我需要一些帮助。我正在尝试将变量发送到T0
。我已经尝试过,但是无法发送变量值。请帮忙。
代码
import serial
import time
import struct
from requests import get
ip = get('https://api.ipify.org').text
ser = serial.Serial("/dev/ttyAMA0")
time.sleep(1)
k=struct.pack('B', 0xff )
while True:
ser.write(b't0.txt=ip')
ser.write(k)
ser.write(k)
ser.write(k)
答案 0 :(得分:0)
您必须将字符串用引号("
括起来,以便Nextion读取字符串。
不是Python专家,但这应该可以给您一个提示:
将ser.write(b't0.txt=ip')
更改为ser.write(b't0.txt="' + ip + '"')
。
答案 1 :(得分:0)
这对我有用。
port=serial.Serial(port='/dev/ttyAMA0',baudrate=9600, timeout=1.0)
eof = "\xff\xff\xff"
tn = str(datetime.now().time())
alt = 'page0.T0.txt="'+tn+'"'+eof
dimCmd = "dim=0"
undimCmd = "dim=100"
cmd1 = "https://api.thingspeak.com/apps/thinghttp/send_request?api_key=YOUR_API_KEY" #IF USING THINGSPEAK
#get temp Sub - USING THINGSPEAK GET LOCAL WEATHER
def GetTemp():
global temp
response = urllib.urlopen(cmd1)
temp = response.read()
temp = temp[:-2] #gets all characters in temp except the last 2
while True:
port.write(alt) #writes time to T0 textbox on screen
port.write(undimCmd + eof) #set screen brightness to 100%
port.write("page 1")#set screen to page 1 for multiple page setups