reflow/serialmon.py

#!/usr/bin/python
# -*- coding: utf-8 -*-

import serial, struct, time

ser = serial.Serial('/dev/ttyUSB0', 9600, timeout=2)


buf = ""
alles = []

#def parse():
  #buffer = list()
  #while 1:
    #try:
      #i = ser.read(1)
      #if ord(i) == 255:
    #except Exception, e:
      #print e
    #else:

def recv_config():
  ser.write(chr(255))
  ser.flush()
  read(30)
  ser.flushInput()
  data = struct.unpack("hhhhhhhhhhhhhhh", buf)
  print
  print "Profile:"
  print "ts_min:", data[0]
  print "ts_max:", data[1]
  print "tl:", data[2]
  print "tp:", data[3]
  print "time_max:", data[4]
  print "ramp_up_min:", data[5]
  print "ramp_up_max:", data[6]
  print "ramp_down_min:", data[7]
  print "ramp_down_max:", data[8]

  print "ts_duration_min:", data[9]
  print "ts_duration_max:", data[10]
  print "tl_duration_min:", data[11]
  print "tl_duration_max:", data[12]
  print "tp_duration_min:", data[13]
  print "tp_duration_max:", data[14]
  print


def recv_state():
  ser.write(chr(254))
  ser.flush()
  read(11)
  data = struct.unpack("hhhhhb", buf)
  print "time: %ds, temperature: %d°C, last temperature: %d°C, state: %d, error condition: %d, heating: %d" % data


def send_config():
  ser.write(chr(253))
  ser.write(buf)
  ser.flushInput()


def read(l):
  global buf
  global alles
  buf = ""
  while len(buf) < l:
    try:
      buf += ser.read(l)
      alles.append(buf)
    except Exception, e:
      print e
  ser.flushInput()


time.sleep(2)
recv_config()
while 1:
  recv_state()
  time.sleep(1)