Difference between revisions of "Matrix - 0.96' 128x64 OLED/zh"
From FriendlyELEC WiKi
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==工作原理== | ==工作原理== | ||
| − | == | + | ==硬件连接== |
| − | === | + | ===连接NanoPi M1=== |
参考下图连接模块：<br> | 参考下图连接模块：<br> | ||
[[File:Matrix-0.96'_128x64_OLED_nanopi_m1.jpg|frameless|600px|Matrix-0.96'_128x64_OLED_nanopi_m1]] | [[File:Matrix-0.96'_128x64_OLED_nanopi_m1.jpg|frameless|600px|Matrix-0.96'_128x64_OLED_nanopi_m1]] | ||
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|} | |} | ||
| − | === | + | ===连接NanoPi 2=== |
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参考下图连接模块：<br> | 参考下图连接模块：<br> | ||
[[File:Matrix-0.96'_128x64_OLED_nanopi_2.jpg|frameless|600px|Matrix-0.96'_128x64_OLED_nanopi_2]] | [[File:Matrix-0.96'_128x64_OLED_nanopi_2.jpg|frameless|600px|Matrix-0.96'_128x64_OLED_nanopi_2]] | ||
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|} | |} | ||
| − | + | ==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： | 启动开发板并运行Debian系统，进入系统后克隆Matrix代码仓库： | ||
<syntaxhighlight lang="bash"> | <syntaxhighlight lang="bash"> | ||
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==代码说明== | ==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-0.96_128x64_oled，内容如下: | |
<syntaxhighlight lang="c"> | <syntaxhighlight lang="c"> | ||
int main(int argc, char *argv[]) | int main(int argc, char *argv[]) | ||
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if (boardInit() < 0) { | if (boardInit() < 0) { | ||
printf("Fail to init board\n"); | printf("Fail to init board\n"); | ||
| + | return -1; | ||
} | } | ||
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if ((devFD = OLEDInit(GPIO_PIN(7), GPIO_PIN(11))) == -1) { | if ((devFD = OLEDInit(GPIO_PIN(7), GPIO_PIN(11))) == -1) { | ||
printf("Fail to init OLED\n"); | printf("Fail to init OLED\n"); | ||
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OLEDDisp8x16Str(devFD, 0, 16, "123456789"); | OLEDDisp8x16Str(devFD, 0, 16, "123456789"); | ||
OLEDDeInit(devFD); | OLEDDeInit(devFD); | ||
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return 0; | return 0; | ||
} | } | ||
Latest revision as of 02:42, 3 June 2016
1 介绍
这是一款精致小巧的单色OLED显示屏，只有0.96英寸，分辨率是128x64，可以用来显示文字或图案。因为OLED是自发光的，所以无需背光，对比度高，功耗低。此配件5V供电，PCB上的电源转换芯片输出3.3V给OLED，通讯接口是SPI或I2C，信号电平为3.3V。默认通讯方式是SPI，如果需要改为I2C，您可以通过修改PCB上的配置电阻实现。
2 特性
- 精致小巧
- 高对比度，低功耗
- SPI/I2C
- 2.54mm排针接口，接线方便，通用性强
- PCB尺寸（mm）：27x32
- 引脚说明:
| 名称 | 描述 |
| CS | 片选 |
| DC | 数据命令选择 |
| RES | 复位 |
| MOSI | SPI MOSI |
| CLK | SPI Clock |
| 5V | 电源5V |
| GND | 地 |
3 工作原理
4 硬件连接
4.1 连接NanoPi M1
参考下图连接模块：
Matrix-0.96'_128x64_OLED_nanopi_m1
连接说明：
| Matrix-0.96'_128x64_OLED | NanoPi M1 |
| CS | Pin24 |
| DC | Pin7 |
| RES | Pin11 |
| MOSI | Pin19 |
| CLK | Pin23 |
| 5V | Pin2 |
| GND | Pin6 |
4.2 连接NanoPi 2
参考下图连接模块：
Matrix-0.96'_128x64_OLED_nanopi_2
连接说明：
| Matrix-0.96'_128x64_OLED | NanoPi 2 |
| CS | Pin24 |
| DC | Pin7 |
| RES | Pin11 |
| MOSI | Pin19 |
| CLK | Pin23 |
| 5V | Pin2 |
| GND | Pin6 |
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-oled运行效果如下：
matrix-oled_result
OLED上会显示下列2行字符：
"ABCDEFGHIJKLMN"
"123456789"
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-0.96_128x64_oled，内容如下:
int main(int argc, char *argv[]) { int devFD; if (boardInit() < 0) { printf("Fail to init board\n"); return -1; } if ((devFD = OLEDInit(GPIO_PIN(7), GPIO_PIN(11))) == -1) { printf("Fail to init OLED\n"); return -1; } OLEDCleanScreen(devFD); // Char bitmap: 8x16 OLEDDisp8x16Str(devFD, 0, 0, "ABCDEFGHIJKLMN"); OLEDDisp8x16Str(devFD, 0, 16, "123456789"); OLEDDeInit(devFD); return 0; }
API说明参考维基：Matrix API reference manual
