
16	GND	17	VDD_5V	18	D3_Pi16
19	GND	20	VDD_5V	21	D4_Pi19
22	GND	23	VDD_5V	24	D5_Pi21
25	GND	26	VDD_5V	27	D6_Pi23
28	GND	29	VDD_5V	30	D7_Pi24

18B20 and IR Receiver's Layout

• DS18B20 and IR receiver's pin description

Module	Pin#	Name	Pin#	Name	Pin#	Name
18B20	1	VDD_5V	2	DATA	3	GND
IR Receiver	1	DATA	2	GND	3	VDD_5V

4 硬件连接

4.1 连接NanoPi M1

参考下图连接模块：

4.2 连接NanoPi M2 / NanoPi 2 Fire

NanoPi M2和NanoPi 2 Fire的40 Pin引脚定义是一模一样的，所以它们操作Matrix配件的步骤是一样的，这里仅以NanoPi M2为例。
参考下图连接模块：

5 编译运行测试程序

启动开发板并运行Debian系统，进入系统后克隆Matrix代码仓库：

$ apt-get update && apt-get install git
$ git clone https://github.com/friendlyarm/matrix.git

克隆完成后会得到一个名为matrix的目录。

编译并安装Matrix：

$ cd matrix
$ make && make install

运行测试程序：

$ matrix-compact_kit

注意：此模块并不支持热插拔，启动系统前需要确保硬件连接正确。
运行效果如下：

LED blinking 1
LED blinking 2
Button:  1 1 1
The channel0 value is 2070
The angle is 336.3
Pwm start
Pwm stop

运行Qt程序，测试TFT屏：

cd matrix/demo/nanopi-status
./build.sh
./run.sh /dev/fb-st7735s

程序会显示出系统的基本信息，效果如下：

6 代码说明

所有的开发板都共用一套Matrix代码，本模块的测试示例代码为matrix-compact_kit，内容如下:

int main(int argc, char ** argv)
{
    int board;
 
    if ((board = boardInit()) < 0) {
        printf("Fail to init board\n");
        return -1;
    }
    testLED(board);
    readButton();
    readADC();
    readCompass();
    testPWM(board);
    // readTemp();
    // testIR();
 
    return 0;
}

API说明参考维基：Matrix API reference manual

7 Resources

• [Schematic](Matrix - Compact Kit B-Schematic.pdf)
• [0.9'LCD datasheet](Matrix - Compact Kit B-0.9'LCD datasheet.pdf)

8 Update Log

8.1 May-23-2016

• Released English version