우선 요게 내가 만지고 있는 코드인데,
import RPi.GPIO as GPIO
from time import sleep
def delay(ms):
sleep(ms/1000.)
class LCD:
def __init__(self):
GPIO.setwarnings(False)
GPIO.setmode(GPIO.BCM)
D0 = 17
D1 = 18
D2 = 27
D3 = 22
D4 = 23
D5 = 24
D6 = 25
D7 = 4
self.RS = 7 #Register Select
self.E = 8 #Enable
self.RW = 11 #Read/Write
#All outputs
allPins = (D0,D1,D2,D3,D4,D5,D6,D7,self.RS,self.E, self.RW)
for pin in allPins:
GPIO.setup(pin, GPIO.OUT)
self.dataPins = (D0,D1,D2,D3,D4,D5,D6,D7)
self.position = 0
self.row = 0
self.column = -1
def on(self, pin):
GPIO.output(pin, 1)
def off(self, pin):
GPIO.output(pin, 0)
def mask(self, num, bit):
result = num & (1 << bit)
return result!=0
def port(self, num):
bits = range(8)
for bit in bits:
if self.mask(num, bit):
self.on(self.dataPins[bit])
else:
self.off(self.dataPins[bit])
def strobe(self):
self.on(self.E)
delay(1)
self.off(self.E)
delay(1)
def moveLine(self, line):
if line < 0:
raise("Negative move value")
elif line > 3:
raise("Line value off limit")
self.column = 0
if line == 0:
self.row = 0
self.sendMove(0)
elif line == 1:
self.row = 1
self.sendMove(40)
elif line == 2:
self.row = 2
self.sendMove(20)
elif line == 3:
self.row = 3
self.sendMove(84)
def writeChar(self, c):
self.column+=1
if self.column>=20:
if self.row == 0:
self.moveLine(1)
elif self.row == 1:
self.moveLine(2)
elif self.row == 2:
self.moveLine(3)
elif self.row == 3:
self.moveLine(0)
self.sendData(ord(c))
#print((c, self.row, self.column))
def writeText(self, text):
for c in text:
self.writeChar(c)
def clear(self):
self.sendCommand(0x01)
def init(self, D=True, C=False, B=False):
command = 0x08 #Display on/off control
if D:
command|=0x04
if C:
command|=0x02
if B:
command|=0x01
self.sendCommand(command)
self.sendCommand(0x3F) #Set to 4 lines display
def sendData(self, data):
self.on(self.RS)
self.port(data)
self.strobe()
def sendCommand(self, command):
self.port(command)
self.strobe()
def sendMove(self, position):
self.sendCommand(0x80|position)
def CommandLineUse():
import argparse
lcd = LCD()
parser = argparse.ArgumentParser(description="Display text to 4 lines character LCD")
parser.add_argument("-c", "--cursor", action="store_true", help="display cursor")
parser.add_argument("-b", "--blink", action="store_true", help="blink cursor")
parser.add_argument("--demo", action="store_true", help="display demo text")
parser.add_argument("--fill", action="store_true", help="fill screen with characters")
parser.add_argument("text", nargs='?', help="text to display")
args = parser.parse_args()
#print(args)
lcd = LCD()
lcd.init(C=args.cursor, B=args.blink)
lcd.clear()
lcd.writeText(" hello ")
lcd.writeText(" un message ")
lcd.writeText(" sur ")
lcd.writeText(" quatre lignes :) ")
if args.fill:
lcd.writeText("ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789ABCDEFGH")
elif args.text:
#print args.text
lines = args.text.replace(r"\\\"",r"\\").split(r'\n')
#print(lines)
for line in lines:
lcd.writeText(line)
else:
parser.print_help()
def PipeUse():
lcd = LCD()
lcd.init(C=False, B=False)
lcd.clear()
for line in stdin:
lcd.writeText(line[:-1])
lcd = LCD()
lcd.init()
lcd.clear()
lcd.writeText(" hello ")
lcd.writeText(" un message ")
lcd.writeText(" sur ")
lcd.writeText(" quatre lignes :) ")
는 사실 누가 올려 놓은거 테스트해보는중임
lcd.writeText 괄호 안에 적힌 텍스트는 잘뜨는데 api에서 받아온 데이터를 뜨게하려고 하니까 명령어가 그대로 출력되버리더라...
import requests
import json
response = requests.get('http://api.weatherapi.com/v1/current.json?key=비공개&q=seoul&aqi=yes')
json0bj = json.loads(response.text)
print(json0bj['current'][temp_c']. json0bj['current']['condition']['text'])
이 코드가 Weather Api라는 사이트에서 데이터를 받아오는 코드인데
출력해보면 "10.0 partly cloudy"
요런느낌으로 설정해놓은 지역에 기상 정보를 출력할수 있음
그래서 lcd.writeText 괄호안에 출력에 관한거 다 집어 넣어보고 있는데, 당연하겠지만 LCD에 데이터는 커녕 내가 넣은 명령어가 출력되더랔ㅋㅋㅋ 막 시작한 수준이라 응애라서 감이 안오는데 혹시 좋은 방법이 있어?
