Difference between revisions of "NanoHat OLED"
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*It has three onboard programmable user buttons, a 2.0mm pitch 4-Pin I2C connector. | *It has three onboard programmable user buttons, a 2.0mm pitch 4-Pin I2C connector. | ||
| − | == | + | ==Hardware Spec== |
| − | * | + | * Display Area:0.96" |
| − | * | + | * Resolution: 128 x 64 |
| − | * | + | * High Contrast, Low Power Consumption |
| − | * | + | * 3 x Onboard Button |
| − | * | + | * PCB Dimension(mm): 40 x 40 |
[[File:NanoHat OLED.png|frameless|400px|NanoHat OLEDPCB]] | [[File:NanoHat OLED.png|frameless|400px|NanoHat OLEDPCB]] | ||
| − | * ''' | + | * '''GPIO Pin Description''' |
::{| class="wikitable" | ::{| class="wikitable" | ||
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Revision as of 02:07, 27 April 2017
1 Introduction
- NanoHat OLED is a small and cute monochrome OLED module with low power consumption. It is 0.96". Its resolution is 128 x 64. It communicates with a master device with I2C.
- The NanoHat OLED module has the same form factor as FriendlyElec's NanoPi NEO. It can be stacked on a NanoPi NEO.
- It has three onboard programmable user buttons, a 2.0mm pitch 4-Pin I2C connector.
2 Hardware Spec
- Display Area:0.96"
- Resolution: 128 x 64
- High Contrast, Low Power Consumption
- 3 x Onboard Button
- PCB Dimension(mm): 40 x 40
- GPIO Pin Description
Pin# Name Linux gpio Pin# Name Linux gpio 1 SYS_3.3V 2 VDD_5V 3 I2C0_SDA 4 VDD_5V 5 I2C0_SCL 6 GND 7 NC 8 NC 9 GND 10 NC 11 K1 0 12 NC 13 K2 2 14 GND 15 K3 3 16 NC 17 SYS_3.3V 18 NC 19 NC 20 GND 21 NC 22 NC 23 NC 24 NC
12Pin排针未使用，引脚功能定义在此不列举，请在NanoPi NEO/Air/NEO2维基页面查阅。
3 硬件连接
目前支持的开发板有NanoPi NEO/Air。
NanoHat OLED模块和NanoPi NEO/Air尺寸和接口完全相同，可直接堆叠在NanoPi NEO/Air上使用。
参考下图连接模块：
当前支持的开发板：
NanoPi NEO
NanoPi Fire
NanoPi NEO2
4 软件安装
NanoHat OLED的演示程序包含在 NanoHatOLED 软件仓库里，在 Ubuntu core系统下，执行以下命令进行安装：
git clone https://github.com/friendlyarm/NanoHatOLED.git cd NanoHatOLED sudo -H ./install.sh
安装脚本会在线下载并安装一系列的软件包，安装时间视网络环境而定，国内用户为了获得更快的安装速度，可以在安装之前先将软件包的源设置为国内源，方法如下：
首先，编辑文件 /etc/apt/sources.list，将里面的内容清空并更改为：
deb http://mirrors.ustc.edu.cn/ubuntu-ports/ xenial main multiverse restricted universe deb http://mirrors.ustc.edu.cn/ubuntu-ports/ xenial-backports main multiverse restricted universe deb http://mirrors.ustc.edu.cn/ubuntu-ports/ xenial-proposed main multiverse restricted universe deb http://mirrors.ustc.edu.cn/ubuntu-ports/ xenial-security main multiverse restricted universe deb http://mirrors.ustc.edu.cn/ubuntu-ports/ xenial-updates main multiverse restricted universe deb-src http://mirrors.ustc.edu.cn/ubuntu-ports/ xenial main multiverse restricted universe deb-src http://mirrors.ustc.edu.cn/ubuntu-ports/ xenial-backports main multiverse restricted universe deb-src http://mirrors.ustc.edu.cn/ubuntu-ports/ xenial-proposed main multiverse restricted universe deb-src http://mirrors.ustc.edu.cn/ubuntu-ports/ xenial-security main multiverse restricted universe deb-src http://mirrors.ustc.edu.cn/ubuntu-ports/ xenial-updates main multiverse restricted universe
然后，编辑（或新建) 文件 $HOME/.pip/pip.conf，将python的pip源设置为国内源，pip.conf内容如下：
[global] trusted-host = mirrors.aliyun.com index-url = http://mirrors.aliyun.com/pypi/simple
完成后成后，执行 sudo apt-get update更新软件包，然后再次执行 ./install.sh 安装脚本安装即可。
5 演示程序的操作说明
演示程序在安装后会在开机时自动运行，并默认显示 日期与时间 画面。
NanoHat OLED配件上的三个按键功能如下：
K1 -> 显示日期时间;
K2 -> 显示开发板的运行状态，例如 IP地址, 负载, 存储状态，CPU温度等信息;
K3 -> 关机操作，并不会立即关机，而是先弹出询问画面，在询问画面的状态下，用 K1 切换 Yes和No选项，K2进行确认;
