125 lines
2.7 KiB
Python
Executable file
125 lines
2.7 KiB
Python
Executable file
#!/usr/bin/env python2.7
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from raspyrfm import *
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import sys
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import time
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import it32
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import tristate
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import bistate24
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import fs20
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from argparse import ArgumentParser
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import wave, struct
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import threading
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import rcprotocols
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parser = ArgumentParser()
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parser.add_argument("-t", "--timebase", type=int, help=u"timebase in \u03bcs")
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parser.add_argument("-r", "--repeats", type=int, help=u"number of repetitions")
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parser.add_argument("-m", "--module", type=int, metavar="1-4", help=u"RaspyRFM module 1-4", default=1)
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parser.add_argument("-f", "--frequency", type=float, help=u"frequency in MHz", default=433.92)
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parser.add_argument("-p", "--protocol", help=u"Protocol for sending")
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parser.add_argument("-w", "--write", help=u"write wavefile")
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args, remainargs = parser.parse_known_args()
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txdata = None
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if len(remainargs) > 0:
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txdata = rcprotocols.encode(args.protocol, remainargs)
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if txdata is None:
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print("invalid code!")
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exit()
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if not raspyrfm_test(args.module, RFM69):
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print("Error! RaspyRFM not found")
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exit()
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rfm = RaspyRFM(args.module, RFM69)
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rfm.set_params(
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Freq = args.frequency, #MHz
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Datarate = 20.0, #kbit/s
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Bandwidth = 300, #kHz
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SyncPattern = [],
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RssiThresh = -105, #dBm
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ModulationType = rfm69.OOK,
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OokThreshType = 1, #peak thresh
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OokPeakThreshDec = 3,
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Preamble = 0,
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TxPower = 13
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)
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if txdata:
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rfm.set_params(
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SyncPattern = [],
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Datarate = 1000.0 / (args.timebase if args.timebase else txdata[1])
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)
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rep = (args.repeats if args.repeats else txdata[2])
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rfm.send(txdata[0] * rep)
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print("Code sent!")
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exit()
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trainbuf = []
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class RxThread(threading.Thread):
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def __init__(self):
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threading.Thread.__init__(self)
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def __rxcb(self, rfm):
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bit = False
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cnt = 1
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train = []
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if args.write:
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wf = wave.open(args.write, "wb")
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wf.setnchannels(1)
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wf.setsampwidth(1)
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wf.setframerate(20000)
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else:
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wf = None
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while True:
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fifo = rfm.read_fifo_wait(64)
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ba = bytearray()
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for b in fifo:
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mask = 0x80
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while mask != 0:
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if (b & mask) != 0:
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ba.append(245)
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else:
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ba.append(10)
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if ((b & mask) != 0) == bit:
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cnt += 1
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else:
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if cnt < 3: #<150 us
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train *= 0 #clear
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elif cnt > 50:
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if not bit:
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train.append(cnt)
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if len(train) > 20:
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trainbuf.append(list(train))
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train *= 0 #clear
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elif len(train) > 0 or bit:
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train.append(cnt)
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cnt = 1
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bit = not bit
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mask >>= 1
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if wf:
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wf.writeframesraw(ba)
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wf.writeframes('')
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def run(self):
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rfm.start_receive(self.__rxcb)
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rxthread = RxThread()
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rxthread.daemon = True
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rxthread.start()
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while True:
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time.sleep(0.1)
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if len(trainbuf) > 0:
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train = trainbuf.pop()
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for i, v in enumerate(train):
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train[i] = v * 50
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rcprotocols.decode(train)
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