We've looked at various forms of displays that you can attach to your BeagleBone, but those are only useful when you're looking at it. If your BeagleBone is not accessible, for instance, it's monitoring something at your home while you're out, you might still need a way for it to send you information. One simple way to achieve this is to use Simple Mail Transfer Protocol (SMTP) to send e-mails from your BeagleBone. Save this code to a new file called email_sender.py by filling in your account's SMTP details:

import smtplib
from email.mime.text import MIMEText

SMTP_host = 'smtp.gmail.com'
SMTP_email = '[email protected]'
SMTP_pass = 'password'

def send_email(to, subject, body):
  msg = MIMEText(body)
  msg['Subject'] = subject
  msg['From'] = SMTP_email
  msg['To'] = to
  server = smtplib.SMTP_SSL(SMTP_host)
  server.login(SMTP_email, SMTP_pass)
  server.sendmail(SMTP_email, to, msg.as_string())