1 前言

本章测试下air105+gc9306+GC032A拍照。

2 硬件

开发板：air105
camera：105附带的camera模组——GC032A
lcd屏幕：gc9306x

官方的demo使用的时PA10作为拍照按键，由于我焊接排针朝上，盖在面包板上，boot按键按不到，使用keyboord0/1作为拍照按键。

3 官方代码

https://gitee.com/openLuat/LuatOS/blob/master/demo/camera/Air105/capture/main.lua
官方示例使用的屏幕是st7789，需要根据自己的情况选择。

4 调整代码

我将camera的初始化放在了一个lua文件中。
PS：如果使用的是105固件版本 v0005，则需要将示例中lcd_init的gc9306x改为gc9306，如果是更高的版本则不需要这样修改。

main.lua

PROJECT = "camerademo"
VERSION = "1.0.0"local sys = require "sys"
require("t8_camera")
--[[
-- LCD接法示例, 以Air105开发板的HSPI(SPI5)为例
LCD管脚       Air105管脚
GND          GND
VCC          3.3V
SCL          (PC15/HSPI_SCK)
SDA          (PC13/HSPI_MOSI)
RES          (PC12/HSPI_MISO)
DC           (PE08) --开发板上的U3_RX
CS           (PC14/HSPI_CS)
BL           (PE09) --开发板上的U3_TX提示:
1. 只使用SPI的时钟线(SCK)和数据输出线(MOSI), 其他均为GPIO脚
2. 数据输入(MISO)和片选(CS), 虽然是SPI, 但已复用为GPIO, 并非固定,是可以自由修改成其他脚
]]if wdt thenwdt.init(15000)--初始化watchdog设置为15ssys.timerLoopStart(wdt.feed, 10000)--10s喂一次狗
endspi_lcd = spi.deviceSetup(5,pin.PC14,0,0,8,20*1000*1000,spi.MSB,1,1)-- log.info("lcd.init",
-- lcd.init("st7735s",{port = "device",pin_dc = pin.PE08 ,pin_rst = pin.PC12,pin_pwr = pin.PE09,direction = 2,w = 160,h = 80,xoffset = 1,yoffset = 26},spi_lcd))-- log.info("lcd.init",
-- lcd.init("st7789",{port = "device",pin_dc = pin.PE08 ,pin_rst = pin.PC12,pin_pwr = pin.PE09,direction = 0,w = 240,h = 320,xoffset = 0,yoffset = 0},spi_lcd))-- log.info("lcd.init",
-- lcd.init("st7735",{port = "device",pin_dc = pin.PE08 ,pin_rst = pin.PC12,pin_pwr = pin.PE09,direction = 0,w = 128,h = 160,xoffset = 0,yoffset = 0},spi_lcd))log.info("lcd.init",
lcd.init("gc9306",{port = "device",pin_dc = pin.PE08 ,pin_rst = pin.PC12,pin_pwr = pin.PE09,direction = 0,w = 240,h = 320,xoffset = 0,yoffset = 0},spi_lcd))local uartid = 1 -- 根据实际设备选取不同的uartid
--初始化
local result = uart.setup(uartid,--串口id115200,--波特率8,--数据位1--停止位
)t8_camera_init()
t8_camera_start()sys.taskInit(function()while 1 doresult, data = sys.waitUntil("CAPTURE", 30000)if result==true and data==true thenlog.debug("摄像头捕获图像")camera.capture(camera_id, "/temp.jpg", 1)sys.wait(2000)local f = io.open("/temp.jpg", "r")local dataif f thendata = f:read("*a")log.info("fs", #data)f:close()enduart.write(uartid, data) --找个能保存数据的串口工具保存成文件就能在电脑上看了, 格式为JPGendendend)-- 用户代码已结束---------------------------------------------
-- 结尾总是这一句
sys.run()
-- sys.run()之后后面不要加任何语句!!!!!

t8_camera.lua

--GC032A输出rgb图像初始化命令
local GC032A_InitReg =
{zbar_scan = 0,--是否为扫码draw_lcd = 1,--是否向lcd输出i2c_id = 0,i2c_addr = 0x21,pwm_id = 5;pwm_period  = 12*1000*1000,pwm_pulse = 0,sensor_width = 640,sensor_height = 480,color_bit = 16,init_cmd ={0xf3,0xff,0xf7,0x01,0xf8,0x03,0xf9,0xce,0xfa,0x00,0xfc,0x02,0xfe,0x02,0x81,0x03,0xfe, 0x00,0x77, 0x64,0x78, 0x40,0x79, 0x60,0xfe, 0x00,0x03, 0x01,0x04, 0xcb,0x05, 0x01,0x06, 0xb2,0x07, 0x00,0x08, 0x10,0x0a, 0x00,0x0c, 0x00,0x0d, 0x01,0x0e, 0xe8,0x0f, 0x02,0x10, 0x88,0x17, 0x54,0x19, 0x08,0x1a, 0x0a,0x1f, 0x40,0x20, 0x30,0x2e, 0x80,0x2f, 0x2b,0x30, 0x1a,0xfe, 0x02,0x03, 0x02,0x05, 0xd7,0x06, 0x60,0x08, 0x80,0x12, 0x89,0xfe, 0x00,0x18, 0x02,0xfe, 0x02,0x40, 0x22,0x45, 0x00,0x46, 0x00,0x49, 0x20,0x4b, 0x3c,0x50, 0x20,0x42, 0x10,0xfe, 0x01,0x0a, 0xc5,0x45, 0x00,0xfe, 0x00,0x40, 0xff,0x41, 0x25,0x42, 0xef,0x43, 0x10,0x44, 0x82,0x46, 0x22,0x49, 0x03,0x52, 0x02,0x54, 0x00,0xfe, 0x02,0x22, 0xf6,0xfe, 0x01,0xc1, 0x38,0xc2, 0x4c,0xc3, 0x00,0xc4, 0x2c,0xc5, 0x24,0xc6, 0x18,0xc7, 0x28,0xc8, 0x11,0xc9, 0x15,0xca, 0x20,0xdc, 0x7a,0xdd, 0xa0,0xde, 0x80,0xdf, 0x88,0xfe, 0x01,0x50, 0xc1,0x56, 0x34,0x58, 0x04,0x65, 0x06,0x66, 0x0f,0x67, 0x04,0x69, 0x20,0x6a, 0x40,0x6b, 0x81,0x6d, 0x12,0x6e, 0xc0,0x7b, 0x2a,0x7c, 0x0c,0xfe, 0x01,0x90, 0xe3,0x91, 0xc2,0x92, 0xff,0x93, 0xe3,0x95, 0x1c,0x96, 0xff,0x97, 0x44,0x98, 0x1c,0x9a, 0x44,0x9b, 0x1c,0x9c, 0x64,0x9d, 0x44,0x9f, 0x71,0xa0, 0x64,0xa1, 0x00,0xa2, 0x00,0x86, 0x00,0x87, 0x00,0x88, 0x00,0x89, 0x00,0xa4, 0xc2,0xa5, 0x9b,0xa6, 0xc8,0xa7, 0x92,0xa9, 0xc9,0xaa, 0x96,0xab, 0xa9,0xac, 0x99,0xae, 0xce,0xaf, 0xa9,0xb0, 0xcf,0xb1, 0x9d,0xb3, 0xcf,0xb4, 0xac,0xb5, 0x00,0xb6, 0x00,0x8b, 0x00,0x8c, 0x00,0x8d, 0x00,0x8e, 0x00,0x94, 0x55,0x99, 0xa6,0x9e, 0xaa,0xa3, 0x0a,0x8a, 0x00,0xa8, 0x55,0xad, 0x55,0xb2, 0x55,0xb7, 0x05,0x8f, 0x00,0xb8, 0xc7,0xb9, 0xa0,0xfe, 0x01,0xd0, 0x40,0xd1, 0x00,0xd2, 0x00,0xd3, 0xfa,0xd4, 0x4a,0xd5, 0x02,0xd6, 0x44,0xd7, 0xfa,0xd8, 0x04,0xd9, 0x08,0xda, 0x5c,0xdb, 0x02,0xfe, 0x00,0xfe, 0x00,0xba, 0x00,0xbb, 0x06,0xbc, 0x0b,0xbd, 0x10,0xbe, 0x19,0xbf, 0x26,0xc0, 0x33,0xc1, 0x3f,0xc2, 0x54,0xc3, 0x68,0xc4, 0x7c,0xc5, 0x8c,0xc6, 0x9c,0xc7, 0xb4,0xc8, 0xc9,0xc9, 0xd8,0xca, 0xe4,0xcb, 0xee,0xcc, 0xf4,0xcd, 0xf9,0xce, 0xfa,0xcf, 0xff,0xfe, 0x00,0x5a, 0x08,0x5b, 0x0f,0x5c, 0x15,0x5d, 0x1c,0x5e, 0x28,0x5f, 0x36,0x60, 0x45,0x61, 0x51,0x62, 0x6a,0x63, 0x7d,0x64, 0x8d,0x65, 0x98,0x66, 0xa2,0x67, 0xb5,0x68, 0xc3,0x69, 0xcd,0x6a, 0xd4,0x6b, 0xdc,0x6c, 0xe3,0x6d, 0xf0,0x6e, 0xf9,0x6f, 0xff,0xfe, 0x00,0x70, 0x50,0xfe, 0x00,0x4f, 0x01,0xfe, 0x01,0x0c, 0x01,0x0d, 0x00,0x12, 0xa0,0x13, 0x4a,0x44, 0x04,0x1f, 0x40,0x20, 0x40,0x23, 0x0a,0x26, 0x9a,0x3e, 0x20,0x3f, 0x2d,0x40, 0x40,0x41, 0x5b,0x42, 0x82,0x43, 0xb7,0x04, 0x0a,0x02, 0x79,0x03, 0xc0,0xfe, 0x01,0xcc, 0x08,0xcd, 0x08,0xce, 0xa4,0xcf, 0xec,0xfe, 0x00,0x81, 0xb8,0x82, 0x04,0x83, 0x10,0x84, 0x01,0x86, 0x50,0x87, 0x18,0x88, 0x10,0x89, 0x70,0x8a, 0x20,0x8b, 0x10,0x8c, 0x08,0x8d, 0x0a,0xfe, 0x00,0x8f, 0xaa,0x90, 0x1c,0x91, 0x52,0x92, 0x03,0x93, 0x03,0x94, 0x08,0x95, 0x6a,0x97, 0x00,0x98, 0x00,0xfe, 0x00,0x9a, 0x30,0x9b, 0x50,0xa1, 0x30,0xa2, 0x66,0xa4, 0x28,0xa5, 0x30,0xaa, 0x28,0xac, 0x32,0xfe, 0x00,0xd1, 0x3f,0xd2, 0x3f,0xd3, 0x38,0xd6, 0xf4,0xd7, 0x1d,0xdd, 0x72,0xde, 0x84,0xfe, 0x00,0x05, 0x01,0x06, 0xad,0x07, 0x00,0x08, 0x10,0xfe, 0x01,0x25, 0x00,0x26, 0x4d,0x27, 0x01,0x28, 0xce,0x29, 0x01,0x2a, 0xce,0x2b, 0x01,0x2c, 0xce,0x2d, 0x01,0x2e, 0xce,0x2f, 0x01,0x30, 0xce,0x31, 0x01,0x32, 0xce,0x33, 0x01,0x34, 0xce,0x3c, 0x10,0xfe, 0x00,0xfe,0x00,0x44,0x06,--RGB565输出0x46,0x0f,}
}local camera_pwdn = gpio.setup(pin.PD06, 1, gpio.PULLUP) -- PD06 camera_pwdn引脚
local camera_rst = gpio.setup(pin.PD07, 1, gpio.PULLUP) -- PD07 camera_rst引脚camera_rst(0)function t8_camera_init()-- 拍照, 自然就是RGB输出了camera_id = camera.init(GC032A_InitReg)--屏幕输出rgb图像
endfunction t8_camera_start()log.info("摄像头启动")camera.start(camera_id)--开始指定的cameragpio.setup(pin.PA10, function()sys.publish("CAPTURE", true)end, gpio.PULLUP,gpio.FALLING)end

5 结果

图像显示正常。

6 小结

后续加上105的tf卡，将图片存到tf卡中。
或者使用uart传输到电脑上。

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【Luat-air105】8.1 camera拍照

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