LuatOS/demo/u8g2/Air101_Air103/main.lua

--- 模块功能：u8g2demo
-- @module u8g2
-- @author Dozingfiretruck
-- @release 2021.01.25

-- LuaTools需要PROJECT和VERSION这两个信息
PROJECT = "u8g2demo"
VERSION = "1.0.1"

log.info("main", PROJECT, VERSION)

-- sys库是标配
_G.sys = require("sys")

--[[
I2C0
I2C0_SCL               (PA1)
I2C0_SDA               (PA4)
]]

--添加硬狗防止程序卡死
wdt.init(9000)--初始化watchdog设置为9s
sys.timerLoopStart(wdt.feed, 3000)--3s喂一次狗

-- 日志TAG, 非必须
local TAG = "main"

-- 初始化显示屏
log.info(TAG, "init ssd1306")

-- 初始化硬件i2c的ssd1306
u8g2.begin({ic = "ssd1306",direction = 0,mode="i2c_hw",i2c_id=0,i2c_speed = i2c.FAST}) -- direction 可选0 90 180 270
-- 初始化软件i2c的ssd1306
-- u8g2.begin({ic = "ssd1306",direction = 0,mode="i2c_sw", i2c_scl=1, i2c_sda=4}) -- 通过PA1 SCL / PA4 SDA模拟

u8g2.SetFontMode(1)
u8g2.ClearBuffer()
u8g2.SetFont(u8g2.font_opposansm8)
u8g2.DrawUTF8("U8g2+LuatOS", 32, 22)

if u8g2.font_opposansm12_chinese then
    u8g2.SetFont(u8g2.font_opposansm12_chinese)
else
    u8g2.SetFont(u8g2.font_opposansm10_chinese)
end
u8g2.SetFont(u8g2.font_opposansm12_chinese)
u8g2.DrawUTF8("中文测试", 40, 38) -- 若中文不显示或乱码,代表所刷固件不带这个字号的字体数据, 可自行云编译一份. wiki.luatos.com 有文档.
u8g2.SendBuffer()

--主流程
sys.taskInit(function()
    sys.wait(1000)
    u8g2.ClearBuffer()
    u8g2.DrawUTF8("屏幕宽度", 0, 24)
    u8g2.DrawUTF8("屏幕高度", 0, 42)
    u8g2.DrawUTF8(":"..u8g2.GetDisplayWidth(), 80, 24)
    u8g2.DrawUTF8(":"..u8g2.GetDisplayHeight(), 80, 42)
    u8g2.SendBuffer()

    sys.wait(1000)
    u8g2.ClearBuffer()
    u8g2.DrawUTF8("画线测试：", 30, 24)
    for i = 0, 128, 8 do
        u8g2.DrawLine(0,40,i,40)
        u8g2.DrawLine(0,60,i,60)
        u8g2.SendBuffer()
        sys.wait(100)
    end

    sys.wait(1000)
    u8g2.ClearBuffer()
    u8g2.DrawUTF8("画圆测试：", 30, 24)
    u8g2.DrawCircle(30,50,10,15)
    u8g2.DrawDisc(90,50,10,15)
    u8g2.SendBuffer()

    sys.wait(1000)
    u8g2.ClearBuffer()
    u8g2.DrawUTF8("椭圆测试：", 30, 24)
    u8g2.DrawEllipse(30,50,6,10,15)
    u8g2.DrawFilledEllipse(90,50,6,10,15)
    u8g2.SendBuffer()

    sys.wait(1000)
    u8g2.ClearBuffer()
    u8g2.DrawUTF8("方框测试：", 30, 24)
    u8g2.DrawBox(30,40,30,24)
    u8g2.DrawFrame(90,40,30,24)
    u8g2.SendBuffer()

    sys.wait(1000)
    u8g2.ClearBuffer()
    u8g2.DrawUTF8("圆角方框：", 30, 24)
    u8g2.DrawRBox(30,40,30,24,8)
    u8g2.DrawRFrame(90,40,30,24,8)
    u8g2.SendBuffer()

    sys.wait(1000)
    u8g2.ClearBuffer()
    u8g2.DrawUTF8("三角测试：", 30, 24)
    u8g2.DrawTriangle(30,60, 60,30, 90,60)
    u8g2.SendBuffer()


    -- qrcode测试
    sys.wait(1000)
    u8g2.ClearBuffer()
    u8g2.DrawDrcode(4, 4, "https://wiki.luatos.com/chips/air101/mcu.html", 10);

    u8g2.SendBuffer()

    --sys.wait(1000)
    log.info("main", "u8g2 demo done")
end)

-- 主循环, 必须加
sys.run()