Questions tagged [pybricks-micropython]
14 questions
2
votes
1 answer
Send Data between EV3 and PC
I am programming a roboter, and it needs to send data between the EV3 and my laptop (Windows)
I run pybricks on the EV3, which enables me to code in python.
I already did research, but the only things that are remaining are some blogs from 2014 that…
Liam K.
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- 7
2
votes
1 answer
How does the stalled() function work in Pybricks-MicroPython
MicroPython 2.0 beta 5
Trying to understand how the stalled() function on the motor works. I run a motor at dc of 100, and hold the wheel so that it cannot move.
But the stalled function doesn't fire, indeed whatever I do I don't seem able to get it…
user3069232
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1
vote
1 answer
Threading on EV3 micropython
I am trying to write some code for my EV3 brick. I am really struggling to get multithreading to work. I am using threading module, it throws no error but function that are supposed to run on another thread aren't run at all.
My code:
…
nicoebd
- 46
- 5
1
vote
1 answer
Intellisense doesn't recognise the motor class of pybricks, but everything else
I want to code with pybricks and so far, everything worked, except of the Motor class. I use Visual Studio Code.
This are the imports:
from pybricks.hubs import EV3Brick
from pybricks.ev3devices import ColorSensor
from pybricks.ev3devices import…
Liam K.
- 75
- 7
1
vote
1 answer
Drive function in MicroPython for LEGO EV3
I'm trying to understand the functions from DriveBase class from MicroPython for EV3.
I instantiate the DriveBase object like this
robot = DriveBase(left_motor, right_motor, wheel_diameter=55.5, axle_track=104)
When I run robot.drive(speed, angle)…
Mihai
- 11
- 3
1
vote
2 answers
How do I get immediate response between motors and sensors?
I am new to pybricks and have found very little documentation to help answer my own query. I have written what I thought would be a simple program to spin my robot on the spot until the UltrasonicSensor sees something. It will then push forwards. If…
MisterWeary
- 605
- 1
- 9
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1
vote
1 answer
Using Python I need a Concurrently While Loop with a PS4 Controller Event Loop
Using Python I want to run two loops concurrently. The first is a regular while loop. The second is a while loop based on file events from a Bluetooth connected PS4 controller.
The two loops need to know what the other loops are up to.
Here is the…
Adam
- 125
- 1
- 12
1
vote
1 answer
UART communication in ESP-12E
I am using micro python in same board to start a serial communication
from machine import UART
uart = UART(1, 9600)
uart.init(9600, bits=8, parity=None, stop=1)
uart.write('abc')
and reading serial data using usb to serial…
Abhishek bhatia
- 33
- 7
1
vote
1 answer
random in MicroPython does appear to do anything?
Using pybricks-micropython
Running this command to get a random port number, works under CPython.
import random
port = random.randint(50000,50999)
produces a number, only it is hardly random it is the same number each time I run the script. I am…
user3069232
- 8,587
- 7
- 46
- 87
0
votes
1 answer
Can't connect RFCOMM socket: Connection refused. GDBus.error:org.bluez.error.failed:Protocol not available
I'm trying to connect a lego ev3 with micropython to a raspberry pi via bluetooth. Installed bluez and blueman on raspberry. I made the lego address trusted and connected it via the command line using sudo rfcomm connect hci0 . The pairing…
oleg
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- 3
0
votes
0 answers
microPython - simon game - problem with clearing an array
I'm building a Simon game using lego's ev3 and microPython.
My code is attached underneath. I think I have a problem with each iteration emptying my array of pressings.
Thanks
#!/usr/bin/env pybricks-micropython
from pybricks.hubs import…
0
votes
0 answers
Error called on mqtt.publish after a while of running the program
Traceback (most recent call last):
File "", line 115, in wind_Speed_Pulse
File "", line 65, in publish_Wind_Speed
File "umqtt/simple.py", line 134, in publish
OSError: [Errno 104] ECONNRESET
'''Import Libraries'''
from machine…
0
votes
1 answer
Can you use events or interrupts with EV3 micropython?
I am attempting to write a program for a LEGO Mindstorms EV3 brick that requires actions to be taken when a specific input is recorded by the sensors. As far as I can tell, the only way to do this in EV3 micropython / pybricks is by busy-waiting.…
Simen Eilevstjønn
- 31
- 1
- 9
0
votes
1 answer
Is there a Bug in motor.run_target command?
MicroPython 1.0.0,
ev3dev Linux echo 4.14.96-ev3dev-2.3.2-ev3 #1 PREEMPT Sun Jan 27 21:27:35 CST 2019 armv5tejl GNU/Linux
#!/usr/bin/env pybricks-micropython
from pybricks import ev3brick as brick
from pybricks.ev3devices import Motor
from…
user3069232
- 8,587
- 7
- 46
- 87