def setup(self):
self.logger.info("--------------------------------------")
self.logger.info(" Balloon Mission Computer V4.01 ")
self.logger.info("--------------------------------------")
self.logger.debug("setup")
# setup
with open('data/config.json') as fin:
self.config = json.load(fin)
self.images_dir = self.config["directories"][
"images"] if "directories" in self.config and "images" in self.config[
"directories"] else "./images"
self.tmp_dir = self.config["directories"][
"tmp"] if "directories" in self.config and "tmp" in self.config[
"directories"] else "./tmp"
if not os.path.exists(self.tmp_dir):
os.makedirs(self.tmp_dir)
if not os.path.exists(self.images_dir):
os.makedirs(self.images_dir)
GPIO.setwarnings(False)
GPIO.setmode(GPIO.BCM) # Broadcom pin-numbering scheme
GPIO.setup(self.config['pins']['BUZZER'], GPIO.OUT)
GPIO.setup(self.config['pins']['LED1'], GPIO.OUT)
GPIO.setup(self.config['pins']['LED2'], GPIO.OUT)
GPIO.output(self.config['pins']['LED1'], GPIO.HIGH)
self.aprs = APRS(self.config['callsign'], self.config['ssid'],
"idoroseman.com")
self.modem = AFSK()
self.gps = Ublox()
self.gps.start()
self.radio = Dorji(self.config['pins'])
self.radio.init()
self.radio_q = queue.Queue()
self.radio_thread = threading.Thread(target=self.radio_worker)
self.radio_thread.start()
self.timers = Timers(self.config['timers'])
self.sensors = Sensors()
self.cam = Camera()
self.ssdv = SSDV(self.config['callsign'], self.config['ssid'])
self.sstv = SSTV()
self.webserver = WebServer()
self.radio_queue(self.config['frequencies']['APRS'],
'data/boatswain_whistle.wav')
for item in ["APRS", "APRS-META", "Imaging", 'Capture']:
self.timers.handle({item: self.config['timers'][item] > 0}, [])
self.timers.handle({"Buzzer": False}, [])
self.ledState = 1
self.imaging_counter = 1
self.state = "init"
self.min_alt = sys.maxsize
self.max_alt = 0
self.prev_alt = 0
self.send_bulltin()
GPIO.output(self.config['pins']['LED1'], GPIO.LOW)
class TestSSTV(unittest.TestCase):
def setUp(self):
self.s = SSTV(False, 48000, 16)
self.s.VIS_CODE = 0x00
self.s.SYNC = 7
def test_horizontal_sync(self):
horizontal_sync = self.s.horizontal_sync()
expected = (1200, self.s.SYNC)
actual = horizontal_sync.next()
self.assertEqual(expected, actual)
def test_gen_freq_bits(self):
gen_freq_bits = self.s.gen_freq_bits()
expected = [(1900, 300), (1200, 10), (1900, 300), (1200, 30),
(1300, 30), (1300, 30), (1300, 30), (1300, 30), (1300, 30),
(1300, 30), (1300, 30), (1300, 30), (1200, 30)]
actual = list(islice(gen_freq_bits, 0, 1000))
self.assertEqual(expected, actual)
# FIXME: Instead of using a test fixture, 'expected' should be synthesized?
def test_gen_values(self):
gen_values = self.s.gen_values()
expected = pickle.load(open("tests/assets/SSTV_gen_values.p"))
for e, g in izip(expected, gen_values):
self.assertAlmostEqual(e, g, delta=0.000000001)
def test_gen_samples(self):
gen_values = self.s.gen_samples()
# gen_samples uses random to avoid quantization noise
# by using additive noise, so there's always a chance
# of running the code two consecutive times on the same machine
# and having different results.
# https://en.wikipedia.org/wiki/Quantization_%28signal_processing%29
sstv.random = MagicMock(return_value=0.4) # xkcd:221
expected = pickle.load(open("tests/assets/SSTV_gen_samples.p"))
actual = list(islice(gen_values, 0, 1000))
self.assertEqual(expected, actual)
def test_write_wav(self):
self.maxDiff = None
sio = StringIO()
sio.close = MagicMock() # ignore close() so we can .getvalue()
mock_open = MagicMock(return_value=sio)
with mock.patch('__builtin__.open', mock_open):
self.s.write_wav('unittest.wav')
expected = 'bf61c82e96aed1370d5c1753d87729db'
data = sio.getvalue()
actual = hashlib.md5(data).hexdigest()
self.assertEqual(expected, actual)
def test_init(self):
self.assertEqual(self.s.image, False)
self.assertEqual(self.s.samples_per_sec, 48000)
self.assertEqual(self.s.bits, 16)
def setup(self):
self.logger.info("--------------------------------------")
self.logger.info(" Balloon Mission Computer V4.01 ")
self.logger.info("--------------------------------------")
self.logger.debug("setup")
# setup files and directories
with open('data/config.json') as fin:
self.config = json.load(fin)
self.images_dir = self.config["directories"][
"images"] if "directories" in self.config and "images" in self.config[
"directories"] else "./images"
self.tmp_dir = self.config["directories"][
"tmp"] if "directories" in self.config and "tmp" in self.config[
"directories"] else "./tmp"
if not os.path.exists(self.tmp_dir):
os.makedirs(self.tmp_dir)
if not os.path.exists(self.images_dir):
os.makedirs(self.images_dir)
# setup gpio
GPIO.setwarnings(False)
GPIO.setmode(GPIO.BCM) # Broadcom pin-numbering scheme
GPIO.setup(self.config['pins']['BUZZER'], GPIO.OUT)
GPIO.setup(self.config['pins']['LED1'], GPIO.OUT)
GPIO.setup(self.config['pins']['LED2'], GPIO.OUT)
GPIO.output(self.config['pins']['LED1'], GPIO.HIGH)
# modules
self.aprs = APRS(self.config['callsign'], self.config['ssid'],
"idoroseman.com")
self.modem = AFSK()
try:
self.gps = Ublox()
self.gps.start()
except:
pass
self.radio = Dorji(self.config['pins'])
self.radio.init()
self.radio_q = queue.Queue()
self.radio_thread = threading.Thread(target=self.radio_worker)
self.radio_thread.start()
self.timers = Timers(self.config['timers'])
self.sensors = Sensors()
self.cam = Camera()
self.ssdv = SSDV(self.config['callsign'], self.config['ssid'])
self.sstv = SSTV()
self.webserver = WebServer()
self.radio_queue(self.config['frequencies']['APRS'],
'data/boatswain_whistle.wav')
self.syslog = logging.getLogger()
kh = MyLogHandler()
kh._listeners.append(self.handle_log)
kh.setLevel(logging.DEBUG)
formatter2 = logging.Formatter('%(levelname)s: %(name)s - %(message)s')
kh.setFormatter(formatter2)
self.syslog.addHandler(kh)
# timers
for item in ["APRS", "APRS-META", "Imaging", 'Capture']:
self.timers.set_state(item, self.config['timers'][item] > 0)
self.timers.set_state("Buzzer", False)
# lets go
self.ledState = 1
self.imaging_counter = 1
self.state = "init"
self.min_alt = sys.maxsize
self.max_alt = 0
self.prev_alt = 0
self.send_bulltin()
GPIO.output(self.config['pins']['LED1'], GPIO.LOW)
def setUp(self):
self.s = SSTV(False, 48000, 16)
self.s.VIS_CODE = 0x00
self.s.SYNC = 7
class TestSSTV(unittest.TestCase):
def setUp(self):
self.s = SSTV(False, 48000, 16)
self.s.VIS_CODE = 0x00
self.s.SYNC = 7
def test_horizontal_sync(self):
horizontal_sync = self.s.horizontal_sync()
expected = (1200, self.s.SYNC)
actual = horizontal_sync.next()
self.assertEqual(expected, actual)
def test_gen_freq_bits(self):
gen_freq_bits = self.s.gen_freq_bits()
expected = [(1900, 300),
(1200, 10),
(1900, 300),
(1200, 30),
(1300, 30),
(1300, 30),
(1300, 30),
(1300, 30),
(1300, 30),
(1300, 30),
(1300, 30),
(1300, 30),
(1200, 30)]
actual = list(islice(gen_freq_bits, 0, 1000))
self.assertEqual(expected, actual)
# FIXME: Instead of using a test fixture, 'expected' should be synthesized?
def test_gen_values(self):
gen_values = self.s.gen_values()
expected = pickle.load(open("tests/assets/SSTV_gen_values.p"))
for e, g in izip(expected, gen_values):
self.assertAlmostEqual(e, g, delta=0.000000001)
def test_gen_samples(self):
gen_values = self.s.gen_samples()
# gen_samples uses random to avoid quantization noise
# by using additive noise, so there's always a chance
# of running the code two consecutive times on the same machine
# and having different results.
# https://en.wikipedia.org/wiki/Quantization_%28signal_processing%29
sstv.random = MagicMock(return_value=0.4) # xkcd:221
expected = pickle.load(open("tests/assets/SSTV_gen_samples.p"))
actual = list(islice(gen_values, 0, 1000))
self.assertEqual(expected, actual)
def test_write_wav(self):
self.maxDiff = None
sio = StringIO()
sio.close = MagicMock() # ignore close() so we can .getvalue()
mock_open = MagicMock(return_value=sio)
with mock.patch('__builtin__.open', mock_open):
self.s.write_wav('unittest.wav')
expected = 'bf61c82e96aed1370d5c1753d87729db'
data = sio.getvalue()
actual = hashlib.md5(data).hexdigest()
self.assertEqual(expected, actual)
def test_init(self):
self.assertEqual(self.s.image, False)
self.assertEqual(self.s.samples_per_sec, 48000)
self.assertEqual(self.s.bits, 16)
def setUp(self):
self.s = SSTV(False, 48000, 16)
self.s.VIS_CODE = 0x00
self.s.SYNC = 7
