SunFounder PiSloth - Page 97

SunFounder pisloth
(continued from previous page)
ch = sys.stdin.read(1)
finally:
termios.tcsetattr(fd, termios.TCSADRAIN, old_settings)
return ch
manual = '''
Press keys on keyboard to control PiSloth!
w: Forward
a: Turn left
s: Backward
d: Turn right
1: Sound effect: talk1
2: Sound effect: talk2
3: Sound effect: talk3
4: Sound effect: depress2
q: Say: "Oh hello there"
e: Say: "bye"
esc: Quit
'''
def main():
print(manual)
while True:
key = readchar().lower()
# print(key)
if key == "w":
sloth.do_action('forward', 1, 90)
elif key == "a":
sloth.do_action('turn left', 1, 90)
elif key == "s":
sloth.do_action('backward', 1, 90)
elif key == "d":
sloth.do_action('turn right', 1, 90)
elif key == "1":
music.sound_effect_play('./sounds/talk1.wav')
elif key == "2":
music.sound_effect_play('./sounds/talk2.wav')
elif key == "3":
music.sound_effect_play('./sounds/talk3.wav')
elif key == "4":
music.sound_effect_play('./sounds/depress.wav')
elif key == "q":
tts.say("Oh hello there")
elif key == "e":
tts.say("bye")
elif key == chr(27): # 27 for ESC
break
time.sleep(0.05)
print("\nQuit")
if __name__ == "__main__":
main()
How it works?
This function refers to the standard input stream and returns the first character of the data stream read.
4.8. Remote Control 93