--- 模块功能:u8g2demo -- @module u8g2 -- @author Dozingfiretruck -- @release 2021.01.25 --[[ 注意:如需使用u8g2的全中文字库需将 luat_base.h中26行#define USE_U8G2_WQY12_T_GB2312 打开]] -- 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(15000)--初始化watchdog设置为15s sys.timerLoopStart(wdt.feed, 10000)--10s喂一次狗 -- 日志TAG, 非必须 local TAG = "main" -- 初始化显示屏 log.info(TAG, "init ssd1306") -- u8g2.begin({ic ="ssd1306",mode="i2c_sw", pin0=1, pin1=4}) -- 通过PA1 SLK/PA4 SDA模拟, 也可以用硬件i2c脚 u8g2.begin({ic ="ssd1306", mode="i2c_hw", i2c_id=0, i2c_speed = i2c.FAST}) -- 硬件i2c --u8g2.begin({ic ="st7567",mode="spi_hw_4pin",spi_id=1,spi_res=19,spi_dc=17,cs=20}) --u8g2.begin("ssd1306") u8g2.SetFontMode(1) u8g2.ClearBuffer() u8g2.SetFont(u8g2.font_opposansm8) u8g2.DrawUTF8("U8g2+LuatOS", 32, 22) u8g2.SetFont(u8g2.font_opposansm12_chinese) u8g2.DrawUTF8("中文测试", 40, 38) u8g2.SendBuffer() -- 联网主流程 sys.taskInit(function() sys.wait(2000) u8g2.ClearBuffer() u8g2.SetFont(u8g2.font_opposansm12_chinese) u8g2.DrawUTF8("屏幕宽度", 20, 24) u8g2.DrawUTF8("屏幕高度", 20, 42) u8g2.SetFont(u8g2.font_opposansm8) u8g2.DrawUTF8(":"..u8g2.GetDisplayWidth(), 72, 24) u8g2.DrawUTF8(":"..u8g2.GetDisplayHeight(), 72, 42) u8g2.SendBuffer() sys.wait(2000) u8g2.ClearBuffer() u8g2.SetFont(u8g2.font_opposansm12_chinese) 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() end sys.wait(1000) u8g2.ClearBuffer() u8g2.SetFont(u8g2.font_opposansm12_chinese) 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.SetFont(u8g2.font_opposansm12_chinese) 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.SetFont(u8g2.font_opposansm12_chinese) 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.SetFont(u8g2.font_opposansm12_chinese) 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.SetFont(u8g2.font_opposansm12_chinese) u8g2.DrawUTF8("符号测试:", 30, 24) u8g2.DrawUTF8("显示雪人", 30, 38) u8g2.SetFont(u8g2.font_unifont_t_symbols) u8g2.DrawGlyph( 50, 60, 0x2603 ) u8g2.SendBuffer() sys.wait(1000) u8g2.ClearBuffer() u8g2.SetFont(u8g2.font_opposansm12_chinese) u8g2.DrawUTF8("三角测试:", 30, 24) u8g2.DrawTriangle(30,60, 60,30, 90,60) u8g2.SendBuffer() sys.wait(3000) u8g2.close() while true do sys.wait(1000) end end) -- 主循环, 必须加 sys.run()