树莓派OLED模块
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Contents
概述
市面上很少能找到为树莓派量身定制的OLED屏幕,/在很多应用项目中,我们仅需要显示非常简单的一些信息,比如系统状态、IP等信息,/或者对便携性有较高需求,这时候用HDMI去接一个大屏幕明显不合适,一个小巧的OLED屏幕刚好能满足这种需求。
OLED Add-on是为树莓派量身定制的,板载一块0.96" 128*64 OLED屏幕,控制芯片为SSD1306,每一个像素点都可以通过SSD1306独立控制点亮或者关闭。
我们不仅仅只是提供一块可以方便的插在树莓派上面的板子,还为其配套提供了SDK,移植了Arduino上的驱动程序。安装完SDK后,就可以像在Arduino平台底下一样,非常轻松的驱动这块板子。
特色
- 为树莓派量身定做,不用接线,即插即用
- 可堆叠
- 0.96英寸 128*64 像素点单色OLED屏幕
- 提供1组Grove电子积木口
规格
| PCB大小 | 48.35mm X 48.47mm X1.6mm |
| 接口 | RPI 26pins Interface X2,UART |
电气特性
| 特性 | 标示 | 最小值 | 正常值 | 最大值 | 单位 |
| 电源电压 | VDD | 3 | 3.3 | 3.5 | V |
| 最高输入电压 | VIH | 0.8XVDD | - | VDD | V |
| 最低输入电压 | VIL | 0 | - | 0.2XVDD | V |
| VDD可调电流 | IDD | - | 180 | 300 | uA |
硬件
引脚图
| Pin Index | Pin Name | OLED 2864 pin | Description |
| 1 | 3V3 | - | |
| 2 | 5V | - | |
| 3 | SDA | SDA | |
| 4 | 5V | - | |
| 5 | SCL | SCL | |
| 6 | GND | - | |
| 7 | GPIO7 | UART TXD | |
| 8 | TXD | ||
| 9 | GND | ||
| 10 | RXD | UART RXD | |
| 11 | GPIO0 | ||
| 12 | GPIO1 | ||
| 13 | GPIO2 | ||
| 14 | GND | ||
| 15 | GPIO3 | ||
| 16 | GPIO4 | RST# | |
| 17 | 3V3 | ||
| 18 | GPIO5 | ||
| 19 | MOSI | ||
| 20 | GND | ||
| 21 | MISO | ||
| 22 | GPIO6 | ||
| 23 | SCK | ||
| 24 | CE0 | ||
| 25 | GND | ||
| 26 | CE1 |
Instruction
- Plug OLED add-on into Raspberry Pi and power it
- modify the file /etc/modprobe.d/raspi-balcklist.conf
- modified codes as below
- blacklist spi-bcm2708
- blacklist i2c-bcm2708
- modify /etc/modules
- add a line in the end as below:
- i2c-dev
- reboot
- Download the SDK from this link: https://github.com/iteadsw/SDK and then install it
- Enter into the directory libraries/itead_SSD1306/examples/oled_Animation_Sample/, then compile and run this file oled_Animation_Sample.ino
- Command as below to compile oled_Animation_Sample.ino
- $ iteadcompile OLED oled_Animation_Sample.ino
- Command to run this program
- $ sudo ./OLED
- When the compilation is done, you can see a little man dancing on OLED.
Download
Useful Link
https://github.com/iteadsw/SDK https://github.com/iteadsw/SDK/tree/master/libraries/itead_SSD1306
Notice