Python GPIO/peripheral library for ROCK 5

#1

Ported the adafruit blinka library to Rock 5.
Supported (and mainly untested): GPIO I2C SPI UART PWM ADC

Repo: https://github.com/happyme531/Adafruit_Blinka/tree/rk3588-rock-5

Install guide: https://learn.adafruit.com/circuitpython-on-orangepi-linux/orange-pi-pc-setup

When you finished the guide please replace the adafruit_blinka package with the repo package to get the Rock5 support.

The pin name is named after the physical pin location (and the peripheral function name). For example, board.D3 === board.I2C7_SDA_M3 -> GPIO4_B3

Plz refer to https://wiki.radxa.com/Rock5/hardware/5b/gpio for more.

This branch is awaiting testing so I can open a pull request to merge it into the main repo https://github.com/adafruit/Adafruit_Blinka which can be installed directly using pip.

The circuitpython ecosystem is truly great, achieving the goal of write once, run anywhere(microcontroller, arm sbc, x86 machine) and 400+ libraries is available so I port this instead of mraa or RPI.GPIO

10 Likes
Gpio-i2c-uart-spi-(rock 5b)
#2

Hi,

Thanks for porting this. Have you tried using pwmio with code such as:

PWMA = pwmio.PWMOut(board.PWM8, frequency=1000)

or

PWMA = pwmio.PWMOut(board.D32, frequency=1000)

currently, I have had no luck getting PWM working.

Thanks.

#3

Hi,

very cool. You make my Day. TNX a lot!

1 Like
#4

Hi @hallo1
when you say “When you finished the guide please replace the adafruit_blinka package with the repo package to get the Rock5 support.”

Could you tell me how you do this?

#5

I have installed the package. It does seem to work, but when turning a pin off, it seems to drop to around 50mv rather than off. The pins I have off normally seem to sit around .1mv.