按照说明安装好matrix后LED LED实验正确的，可是接DS18B20后提示有问题，这个是什么问题，要怎么解决，如下是测试log信息：

root@NanoPi-NEO:~/matrix# matrix-gpio_out
Hardware:sun8i
Revision:0000
BoardType:68330
1: GPIO_PIN(7) value is 0
2: GPIO_PIN(7) value is 1
3: GPIO_PIN(7) value is 0
4: GPIO_PIN(7) value is 1
5: GPIO_PIN(7) value is 0
​

root@NanoPi-NEO:~/matrix/demo# matrix-temp_sensor 
Hardware:sun8i
Revision:0000
BoardType:68330
modprobe w1-gpio-board gpio=203
modprobe: FATAL: Module w1-gpio-board not found in directory /lib/modules/4.14.0
modprobe: FATAL: Module w1-gpio not found in directory /lib/modules/4.14.0
FAHW-Lib: Fail to opendir /sys/devices/w1_bus_master1/
Fail to get temperature
rmmod: ERROR: Module w1_gpio_board is not currently loaded
rmmod: ERROR: Module w1_gpio is not currently loaded
​