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在京东买了这个LED阵列板,写了一些代码。

sudo apt-get install wiringpi

add

spicc
spidev

to /etc/modules

./go smile

will compile smile.c and run it

add

/home/pi/LED/demo 

to /etc/rc.local , will run all demos on boot.

Pictures found at 树莓派LED阵列 - 张浩斌的文章 - 知乎 https://zhuanlan.zhihu.com/p/50784515

screen数组是初始图像,0表示黑色,1~7对应七种颜色。但是由于电流的限制,一行亮的数值超过一定值就都变成红色了。 一行最多一个白色,一行两个7就会都变成黄色。

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demo source for LEDMatrix from https://i-item.jd.com/29636682071.html

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