lua—GPRS模块开发之I2C OLED模块驱动

终于要从学校滚蛋了，前几天TB上发现一个神器，一种可以用来编程的GPRS模块，哈哈，感觉物联网时代已经到来，牛掰！多的不说啦，什么MQTT之类，socket之类的demo luat团队已经给的很完善了。我就做demo没有的，驱动个I2C OLED .当然首先得有一点单片机基础了啦！之前大学四年就搞了点单片机，感觉自己好废，不过这个对以后工作还是有用呢。个人感觉学单片机学的就是接口技术（拙见），因为以前弄过相似的产品，SO，搞定这个现实还是很轻松的，当然来，要谢谢luat团队对底层代码的维护升级！
选择这个作为我的第一个博客就是因为AIR200这个产品让我看见物联网的半边天！多的不说啦，什么是I2c协议啥啥啥的就不多说了，默认你已经懂I2C、已经熟读这个OLED的驱动芯片资料啦，我还是个小学生，代码可能有bug，还请多多指教

本着开源精神，贡献代码如下，可以显示6x8字符，可以显示图片，其他自己去研究啦，下面这个链接是代码源文件下载链接，手头宽裕就给几个积分呗，不给也行，我已经附上源代码啦

http://download.csdn.net/detail/a13698709128/9850149

module(…,package.seeall)

local F6x8 =–6x8字库

{

0x00, 0x00, 0x00, 0x00, 0x00, 0x00,– sp

0x00, 0x00, 0x00, 0x2f, 0x00, 0x00,– !

0x00, 0x00, 0x07, 0x00, 0x07, 0x00,– ”

0x00, 0x14, 0x7f, 0x14, 0x7f, 0x14,– #

0x00, 0x24, 0x2a, 0x7f, 0x2a, 0x12,– $

0x00, 0x62, 0x64, 0x08, 0x13, 0x23,– %

0x00, 0x36, 0x49, 0x55, 0x22, 0x50,– &

0x00, 0x00, 0x05, 0x03, 0x00, 0x00,– ’

0x00, 0x00, 0x1c, 0x22, 0x41, 0x00,– (

0x00, 0x00, 0x41, 0x22, 0x1c, 0x00,– )

0x00, 0x14, 0x08, 0x3E, 0x08, 0x14,– *

0x00, 0x08, 0x08, 0x3E, 0x08, 0x08,– +

0x00, 0x00, 0x00, 0xA0, 0x60, 0x00,– ,

0x00, 0x08, 0x08, 0x08, 0x08, 0x08,– -

0x00, 0x00, 0x60, 0x60, 0x00, 0x00,– .

0x00, 0x20, 0x10, 0x08, 0x04, 0x02,– /

0x00, 0x3E, 0x51, 0x49, 0x45, 0x3E,– 0

0x00, 0x00, 0x42, 0x7F, 0x40, 0x00,– 1

0x00, 0x42, 0x61, 0x51, 0x49, 0x46,– 2

0x00, 0x21, 0x41, 0x45, 0x4B, 0x31,– 3

0x00, 0x18, 0x14, 0x12, 0x7F, 0x10,– 4

0x00, 0x27, 0x45, 0x45, 0x45, 0x39,– 5

0x00, 0x3C, 0x4A, 0x49, 0x49, 0x30,– 6

0x00, 0x01, 0x71, 0x09, 0x05, 0x03,– 7

0x00, 0x36, 0x49, 0x49, 0x49, 0x36,– 8

0x00, 0x06, 0x49, 0x49, 0x29, 0x1E,– 9

0x00, 0x00, 0x36, 0x36, 0x00, 0x00,– :

0x00, 0x00, 0x56, 0x36, 0x00, 0x00,– ;

0x00, 0x08, 0x14, 0x22, 0x41, 0x00,– <

0x00, 0x14, 0x14, 0x14, 0x14, 0x14,– =

0x00, 0x00, 0x41, 0x22, 0x14, 0x08,– >

0x00, 0x02, 0x01, 0x51, 0x09, 0x06,– ?

0x00, 0x32, 0x49, 0x59, 0x51, 0x3E,– @

0x00, 0x7C, 0x12, 0x11, 0x12, 0x7C,– A

0x00, 0x7F, 0x49, 0x49, 0x49, 0x36,– B

0x00, 0x3E, 0x41, 0x41, 0x41, 0x22,– C

0x00, 0x7F, 0x41, 0x41, 0x22, 0x1C,– D

0x00, 0x7F, 0x49, 0x49, 0x49, 0x41,– E

0x00, 0x7F, 0x09, 0x09, 0x09, 0x01,– F

0x00, 0x3E, 0x41, 0x49, 0x49, 0x7A,– G

0x00, 0x7F, 0x08, 0x08, 0x08, 0x7F,– H

0x00, 0x00, 0x41, 0x7F, 0x41, 0x00,– I

0x00, 0x20, 0x40, 0x41, 0x3F, 0x01,– J

0x00, 0x7F, 0x08, 0x14, 0x22, 0x41,– K

0x00, 0x7F, 0x40, 0x40, 0x40, 0x40,– L

0x00, 0x7F, 0x02, 0x0C, 0x02, 0x7F,– M

0x00, 0x7F, 0x04, 0x08, 0x10, 0x7F,– N

0x00, 0x3E, 0x41, 0x41, 0x41, 0x3E,– O

0x00, 0x7F, 0x09, 0x09, 0x09, 0x06,– P

0x00, 0x3E, 0x41, 0x51, 0x21, 0x5E,– Q

0x00, 0x7F, 0x09, 0x19, 0x29, 0x46,– R

0x00, 0x46, 0x49, 0x49, 0x49, 0x31,– S

0x00, 0x01, 0x01, 0x7F, 0x01, 0x01,– T

0x00, 0x3F, 0x40, 0x40, 0x40, 0x3F,— U

0x00, 0x1F, 0x20, 0x40, 0x20, 0x1F,– V

0x00, 0x3F, 0x40, 0x38, 0x40, 0x3F,– W

0x00, 0x63, 0x14, 0x08, 0x14, 0x63,– X

0x00, 0x07, 0x08, 0x70, 0x08, 0x07,– Y

0x00, 0x61, 0x51, 0x49, 0x45, 0x43,– Z

0x00, 0x00, 0x7F, 0x41, 0x41, 0x00,– [

0x00, 0x55, 0x2A, 0x55, 0x2A, 0x55,– 55

0x00, 0x00, 0x41, 0x41, 0x7F, 0x00,– ]

0x00, 0x04, 0x02, 0x01, 0x02, 0x04,– ^

0x00, 0x40, 0x40, 0x40, 0x40, 0x40,– _

0x00, 0x00, 0x01, 0x02, 0x04, 0x00,– ’

0x00, 0x20, 0x54, 0x54, 0x54, 0x78,– a

0x00, 0x7F, 0x48, 0x44, 0x44, 0x38,– b

0x00, 0x38, 0x44, 0x44, 0x44, 0x20,– c

0x00, 0x38, 0x44, 0x44, 0x48, 0x7F
a78a
,– d

0x00, 0x38, 0x54, 0x54, 0x54, 0x18,– e

0x00, 0x08, 0x7E, 0x09, 0x01, 0x02,– f

0x00, 0x18, 0xA4, 0xA4, 0xA4, 0x7C,– g

0x00, 0x7F, 0x08, 0x04, 0x04, 0x78,–h

0x00, 0x00, 0x44, 0x7D, 0x40, 0x00,– i

0x00, 0x40, 0x80, 0x84, 0x7D, 0x00,– j

0x00, 0x7F, 0x10, 0x28, 0x44, 0x00,– k

0x00, 0x00, 0x41, 0x7F, 0x40, 0x00,– l

0x00, 0x7C, 0x04, 0x18, 0x04, 0x78,– m

0x00, 0x7C, 0x08, 0x04, 0x04, 0x78,– n

0x00, 0x38, 0x44, 0x44, 0x44, 0x38,– o

0x00, 0xFC, 0x24, 0x24, 0x24, 0x18,– p

0x00, 0x18, 0x24, 0x24, 0x18, 0xFC,–q

0x00, 0x7C, 0x08, 0x04, 0x04, 0x08,– r

0x00, 0x48, 0x54, 0x54, 0x54, 0x20,– s

0x00, 0x04, 0x3F, 0x44, 0x40, 0x20,– t

0x00, 0x3C, 0x40, 0x40, 0x20, 0x7C,– u

0x00, 0x1C, 0x20, 0x40, 0x20, 0x1C,– v

0x00, 0x3C, 0x40, 0x30, 0x40, 0x3C,– w

0x00, 0x44, 0x28, 0x10, 0x28, 0x44,– x

0x00, 0x1C, 0xA0, 0xA0, 0xA0, 0x7C,– y

0x00, 0x44, 0x64, 0x54, 0x4C, 0x44,– z

0x14, 0x14, 0x14, 0x14, 0x14, 0x14,– horiz lines

}

local xinhaomange=

{0x07,0x09,0x11,0x21,0x41,0x41,0xFF,0x41,0x41,0x21,0x11,0x09,0x87,0x00,0xE0,0x00,0xF8,0x00,0xFE,

0x00,0x00,0x00,0x00,0x00,0x00,0x0F,0x00,0x0C,0x00,0x0F,0x00,0x0F,0x00,0x0F,0x00,0x0F,0x00,0x0f}

local xinhaoyiban={

0x07,0x09,0x11,0x21,0x41,0x41,0xFF,0x41,0x41,

0x21,0x11,0x09,0x87,0x00,0x00,0x00,0x00,0x00,

0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x0F,0x00,

0x00,0x00,0x0F,0x00,0x0F,0x00,0x00,0x00,0x00,

0x00,0x00}

local i2cid = 1

–local i=1

local function print(…) –串口打印函数，输出时候加上test

_G.print(“test”,…)

end

– 写命令

local function write_cmd(cmd)

local back=i2c.write(i2cid,0x00,cmd)

print(“writecmd “)

print(back)

return back

end

local function write_dat(dat)

local back=i2c.write(i2cid,0x40,dat)

return back

end

local function Set_Postion(a,b)

–write_cmd(0xb0+b)

local result

result= i2c.write(i2cid,0x00,0xb0+b)

print(“result——->>>”)

print(result)

result= i2c.write(i2cid,0x00,bit.bor(0x10,bit.rshift(bit.band(a,0xf0),4)))

print(“result——->>>”)

print(result)

result= i2c.write(i2cid,0x00,bit.bor(0x01,(bit.band(a,0x0f))))

print(“result——->>>”)

print(result)

–write_cmd(bit.bor(0x10,bit.rshift(bit.band(a,0xf0),4)))

–write_cmd(bit.bor(0x01,(bit.band(a,0x0f))))

end

local teststring=”123456”

local function OLED_P6x8Str(x, y,ch)

– i2c.setup(i2cid,i2c.SLOW,Address)

local c,i,j=0,0,1

for d=1,string.len(ch),1 do

print(“———————>>>>>>”)

c=string.byte(ch,d)-32–获取当前的字符ASCII

print(string.char(string.byte(ch,d)))

if(x>127)then

x=0

y=y+1

end

Set_Postion(x,y)
for i=1,6,1 do
-- write_dat(F6x8[c*6+i])
i2c.write(i2cid,0x40,F6x8[c*6+i])
print("   char n ascii\r\n")
print( string.format("%02X",F6x8[c*6+i]))
end
x=x+6
j=j+1

end

–i2c.close(i2cid)

end

local function OLED_FILL(bmpdat)

local x,y=0,0

for y=1,8,1 do

i2c.write(i2cid,0x00,0xb0+y-1)

i2c.write(i2cid,0x00,0x01)

i2c.write(i2cid,0x00,0x10)

for x=0,127,1 do
i2c.write(i2cid,0x40,bmpdat)
-- print("init",string.format("%02X",bmpdat))
end

end

end

local function Device_Init()

local i2cslaveaddr =0x3c –芯片地址

local Brightness=0xcf

local cmd = {0xAE,0x00,0x10,0x40,0x81,Brightness,0xA1,0xC8,0xA6,0xA8,0x3F,0xD3,0x00,0xD5,0x80,

0xD9,0xF1,0xDA,0x12,0xDB,0x40,0x20,0x02,0x8D,0x14,0xA4,0xA6,0xAF}

fre=i2c.setup(i2cid,i2c.SLOW,i2cslaveaddr)

print(fre)–100kHz频率

if fre ~= i2c.SLOW then

print(“init fail !”)

return

end

print(“IIC Init Successful!”,rtos.poweron_reason())

– for i=1,table.getn(cmd),1 do

– result= write_cmd(cmd[i])

– i2c.setup(i2cid,i2c.SLOW,Address)

print(“wrote >>”)

wrote_result= i2c.write(i2cid,0x00,cmd)

print(wrote_result)

– print(“init”,string.format(“%02X”,cmd[i]))

– end

OLED_FILL(0x00)–清屏

–Set_Postion(0,0)

end

local function test()

print(“———————>>>>>>”)

– print(‘f’)

–c=string.byte(‘f’)

print(c)

local i=0

for d=1,string.len(teststring),1 do

c=string.sub(teststring,d)

print(c)

end

end

local function showpic(x0,y0,x1,y1,pic)–起始地址，图片长度，宽度

local pic_back

local j,x,y=1,0,0

local cyctime,t=0,0–cyctime用来记录当前图片需要占用几行来显示

local length=table.getn(pic)

if((y1%8)==0) then –说明还要占一行

cyctime=y1/8

else

cyctime=y1/8+1 –此时cyctime记录的是需要写几行

end

– y1=y

for t=1,cyctime,1 do –一行一行的来写,竖着的8

Set_Postion(x0,y0+t-1)–因为t的初始值为1，所以要减去一才能够从0,0坐标开始显示,才是正确位置

print(“xxxxxxxx0”,x0)

for x=x0,x1+x0-1,1 do–循环x1-x0次，也就是图片的长度

print(“j”)

i2c.write(i2cid,0x40,pic[j])

print(j)

if(j