我有一个Lua脚本通过SMTP向我发送电子邮件。上传到NodeMCU并说dofile("sendemail.lua")
时一切正常。使用while循环时NodeMCU超时
-- sendmail.lua
-- The email and password from the account you want to send emails from
MY_EMAIL = "REDACTED"
EMAIL_PASSWORD = "REDACTED"
-- The SMTP server and port of your email provider.
-- If you don't know it google [my email provider] SMTP settings
SMTP_SERVER = "isp.smtp.server"
SMTP_PORT = 25
-- The account you want to send email to
mail_to = "REDACTED"
-- Your access point's SSID and password
SSID = "REDACTED"
SSID_PASSWORD = "REDACTED"
-- configure ESP as a station
wifi.setmode(wifi.STATION)
wifi.sta.config(SSID,SSID_PASSWORD)
wifi.sta.autoconnect(1)
email_subject = ""
email_body = ""
count = 0
local smtp_socket = nil -- will be used as socket to email server
-- The display() function will be used to print the SMTP server's response
function display(sck,response)
print(response)
end
-- The do_next() function is used to send the SMTP commands to the SMTP server in the required sequence.
-- I was going to use socket callbacks but the code would not run callbacks after the first 3.
function do_next()
if(count == 0)then
count = count+1
IP_ADDRESS = wifi.sta.getip()
smtp_socket:send("HELO "..IP_ADDRESS.."\r\n")
elseif(count==1) then
count = count+1
smtp_socket:send("AUTH LOGIN\r\n")
elseif(count == 2) then
count = count + 1
smtp_socket:send("REDACTED".."\r\n")
elseif(count == 3) then
count = count + 1
smtp_socket:send("REDACTED".."\r\n")
elseif(count==4) then
count = count+1
smtp_socket:send("MAIL FROM:<" .. MY_EMAIL .. ">\r\n")
elseif(count==5) then
count = count+1
smtp_socket:send("RCPT TO:<" .. mail_to ..">\r\n")
elseif(count==6) then
count = count+1
smtp_socket:send("DATA\r\n")
elseif(count==7) then
count = count+1
local message = string.gsub(
"From: \"".. MY_EMAIL .."\"<"..MY_EMAIL..">\r\n" ..
"To: \"".. mail_to .. "\"<".. mail_to..">\r\n"..
"Subject: ".. email_subject .. "\r\n\r\n" ..
email_body,"\r\n.\r\n","")
smtp_socket:send(message.."\r\n.\r\n")
elseif(count==8) then
count = count+1
tmr.stop(0)
smtp_socket:send("QUIT\r\n")
print("msg sent")
else
smtp_socket:close()
end
print(count)
end
-- The connectted() function is executed when the SMTP socket is connected to the SMTP server.
-- This function will create a timer to call the do_next function which will send the SMTP commands
-- in sequence, one by one, every 5000 seconds.
-- You can change the time to be smaller if that works for you, I used 5000ms just because.
function connected(sck)
tmr.alarm(0,5000,1,do_next)
end
-- @name send_email
-- @description Will initiated a socket connection to the SMTP server and trigger the connected() function
-- @param subject The email's subject
-- @param body The email's body
function send_email(subject,body)
count = 0
email_subject = subject
email_body = body
smtp_socket = net.createConnection(net.TCP,0)
smtp_socket:on("connection",connected)
smtp_socket:on("receive",display)
smtp_socket:connect(SMTP_PORT, SMTP_SERVER)
end
-- Send an email
send_email("ESP8266", "[[Hi, How are your IoT projects coming along? Best Wishes,ESP8266]]")
不过,我想用一个循环来监控模拟输入值,而只在检测到特定的模拟输入值时,发送电子邮件。因此,我加入这个代码在脚本的结尾,sendemail()
函数定义后,立即功能sendmail('subject', 'body')
被称为
vp = 0
gpio.mode(vp, gpio.INPUT)
while true do
local v = adc.read(vp)
if v < 840 or v > 870 then
print(v)
break
end
tmr.wdclr()
end
sendmail('subject', 'body')
while循环完美的作品,从模拟输入引脚无限期等待之前。一旦找到该输入,它就会正确中断并调用sendmail函数。但是,一旦调用该函数,NodeMCU最终会重置。有时候,它会尽可能成功地向服务器验证SMTP凭证,有时在关闭之前甚至不会创建HELO。什么可能造成这种情况?为什么sendmail.lua
脚本能够正常工作,然后突然决定在添加这个看起来完全正常工作的小循环时不工作?
所以这仍然会重置约10秒进入计时器闹钟。任何想法为什么可能会发生? – user1173922
实际上,当我尝试在NodeMCU上运行脚本时,这似乎是随机发生的。个别部分似乎工作正常,所以我想我要么有一些不好的硬件,要么固件搞砸了。 – user1173922