raspberry pi pico (micropython) throws ImportError

Question

if i run this code in VsCode with python it works just fine but if i run it with MicroPython i get the error ImportError: no module named 'cv2'

#from machine import ADC,PWM,Pin
import cv2
import mediapipe as mp

LandMarks = mp.solutions.drawing_utils
HandsModule = mp.solutions.hands

cam = cv2.VideoCapture(0)
forcc = cv2.VideoWriter_fourcc('m','p','4','v')

with HandsModule.Hands(static_image_mode = False,min_detection_confidence=0.7,min_tracking_confidence= 0.7,max_num_hands=2) as hands:


    while True:

        ret,frame = cam.read()
        frame1 = cv2.resize(frame,(640,480))

        results = hands.process(cv2.cvtColor(frame1,cv2.COLOR_BGR2RGB))

        if results.multi_hand_landmarks != None:
            for handlandmarks in results.multi_hand_landmarks:
                LandMarks.draw_landmarks(frame1,handlandmarks,HandsModule.HAND_CONNECTIONS)


        cv2.imshow('img',frame1)
        if cv2.waitKey(1) & 0xFF == ord('q'):
            break

note: i just commented import machine because python doesn't recognize it as MicroPython

You are aware of the main difference between a "Pico" and the other Raspberry Pis (and other computers)? — Klaus D., Aug 06 '22 at 05:49
i would really appreciate it if you let me know the difference — VLAD 05, Aug 06 '22 at 06:09
It is just a microcontroller and does not have a CPU. That means it has strict limitations on resources and what software it can run. — Klaus D., Aug 06 '22 at 06:20
i'm trying to control leds using my lap camera how can i write the write code for it — VLAD 05, Aug 06 '22 at 06:32
Run the image processing on your laptop, then send the LED-controlling instructions to your Pico using TCP/IP (if you have Pico W) or via serial if not. — Mark Setchell, Aug 06 '22 at 08:34

score 1 · Answer 1 · answered Aug 06 '22 at 16:52

As @Klaus D. said, a Pico is a microcontroller, not a computer. As such, it cannot run such python programs. It can however, run micropython. If you wish to run the script you specified, you need to use a different Raspberry pi. If you wish to use a Pico W (which I would not recommend), As Mark Setchell said, you will need to do extra processing (on your laptop), which adds additional complexity.

The easiest would be to just use a Raspberry Pi Zero W or Raspberry Pi 4 (and not use micropython), which would allow you to run the specified script pretty straightforwardly.

raspberry pi pico (micropython) throws ImportError

1 Answers1