Full Matrix module blanked.
paulvanderheijden90 opened this issue · 4 comments
paulvanderheijden90 commented
Hello,
i made a daisy chained 19 module led matrix.
I noticed that sometime 1 module is blanked out after some time.
so it is complete off.
I share the code. I use a program "multimon" to get information from a RTL Antenna.
This is the code.
import time
import datetime
import sys
import subprocess
import os
import re
import RPi.GPIO as GPIO
from datetime import timedelta
from dateutil import tz
######################################
from luma.core.interface.serial import spi, noop
from luma.core.render import canvas
from luma.core.legacy import text, show_message
from luma.core.virtual import viewport
from luma.core.legacy.font import proportional, CP437_FONT, TINY_FONT, SINCLAIR_FONT, LCD_FONT
from luma.led_matrix.device import max7219
######################################
# Define device settings
######################################
serial = spi(port=0, device=0, gpio=noop())
device = max7219(serial, width=80, height=16, block_orientation=-90)
virtual = viewport(device, width=80, height=16)
GPIO.setwarnings(False)
GPIO.setmode(GPIO.BCM)
GPIO.setup(17, GPIO.OUT)
GPIO.setup(27, GPIO.OUT)
GPIO.setup(22, GPIO.OUT)
GPIO.output(17,1)
GPIO.output(27,1)
GPIO.output(22,1)
######################################
mx_crit = True
mx_puls = True
mx_findcode=True
ii=0
capcode_avls_steenbergen= "1201999" #"1201585"
def curtime():
return time.strftime("%H:%M:%S %Y-%m-%d")
#device.clear()
time.sleep(0.5)
with canvas(virtual) as draw:
text(draw, (4, 1), "Check Signaal", fill="white", font=proportional(LCD_FONT))
# text(draw, (2, 9), "00", fill="white", font=proportional(LCD_FONT))
# text(draw, (19, 9), "00", fill="white", font=proportional(LCD_FONT))
text(draw, (32, 9), "Wacht...", fill="white", font=proportional(LCD_FONT))
multimon_ng = subprocess.Popen("rtl_fm -f 169.65M -M fm -s 22050 | multimon-ng -a FLEX -t raw -",
stdout=subprocess.PIPE,
stderr=open('error.txt','a'),
shell=True)
print("run")
try:
while True:
# line = "FLEX: 2018-12-02 12:12:12 1600/2/A 11.059 [1201999] ALN P 1 INCI-06 BR Gebouw Krommeweg Steenbergen NB 201634 "
line = multimon_ng.stdout.readline()
multimon_ng.poll()
if line.__contains__("ALN"):
# device.clear()
time.sleep(0.5)
with canvas(virtual) as draw:
device.contrast(0 * 16)#tot 15
text(draw, (24, 1), '20-1681*', fill="white", font=proportional(LCD_FONT))
if line.startswith('FLEX'):
flex = line[0:5]
timestamp = line[6:25]
melding = line[59:]
meldingp1 = line[63:]
groupid = line[37:43]
capcode = line[45:54]
prio = line[60:63]
if capcode_avls_steenbergen in (str(capcode)):
# os.kill(multimon_ng.pid, 9)
GPIO.output(17,0)
GPIO.output(27,0)
print("17,27 aan")
FMT="%d/%m/%y-%H:%M:%S:%f" #format waarin de tijd moet worden weergeven
old_tijd = timedelta(seconds = 0)
beweegsnelheid = timedelta(seconds = 0)
rest_tijd = timedelta(seconds = 0)#defineer de rest tijd en zet deze op 0
pinpuls_tijd = timedelta(seconds = 1)
melding_tijd = timedelta(seconds = 600)
critical_tijd = timedelta(seconds = 330)
start_tijd = datetime.datetime.now().strftime(FMT) #bepaal het moment dat het bericht is binnen gekomen.
pos=(melding.find("INCI-")) #bepaal de positie van inci om dit door te geven op het aparte scherm
if pos > 0:
inci= melding[pos+5:(pos+7)] #bepaal inci
inci_BV= (int(inci)+20) #bepaal inci Bevelvoerder
else:
inci="**"
inci_BV= "**"
lengte=len(melding) #bepaal de lengte van het bericht
i=80
while rest_tijd < melding_tijd:
act_tijd = datetime.datetime.now().strftime(FMT)
rest_tijd = (datetime.datetime.strptime(act_tijd,(FMT)) - datetime.datetime.strptime(start_tijd,(FMT)))
if rest_tijd > beweegsnelheid + (timedelta(microseconds =30000)):
if i < (-(round(lengte*5))):
i=80
if rest_tijd > pinpuls_tijd:
if mx_puls:
GPIO.output(27,1)
mx_puls = False
print("27 uit")
if mx_findcode:
device.clear()
mx_findcode = False
with canvas(virtual) as draw:
device.contrast(15 * 16)#tot 15
dt = str(rest_tijd)
t = dt[:7]
if rest_tijd > critical_tijd:
if (rest_tijd!=old_tijd):
if mx_crit:
GPIO.output(22,0)
mx_crit = False
print("22 aan")
if i % 2 == 0:
ii=ii+1
if ii>5:
text(draw, (31, 8), chr(7), fill="white")
text(draw, (65, 8), chr(7), fill="white")
ii = 0
old_tijd = rest_tijd
text(draw, (39, 9), t[2:], fill="white", font=proportional(LCD_FONT))
text(draw, (2, 9), inci, fill="white", font=proportional(LCD_FONT))
text(draw, (19, 9), str(inci_BV), fill="white", font=proportional(LCD_FONT))
if pos > 0:
text(draw, (i, 1), melding[:pos] + melding[pos+7:], fill="white", font=proportional(LCD_FONT))
else:
text(draw, (i, 1), melding, fill="white", font=proportional(LCD_FONT))
i=i-1
beweegsnelheid=rest_tijd
else:
device.clear()
os.kill(multimon_ng.pid, 9)
mx_crit = True
mx_puls = True
mx_findcode = True
GPIO.output(17,1)
GPIO.output(27,1)
GPIO.output(22,1)
print("17,27 en 22 uit")
print("FINSH: "+melding)
time.sleep(2)
os.system("shutdown -r now")
except KeyboardInterrupt:
GPIO.output(17,1)
GPIO.output(27,1)
GPIO.output(22,1)
device.clear()
GPIO.cleanup()
it is always the same module. I try to change the module and wire's
Can you check if I made some fails in the code ?
thijstriemstra commented
I would make a much smaller and simpler test program and use that to find mistakes. Can you make a small example that reproduces the problem?
rm-hull commented
I think it may be something to do with the state and interaction of variables i, ii, rest_tijd, critical_tijd and old_tijd in the while loop, rather than anything specific with the display driver
paulvanderheijden90 commented
@rm-hull can you explain That
rm-hull commented
I think you need to refactor your code into smaller functions/methods to make it more readable.
There is a bug somewhere in your logic.