블루투스 자동차(파이썬, 앱인벤터)

1. BLUETOOTH CAR
http://injaram.com
fornymph@gmail.com

2. (http://injaram.com)
L293D (pin connection)

3. (http://injaram.com)
L293D 회로도
35(19) 37(26)
38(20) 40(21)

4. (http://injaram.com)
bt_car (코드 1/2)
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from bluetooth import *
import RPi.GPIO as GPIO
import time
GPIO.setmode(GPIO.BOARD)
r_f = 35
r_b = 37
l_f = 38
l_b = 40
GPIO.setup(r_f, GPIO.OUT)
GPIO.setup(r_b, GPIO.OUT)
GPIO.setup(l_f, GPIO.OUT)
GPIO.setup(l_b, GPIO.OUT)
GPIO.output(r_f, GPIO.LOW)
GPIO.output(r_b, GPIO.LOW)
GPIO.output(l_f, GPIO.LOW)
GPIO.output(l_b, GPIO.LOW)
server_sock = BluetoothSocket(RFCOMM)
server_sock.bind((“”, PORT_ANY))
server_sock.listen(1)
print “Waiting...”
client_sock, address = server_sock.accept()
print “Accepted connection from ”, address
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try:
while True:
data = client_sock.recv(1024)
print “received [%s]” % data
if data == “f”:
GPIO.output(r_f, GPIO.HIGH)
GPIO.output(r_b, GPIO.LOW)
GPIO.output(l_f, GPIO.HIGH)
GPIO.output(l_b, GPIO.LOW)
elif data == “r”:
GPIO.output(r_f, GPIO.HIGH)
GPIO.output(r_b, GPIO.LOW)
GPIO.output(l_f, GPIO.LOW)
GPIO.output(l_b, GPIO.LOW)
elif data == “l”:
GPIO.output(r_f, GPIO.LOW)
GPIO.output(r_b, GPIO.LOW)
GPIO.output(l_f, GPIO. HIGH)
GPIO.output(l_b, GPIO.LOW)
elif data == “b”:
GPIO.output(r_f, GPIO.LOW)
GPIO.output(r_b, GPIO.HIGH)
GPIO.output(l_f, GPIO.LOW)
GPIO.output(l_b, GPIO.HIGH)

5. (http://injaram.com)
bt_car (코드 2/2)
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elif data == “br”:
GPIO.output(r_f, GPIO.LOW)
GPIO.output(r_b, GPIO.HIGH)
GPIO.output(l_f, GPIO.LOW)
GPIO.output(l_b, GPIO.LOW)
elif data == “bl”:
GPIO.output(r_f, GPIO.LOW)
GPIO.output(r_b, GPIO.LOW)
GPIO.output(l_f, GPIO.LOW)
GPIO.output(l_b, GPIO.HIGH)
elif data == “s”:
GPIO.output(r_f, GPIO.LOW)
GPIO.output(r_b, GPIO.LOW)
GPIO.output(l_f, GPIO.LOW)
GPIO.output(l_b, GPIO.LOW)
else:
GPIO.output(r_f, GPIO.LOW)
GPIO.output(r_b, GPIO.LOW)
GPIO.output(l_f, GPIO.LOW)
GPIO.output(l_b, GPIO.LOW)
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time.sleep(0.5)
except KeyboardInterrupt:
GPIO.cleanup()
client_sock.close()
server_sock.close()

6. bt_car (앱인벤터, Designer)

7. bt_car (앱인벤터, Blocks 1/4)

8. bt_car (앱인벤터, Blocks 2/4)

9. bt_car (앱인벤터, Blocks 3/4)

10. bt_car (앱인벤터, Blocks 4/4)