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Add comment on measuring temperature

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pangduckwai
2019-04-25 01:51:30 +08:00
parent ae15f458b6
commit 7c7bd31959
1 changed files with 16 additions and 19 deletions
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monitor.py
+16 -19
View File
@@ -35,7 +35,7 @@ height = 64
padding = -2
top = padding
bottom = height-padding
xpos = 2
xpos = 0
# init GPIO
GPIO.setmode(GPIO.BCM)
@@ -62,18 +62,19 @@ start = time.time()
def draw_process(channel):
with canvas(device) as draw:
DTTM = subprocess.check_output("date +\"%Y-%m-%d %H:%M:%S\"", shell = True)
ADDR = subprocess.check_output("hostname -I | cut -d\' \' -f1", shell = True )
ADDR = subprocess.check_output("hostname -I | awk '{printf \"IP : %s\", $1}'", shell = True )
CPUL = subprocess.check_output("top -bn1 | awk 'NR==3{printf \"CPU : %.1f%% idle\", $8}'", shell = True )
MEMU = subprocess.check_output("free -m | awk 'NR==2{printf \"Mem : %s/%sMB %.2f%%\", $3,$2,$3*100/$2 }'", shell = True )
DISK = subprocess.check_output("df -h | awk '$NF==\"/\"{printf \"Disk: %d/%dGB %s\", $3,$2,$5}'", shell = True )
TEMP = subprocess.check_output("/opt/vc/bin/vcgencmd measure_temp | awk '{gsub(/temp=/,\" \"); print}'", shell = True )
TEMP = subprocess.check_output("/opt/vc/bin/vcgencmd measure_temp | awk '{gsub(/temp=/,\"\"); printf \"Temp: %s\", $0}'", shell = True )
# or use this for temperature? cat /sys/class/thermal/thermal_zone0/temp
draw.text((xpos, top), str(DTTM), font=font, fill=255)
draw.text((xpos, top+12), "IP : " + str(ADDR), font=font, fill=255)
draw.text((xpos, top+12), str(ADDR), font=font, fill=255)
draw.text((xpos, top+20), str(CPUL), font=font, fill=255)
draw.text((xpos, top+28), str(MEMU), font=font, fill=255)
draw.text((xpos, top+36), str(DISK), font=font, fill=255)
draw.text((xpos, top+45), "Temp:" + str(TEMP), font=font, fill=255)
draw.text((xpos, top+28), str(MEMU), font=font, fill=255)
draw.text((xpos, top+36), str(DISK), font=font, fill=255)
draw.text((xpos, top+45), str(TEMP), font=font, fill=255)
def main_process(channel):
global serial
@@ -81,9 +82,9 @@ def main_process(channel):
global draw
global state
global start
if state == 0: # Display is off
if channel > 0:
state = 1
if state <= 0: # Display is off
if channel > 0: # A button is pressed, turn on display
state = channel
start = time.time()
# Initialize the display...
@@ -95,16 +96,12 @@ def main_process(channel):
draw_process(channel)
else:
pass
elif state == 1:
if (channel > 0) or ((stamp - start) > SCREEN_SAVER): # Signal to turn off display
else: # Display is on
if (channel > 0) or ((stamp - start) > SCREEN_SAVER): # A button is pressed or timed out, turn off display
GPIO.output(RST_PIN,GPIO.LOW)
state = 0
else:
pass
draw_process(channel)
else:
pass
else: # state > 0 && channel == 0 && not-yet-timeout, refresh screen
draw_process(state)
GPIO.add_event_detect(JS_P_PIN, GPIO.RISING, callback=main_process, bouncetime=200)
GPIO.add_event_detect(BTN1_PIN, GPIO.RISING, callback=main_process, bouncetime=200)
@@ -112,7 +109,7 @@ GPIO.add_event_detect(BTN2_PIN, GPIO.RISING, callback=main_process, bouncetime=2
GPIO.add_event_detect(BTN3_PIN, GPIO.RISING, callback=main_process, bouncetime=200)
try:
main_process(1)
main_process(JS_P_PIN)
while True:
stamp = time.time()
main_process(0)