ESP32CAM micropython固件制作 win10 Ubuntu18.04
ESP32CAM micropython固件制作
- 系统
- 编译
- 部分错误信息
- camera部分参数
系统
win10 Ubuntu18.04子系统
修改源
sudo cp /etc/apt/sources.list /etc/apt/sources.list.bak #备份
sudo vim /etc/apt/sources.list #修改
##中科大源
deb https://mirrors.ustc.edu.cn/ubuntu/ bionic main restricted universe multiverse
deb-src https://mirrors.ustc.edu.cn/ubuntu/ bionic main restricted universe multiverse
deb https://mirrors.ustc.edu.cn/ubuntu/ bionic-updates main restricted universe multiverse
deb-src https://mirrors.ustc.edu.cn/ubuntu/ bionic-updates main restricted universe multiverse
deb https://mirrors.ustc.edu.cn/ubuntu/ bionic-backports main restricted universe multiverse
deb-src https://mirrors.ustc.edu.cn/ubuntu/ bionic-backports main restricted universe multiverse
deb https://mirrors.ustc.edu.cn/ubuntu/ bionic-security main restricted universe multiverse
deb-src https://mirrors.ustc.edu.cn/ubuntu/ bionic-security main restricted universe multiverse
deb https://mirrors.ustc.edu.cn/ubuntu/ bionic-proposed main restricted universe multiverse
deb-src https://mirrors.ustc.edu.cn/ubuntu/ bionic-proposed main restricted universe multiverse
安装一堆新包，包括gcc，g ++和make。
sudo apt update
sudo apt upgrade
sudo apt install build-essential
编译
操作步骤 sudo -s用root模式
cd
mkdir Esp32Cam
cd Esp32Cam
下载micropython和esp-idf
git clone https://github.com/micropython/micropython.git
git clone https://github.com/espressif/esp-idf.git
查看esp32所对应的espidf版本（重要）
cat micropython/ports/esp32/Makefile | grep ESPIDF_SUPHASH | head -1
显示：ESPIDF_SUPHASH :=？？？？？？？
cd esp-idf
下载espidf（粘贴ESPIDF_SUPHASH结果）
git checkout ？？？？？？
git submodule update --init --recursive
进入components文件夹，下载camera
cd components
git clone https://github.com/espressif/esp32-camera.git
下载micropython文件
cd ~/Esp32Cam/micropython
git submodule update --init --recursive
加入环境变量
export PATH="/home/dul/micropython/xtensa-esp32-elf/bin:/home/st/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
export ESPIDF=/home/dul/Esp32Cam/esp-idf
mpy_cross是micorpython的python脚本编译工具，可以将python文件编译成micropython的byte code直接运行，这样做的好处如下：
1.减小flash占用
2.让别人看不到源代码
make -C mpy-cross
进入ports文件夹
cd ports
将esp32文件夹复制到esp32-cam文件夹
cp -r esp32 esp32-cam
准备好编译需要的相关文件
cd esp32-cam
在 Ubuntu中复制win10 C盘文件到这里(
cp /mnt/c/esp/mpconfigport.h mpconfigport.h
cp /mnt/c/esp/modcamera.c modcamera.c
cp /mnt/c/esp/main.c main.c
cp /mnt/c/esp/Makefile Makefile
cp /mnt/c/esp/boards/sdkconfig.base boards/sdkconfig.base
这里可以提前下64位xetensa-esp32-elf ，5.2.0
cd ~/Downloads
wget https://dl.espressif.com/dl/xtensa-esp32-elf-linux64-1.22.0-80-g6c4433a-5.2.0.tar.gz
解压到esp32-cam文件夹
cd ~/Esp32Cam/micropython/esp32-cam
tar -xzf ~/Downloads/xtensa-esp32-elf-linux64-1.22.0-80-g6c4433a-5.2.0.tar.gz
编译 V=1显示所有信息
make V=1
查看固件是否成功
strings build-GENERIC/firmware.bin | grep MicroPython | tail -1
查看camera是否存在
strings build-GENERIC/firmware.bin | grep camera
显示结果：
camera
[0;31mE (%d) %s: Detected camera not supported.
/home/dul/Esp32Cam/esp-idf/components/esp32-camera/driver/camera.c
camera_xclk
将build-GENERIC/firmware.bin拷出到 /mnt/c/esp/
cp build-GENERIC/firmware.bin /mnt/c/esp/firmware.bin
部分错误信息
发生错误：No module named pyparsing
pip install pyparsing
make PYTHON=python2
参考这个可以直接看
camera部分参数
import camera
camera.init()
camera.framesize(1) # 1~11分辨率
1=160x120 2=160x128 3=176 x 144 4=240 x 176 5=320 x 240 6=400x296
7=640x480 8=800x600 9=1024x768 10=1280x1024 11 =1600x1200
camera.quality(10) # 10~63质量 高~低
camera.contrast(0) # -2~2 对比度
camera.saturation(0) #-2~2 饱和度
camera.brightness(0) #-2~2 亮度
camera.aelevels(0）#-2~2
camera.aecvalue(0) #-2~2
camera.agcgain(0）# 0~30
camera.speffect(0) #0~6
camera.whitebalance(0) #0~4 白平衡
camera.flip(0) #0正、1翻转