def show_text(self, text, duration=2, blink=True):
""" show text for the given time """
# should be called with _exec_with_lock
self._settings.log.msg("DisplayController: showing text: %s" % text)
if self._brightness == 0:
time.sleep(duration)
return
display.clear()
# scroll long text
if len(text) > 4:
steps = len(text) - 3
sleep_time = float(duration) / steps
for i in range(steps):
display.print_str(text[:4], False)
display.show()
time.sleep(sleep_time)
text = text[1:]
else:
display.print_str(text, False)
if blink:
display.set_blink(display.HT16K33_BLINK_2HZ)
display.show()
time.sleep(duration)
if blink:
display.set_blink(display.HT16K33_BLINK_OFF)
def _set_blink(self, state):
""" set blink state """
# should be called with _exec_with_lock
if state:
display.set_blink(display.HT16K33_BLINK_1HZ)
else:
display.set_blink(display.HT16K33_BLINK_OFF)
def __display_a(self):
if self.display_id != self.__display_a:
self.display_id = self.__display_a
flp.print_str("LOGC")
flp.show()
time.sleep(2)
flp.print_float(self.temp_a, decimal_digits=1)
flp.set_blink(flp.HT16K33_BLINK_2HZ)
flp.show()
def __display_f(self):
if self.display_id != self.__display_f:
flp.set_blink(flp.HT16K33_BLINK_OFF)
self.display_id = self.__display_f
#flp.scroll_print("FREEZER")
flp.print_str("FRZR")
flp.show()
time.sleep(2)
flp.print_float(self.temp_f, decimal_digits=1)
flp.show()
flp.glow()
#!/usr/bin/env python
import time
import fourletterphat
print("""
Four Letter pHAT: blink.py
Demonstrate the display blinking at
the three available speeds.
Press Ctrl+C to exit.
""")
fourletterphat.clear()
fourletterphat.print_str("BLNK")
fourletterphat.show()
for blink_speed in [fourletterphat.HT16K33_BLINK_HALFHZ, fourletterphat.HT16K33_BLINK_1HZ, fourletterphat.HT16K33_BLINK_2HZ]:
fourletterphat.set_blink(blink_speed)
time.sleep(4)
fourletterphat.set_blink(fourletterphat.HT16K33_BLINK_OFF)
fourletterphat.print_str("BOOM")
fourletterphat.show()
time.sleep(1)
#!/usr/bin/env python
import time
import fourletterphat as flp
print("""
Four Letter pHAT: blink.py
Demonstrate the display blinking at
the three available speeds.
Press Ctrl+C to exit.
""")
flp.clear()
flp.print_str("BLNK")
flp.show()
# Display each blinkt speed for 4 seconds
for blink_speed in [
flp.HT16K33_BLINK_HALFHZ, flp.HT16K33_BLINK_1HZ, flp.HT16K33_BLINK_2HZ
]:
flp.set_blink(blink_speed)
time.sleep(4)
flp.set_blink(flp.HT16K33_BLINK_OFF)
flp.print_str("BOOM")
flp.show()
time.sleep(1)(10)