375 lines
12 KiB
Python
375 lines
12 KiB
Python
# ESP8266天气站主程序
|
||
# 首先尝试连接已保存的WiFi，失败则启动CaptivePortal进行配置
|
||
|
||
import gc
|
||
import json
|
||
import sys
|
||
import time
|
||
|
||
import machine
|
||
import uasyncio
|
||
from config import config
|
||
from display import display # 导入液晶屏管理模块
|
||
from wifi_manager import wifi_manager
|
||
|
||
# 全局变量存储最新的天气数据
|
||
latest_weather = None
|
||
|
||
|
||
def parse_url_params(url):
|
||
# 解析URL中的查询参数，返回参数字典
|
||
params = {}
|
||
|
||
if "?" in url:
|
||
query_string = url.split("?")[1]
|
||
param_pairs = query_string.split("&")
|
||
|
||
for pair in param_pairs:
|
||
if "=" in pair:
|
||
key, value = pair.split("=", 1)
|
||
params[key] = value
|
||
|
||
return params
|
||
|
||
|
||
# ntp时钟同步
|
||
def sync_ntp_time():
|
||
import ntptime
|
||
|
||
ntptime.host = config.get("ntphost", "ntp1.aliyun.com")
|
||
t = ntptime.time() + 3600 * 8
|
||
|
||
rtc = machine.RTC()
|
||
tm = time.gmtime(t)
|
||
rtc.datetime((tm[0], tm[1], tm[2], tm[6], tm[3], tm[4], tm[5], 0))
|
||
print(f"时间同步：{rtc.datetime()}")
|
||
|
||
|
||
# 简化的天气数据获取函数
|
||
def get_weather_data(city=None, force=False):
|
||
"""获取天气数据，返回JSON格式数据
|
||
|
||
Args:
|
||
city: 城市名称，如果为None则从配置文件获取
|
||
force: 是否强制刷新，True则忽略缓存重新获取
|
||
"""
|
||
global latest_weather
|
||
|
||
# 检查是否需要强制更新或者缓存为空
|
||
if not force and latest_weather is not None:
|
||
# 使用缓存数据
|
||
print("使用缓存的天气数据")
|
||
return latest_weather
|
||
|
||
try:
|
||
import urequests
|
||
|
||
# 从配置文件获取城市，如果没有提供则使用配置中的值
|
||
if city is None:
|
||
city = config.get("city", "北京")
|
||
|
||
# 从配置获取API基础URL，默认使用官方API
|
||
api_base = config.get("weather_api_url", "https://iot.foresh.com/api/weather")
|
||
url = f"{api_base}?city={city}"
|
||
print(f"正在获取{city}天气数据...")
|
||
|
||
# 发送GET请求
|
||
response = urequests.get(url)
|
||
|
||
# 检查响应状态
|
||
if response.status_code == 200:
|
||
# 解析JSON数据
|
||
wdata = response.json()
|
||
response.close() # 关闭连接释放内存
|
||
|
||
# 提取关键信息，减少内存占用
|
||
weather_report = {
|
||
"t": wdata.get("temperature", "N/A"),
|
||
"rh": wdata.get("humidity", "N/A"),
|
||
"pm25": wdata.get("pm25", "N/A"),
|
||
"weather": wdata.get("weather", "N/A"),
|
||
"t_min": wdata.get("t_min", "N/A"),
|
||
"t_max": wdata.get("t_max", "N/A"),
|
||
"city": wdata.get("city", "N/A"),
|
||
"aqi": wdata.get("aqi", "N/A"),
|
||
"date": wdata.get("date", "N/A"),
|
||
"advice": wdata.get("advice", "N/A"),
|
||
"image": wdata.get("image", "N/A"),
|
||
}
|
||
|
||
print("天气数据获取成功")
|
||
# 更新缓存
|
||
latest_weather = weather_report
|
||
|
||
return weather_report
|
||
else:
|
||
print(f"获取天气数据失败，状态码: {response.status_code}")
|
||
response.close()
|
||
return None
|
||
|
||
except Exception as e:
|
||
print(f"获取天气数据出错: {e}")
|
||
return None
|
||
|
||
|
||
# 定时调度任务（时间不敏感，但考虑错开以节约内存）
|
||
async def sysinfo_update_task():
|
||
"""定时后台任务"""
|
||
weather_ts = 2 # 启动2s后更新
|
||
ntptime_ts = 1 # 启动1s后更新
|
||
|
||
# 初始化时间戳
|
||
start_ticks = time.ticks_ms()
|
||
last_weather = last_ntptime = start_ticks
|
||
|
||
while True:
|
||
task_id = None # task执行失败后，要快速重试
|
||
try:
|
||
current_ticks = time.ticks_ms()
|
||
# 计算时间差，处理溢出
|
||
weather_diff = time.ticks_diff(current_ticks, last_weather)
|
||
ntp_diff = time.ticks_diff(current_ticks, last_ntptime)
|
||
|
||
if weather_diff >= weather_ts * 1000:
|
||
# 更新天气数据
|
||
gc.collect()
|
||
task_id = "weather"
|
||
get_weather_data(force=True)
|
||
last_weather = current_ticks
|
||
weather_ts = int(config.get("weather_ts", 600)) # 10min
|
||
elif ntp_diff >= ntptime_ts * 1000:
|
||
# 更新NTP时间
|
||
gc.collect()
|
||
task_id = "ntp"
|
||
sync_ntp_time()
|
||
last_ntptime = current_ticks
|
||
ntptime_ts = int(config.get("ntptime_ts", 3600)) + 13 # 1hour
|
||
except Exception as e:
|
||
print(f"定时任务更新错误: {e}")
|
||
if task_id == "ntp":
|
||
ntptime_ts = 10
|
||
elif task_id == "weather":
|
||
weather_ts = 60
|
||
|
||
# 等待x秒再检查（1~30）
|
||
_x = min(30, 1 + min(weather_ts, ntptime_ts) // 10)
|
||
await uasyncio.sleep(_x)
|
||
|
||
|
||
# 精简的动画显示任务
|
||
async def animation_task():
|
||
"""显示JPG动画的后台任务"""
|
||
# 检查液晶屏是否已初始化
|
||
if not display.is_ready():
|
||
print("液晶屏未初始化，跳过动画任务")
|
||
return
|
||
|
||
try:
|
||
# 动画参数
|
||
frame_count = 20
|
||
frame_delay = 10 # 帧延迟(毫秒)
|
||
|
||
await uasyncio.sleep_ms(2 * 1000)
|
||
print(f"开始JPG动画，帧延迟: {frame_delay}ms")
|
||
|
||
frame = 0
|
||
while True:
|
||
try:
|
||
# 计算当前帧号(1-20)
|
||
current_frame = (frame % frame_count) + 1
|
||
filename = f"/rom/www/images/T{current_frame}.jpg"
|
||
|
||
# 显示当前帧，右下角
|
||
display.show_jpg(filename, 160, 160)
|
||
|
||
# 控制帧率
|
||
await uasyncio.sleep_ms(frame_delay)
|
||
|
||
# 每轮清理一次内存
|
||
gc.collect()
|
||
|
||
frame += 1
|
||
|
||
except Exception as e:
|
||
print(f"动画帧错误: {e}")
|
||
# 出错后等待1秒再继续
|
||
await uasyncio.sleep_ms(1000)
|
||
|
||
except Exception as e:
|
||
print(f"动画任务初始化失败: {e}")
|
||
|
||
|
||
def start():
|
||
# 初始化液晶屏
|
||
display.init_display(config.get("bl_mode") != "gpio")
|
||
display.brightness(int(config.get("brightness", 10)))
|
||
display.show_jpg("/rom/www/images/T1.jpg", 80, 80)
|
||
gc.collect()
|
||
|
||
if not wifi_manager.connect():
|
||
print("Failed to connect to WiFi, starting CaptivePortal for configuration")
|
||
from captive_portal import CaptivePortal
|
||
|
||
portal = CaptivePortal()
|
||
return portal.start()
|
||
gc.collect()
|
||
|
||
# init web server
|
||
from rom.nanoweb import Nanoweb
|
||
|
||
naw = Nanoweb()
|
||
# website top directory
|
||
naw.STATIC_DIR = "/rom/www"
|
||
|
||
# /ping: pong
|
||
@naw.route("/ping")
|
||
async def ping(request):
|
||
await request.write("HTTP/1.1 200 OK\r\n")
|
||
await request.write("Content-Type: text\r\n\r\n")
|
||
await request.write("pong")
|
||
|
||
# /status
|
||
@naw.route("/status")
|
||
async def ping(request):
|
||
await request.write("HTTP/1.1 200 OK\r\n")
|
||
await request.write("Content-Type: application/json\r\n\r\n")
|
||
await request.write(
|
||
json.dumps(
|
||
{
|
||
"time": "{}-{:02d}-{:02d} {:02d}:{:02d}:{:02d}".format(
|
||
*time.localtime()
|
||
),
|
||
"uptime": str(f"{time.ticks_ms() // 1000} sec"),
|
||
"memory": str(f"{gc.mem_free() // 1000} KB"),
|
||
"uuid": str(machine.unique_id().hex()),
|
||
"platform": str(sys.platform),
|
||
"version": str(sys.version),
|
||
}
|
||
)
|
||
)
|
||
|
||
# /weather: 返回天气数据
|
||
@naw.route("/weather*")
|
||
async def weather_status(request):
|
||
await request.write("HTTP/1.1 200 OK\r\n")
|
||
await request.write("Content-Type: application/json\r\n\r\n")
|
||
|
||
# 解析URL参数
|
||
params = parse_url_params(request.url)
|
||
# 获取天气数据
|
||
weather = get_weather_data(
|
||
city=params.get("city"), force=params.get("force", False)
|
||
)
|
||
if weather:
|
||
await request.write(json.dumps(weather))
|
||
else:
|
||
await request.write(json.dumps({"error": "Failed to get weather data"}))
|
||
|
||
# /lcd: 获取LCD状态
|
||
@naw.route("/lcd")
|
||
async def lcd_status(request):
|
||
await request.write("HTTP/1.1 200 OK\r\n")
|
||
await request.write("Content-Type: application/json\r\n\r\n")
|
||
|
||
# 返回LCD状态
|
||
lcd_status = {
|
||
"ready": display.is_ready(),
|
||
"brightness": display.brightness(),
|
||
"ui_type": config.get("ui_type", "default"),
|
||
}
|
||
await request.write(json.dumps(lcd_status))
|
||
|
||
# /lcd/set: 设置LCD状态
|
||
@naw.route("/lcd/set")
|
||
async def lcd_set(request):
|
||
ack = {"status": "success"}
|
||
try:
|
||
if request.method != "POST":
|
||
raise Exception("invalid request")
|
||
content_length = int(request.headers["Content-Length"])
|
||
post_data = (await request.read(content_length)).decode()
|
||
|
||
for k, v in json.loads(post_data).items():
|
||
if k == "brightness":
|
||
display.brightness(int(v))
|
||
except Exception as e:
|
||
ack["status"] = "error"
|
||
ack["message"] = str(e)
|
||
finally:
|
||
await request.write(
|
||
"HTTP/1.1 200 OK\r\nContent-Type: application/json\r\n\r\n"
|
||
)
|
||
await request.write(json.dumps(ack))
|
||
|
||
# /exec: 执行命令并返回
|
||
# {"cmd":"import network;R=network.WLAN().config(\"mac\").hex()", "token":"xxx"}
|
||
@naw.route("/exec")
|
||
async def eval_cmd(request):
|
||
ack = {"status": "success"}
|
||
try:
|
||
if request.method != "POST":
|
||
raise Exception("invalid request")
|
||
content_length = int(request.headers["Content-Length"])
|
||
post_data = (await request.read(content_length)).decode()
|
||
|
||
cmd = json.loads(post_data).get("cmd")
|
||
token = json.loads(post_data).get("token")
|
||
if cmd and token == machine.unique_id().hex():
|
||
_NS = {}
|
||
exec(cmd, _NS)
|
||
ack["result"] = str(_NS.get("R"))
|
||
except Exception as e:
|
||
ack["status"] = "error"
|
||
ack["message"] = str(e)
|
||
finally:
|
||
await request.write(
|
||
"HTTP/1.1 200 OK\r\nContent-Type: application/json\r\n\r\n"
|
||
)
|
||
await request.write(json.dumps(ack))
|
||
|
||
# /config: 获取当前配置
|
||
@naw.route("/config")
|
||
async def config_get(request):
|
||
await request.write("HTTP/1.1 200 OK\r\n")
|
||
await request.write("Content-Type: application/json\r\n\r\n")
|
||
# 返回所有配置项
|
||
await request.write(json.dumps(config.config_data))
|
||
|
||
# /config/set: 更新配置
|
||
# curl -H "Content-Type: application/json" -X POST -d '{"city":"xxx","who":"ami"}' 'http://<url>/config/set'
|
||
@naw.route("/config/set")
|
||
async def config_update(request):
|
||
ack = {"status": "success"}
|
||
try:
|
||
if request.method != "POST":
|
||
raise Exception("invalid request")
|
||
content_length = int(request.headers["Content-Length"])
|
||
post_data = (await request.read(content_length)).decode()
|
||
|
||
for k, v in json.loads(post_data).items():
|
||
config.set(k, v)
|
||
config.write()
|
||
except Exception as e:
|
||
ack["status"] = "error"
|
||
ack["message"] = str(e)
|
||
finally:
|
||
await request.write(
|
||
"HTTP/1.1 200 OK\r\nContent-Type: application/json\r\n\r\n"
|
||
)
|
||
await request.write(json.dumps(ack))
|
||
|
||
# create task
|
||
loop = uasyncio.get_event_loop()
|
||
loop.create_task(naw.run())
|
||
|
||
# 启动定时更新任务
|
||
loop.create_task(sysinfo_update_task())
|
||
|
||
# 启动动画显示任务
|
||
loop.create_task(animation_task())
|
||
|
||
# run!
|
||
gc.collect()
|
||
print(f"App Memory Free: {gc.mem_free()}")
|
||
loop.run_forever()
|