The demo projects for Allwinner D1 SBC
show the basic native compiling on D1 SBC.
cross compiling RISC-V Vector codes.
ic:bmp280 transport protocols:spi
ic:bh1750fvi transport protocols:i2c
linux uvc demo
Tilt module SW-520D codes
Tracking avoidance TCRT5000 codes
In this example, the PWM drive system is used to control the sound of the buzzer