Machine module error - cant import machine module on micropython

Autonomous Machines Jetson & Embedded Systems Jetson Nano
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1

I want to control the leds as I want using the p9813 led driver and I am using Jetson Nano. There is a ready-made code that I found on github. I try this but I get module error. I’ve looked through machine modules from Pypi and I’m still getting the same error even though I’ve installed a few of them. Which machine module do I need to install?

from machine import Pin
import p9813

pin_clk = Pin(5, Pin.OUT)
pin_data = Pin(4, Pin.OUT)

num_leds = 10
chain = p9813.P9813(pin_clk, pin_data, num_leds)

#set the first LED to red
chain[0] = (255, 0, 0)

#set the second LED to green
chain[1] = (0, 255, 0)

#rite data to all LEDs
chain.write()

#make all LEDs red
chain.fill((255,0,0))
chain.write()

#turn off all LEDs
chain.reset()

I have micropython-p9813 (1.0.0), machine (0.0.1) and Python-Machine (1.0.2) but I get an error while installing machine-py. I got this error in other places as well, but I could not solve it. I am using pip3.

Command “python setup.py egg_info” failed with error code 1 in /tmp/pip-build-f1m5t3ju/matplotlib/

Or is there any other way i can control the led driver with jetson nano?

3

hello bugrahan.ismailoglu,

it looks like 1st line report an error, it’s machine module contains specific functions related to the hardware on a particular board.
these code looks toggle RGB LED pins, you may adapt those changes into GitHub - NVIDIA/jetson-gpio: A Python library that enables the use of Jetson's GPIOs

4

Thank you for answering. actually i tried to try that too, but i got an error at some point. Now I’ll try again and I can ask questions again.

5

I looked at the link you sent, but although I did it step by step, I couldn’t quite understand it. sample scripts do not work because it is a module used in rasberry pi. I guess I need to examine the complete library API part?

Additionally, do you have a solution for the machine module?

6

hello bugrahan.ismailoglu,

you should make sure that you’re trying to run your program on micropython board.
can you try modify the code to import machine to resolve this?

7

Dear Jerry,

I have examined this link in detail, but unfortunately I could not do exactly what I wanted to do. This defines the pins using gpio in the link you posted. But I also use the p9813 library. Here I need to import machine
and some functions in this library are used. So actually I still haven’t been able to do exactly what I wanted to do.

As I mentioned, I also specified the modules I loaded in the source attachment. Is there anything else I should do?

8

hello bugrahan.ismailoglu,

what’s the failure now?
please confirm you’re able to import all those necessary libraries.

10

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