BertLindeman
commented
3 years ago I assume this item to be a better one than #304 for this post
@dlech would you share the program you run (on the movehub?) for this issue? So we can run identical programs.
On my movehub I tried the build 1020 and 1022. I did not show the watchdog info though. Both "freeze" like this:
- printing stops
- the sensor stops blinking
- no change in hub light animation; like "program running" (blue fade-out/fade-in)
- Bluetooth drops on the code website after timeout? About 4 minutes?
- sensor starts blinking again
The last time it froze at iteration 356
My current program on the movehub:
#
# source Z:\home\bert\py\pybricks\issue\issue_#304_movehub_randint.py
#
from pybricks import version
print(version)
from pybricks.pupdevices import ColorSensor
from pybricks.parameters import Port
# from urandom import randint
from pybricks.hubs import MoveHub
hub = MoveHub()
_rand = hub.battery.voltage() + hub.battery.current() # seed
print("Battery:", str(hub.battery.voltage()) + "mV", str(hub.battery.current()) + "mA at start")
# Return a random integer N such that a <= N <= b.
def randint(a, b):
global _rand
_rand = 75 * _rand % 65537 # Lehmer
return _rand * (b - a + 1) // 65537 + a
lights = ColorSensor(Port.D).lights # MoveHub has a fixed motor on Port.B
count = 0
print("") # start at a new line
while True:
count += 1
print("Start iteration", count, end="")
for i in range(50):
lights.on([randint(0, 100) for j in range(3)])
print(".", end="")
print("; ended")
dlech
As reported in https://github.com/pybricks/support/issues/304#issuecomment-830472455, the Move hub Bluetooth seems to lock up occasionally somewhat similar to #306.
Symptoms are that Bluetooth becomes disconnected while running a program and pressing the hub button to stop the program works and makes the light blink (Bluetooth advertising) since the hub is now disconnected. Reconnection may be affected by #325, but that is a separate issue.