65 lines
1.7 KiB
Python
65 lines
1.7 KiB
Python
#!/usr/bin/env python
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#
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# Simplest possible example of using RF24Network,
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#
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# TRANSMITTER NODE
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# Sends messages from to receiver.
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#
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from __future__ import print_function
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import time
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from struct import *
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from RF24 import *
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from RF24Network import *
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# CE Pin, CSN Pin, SPI Speed
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# Setup for GPIO 22 CE and GPIO 25 CSN with SPI Speed @ 1Mhz
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#radio = radio(RPI_V2_GPIO_P1_22, RPI_V2_GPIO_P1_18, BCM2835_SPI_SPEED_1MHZ)
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# Setup for GPIO 22 CE and CE0 CSN with SPI Speed @ 4Mhz
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#radio = RF24(RPI_V2_GPIO_P1_15, BCM2835_SPI_CS0, BCM2835_SPI_SPEED_4MHZ)
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# Setup for GPIO 22 CE and CE1 CSN with SPI Speed @ 8Mhz
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#radio = RF24(RPI_V2_GPIO_P1_15, BCM2835_SPI_CS0, BCM2835_SPI_SPEED_8MHZ)
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# Setup for GPIO 22 CE and CE0 CSN for RPi B+ with SPI Speed @ 8Mhz
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#radio = RF24(RPI_BPLUS_GPIO_J8_22, RPI_BPLUS_GPIO_J8_24, BCM2835_SPI_SPEED_8MHZ)
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radio = RF24(RPI_V2_GPIO_P1_15, RPI_V2_GPIO_P1_24, BCM2835_SPI_SPEED_8MHZ)
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network = RF24Network(radio)
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millis = lambda: int(round(time.time() * 1000)) & 0xffffffff
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octlit = lambda n:int(n, 8)
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# Address of our node in Octal format (01,021, etc)
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this_node = octlit("01")
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# Address of the other node
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other_node = octlit("00")
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#ms - How long to wait before sending the next message
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interval = 2000
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radio.begin()
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time.sleep(0.1);
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network.begin(90, this_node) # channel 90
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radio.printDetails()
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packets_sent = 0
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last_sent = 0
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while 1:
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network.update()
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now = millis()
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# If it's time to send a message, send it!
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if ( now - last_sent >= interval ):
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last_sent = now
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print('Sending ..')
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payload = pack('<LL', millis(), packets_sent )
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packets_sent += 1
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ok = network.write(RF24NetworkHeader(other_node), payload)
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if ok:
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print('ok.')
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else:
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print('failed.')
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