# DEVICE (HOST) – PSEUDO-CODE
httpd_init(8081);
while (1) {
 # Manage a request
 if ($client.request) {
   # Parse and validate, if invalid client.send('ERR');
   # If 'set something': set variables; client.send('OK');
   # Elsif a ‘request something': return client(short_string);
   # clear/cleanup//connection done
 }
 # Main program – do things
 …
 # Be nice
 my_sleep(250);
}