raspberry pi lora hoperf python code

clone
https://github.com/mayeranalytics/pySX127x
sudo apt-get install python-dev

wget https://pypi.python.org/packages/source/s/spidev/spidev-3.1.tar.gz
tar xfvz  spidev-3.1.tar.gz
cd spidev-3.1
sudo python setup.py install

sudo pip install Adafruit

sudo pip install httplib2

edit files to account for Uputronics Hoperf board#############

pySX127x/SX127x/board_config.py:

line 33 onwards

change pins for the HAB pi board on CE1:

class BOARD:

  # Note that the BCOM numbering for the GPIOs is used.   

    DIO0 = 16   # RaspPi GPIO 16 = wpi 27 = phys 36 (input)#dio0 on habboard

  #  DIO1 = 12   # RaspPi GPIO 12 = wpi 26 = phys 16 (input)DIO5 on habboard

   # DIO2 = 24   # RaspPi GPIO 24 = wpi 5 = phys 18 (input)#notused

   # DIO3 = 25   # RaspPi GPIO 25 = wpi 6 = phys 22 (input)#notused

    LED  = 13   # RaspPi GPIO 23 = wpi 1 = phys 33 ( make output on ‘internet’ LED)

#################

line 74, in def SpiDev(): and change to

BOARD.spi.open (0,1) #for HOPE module at bus CE1

###################

pySX127x/SX127x/LoRaArgumentParser.py

line 41 onwards

change the default= items in the __init__ self section to the required frequency, spreading factor,bandwidth etc that you are using. Setting them here for 433MHz board means constructing a LoRa object without all the parameters will at least work without defaulting to 868mhz. I have mine set at 434.4mhz

#####################

pySX127x/SX127x/LoRa.py

Line 84 change calibration freq to 433mhz

Line 815 change freq to 433mhz

This just allows the self-test facility to work at 433mhz without supplying further parameters

remove any initialisations for DIO2 onwards

################

you can now run pySX127x/test_lora.py, to see if it works. Do a ‘gpio readall’( part of wiringpi) beforehand, which seems to un-stick it – I guess some wiring pi is not being initialised completely….

#################

I have a blind receiver running continuously, so I just modify the file pySX127x/rx_cont.py:

Line 44: in function

   def on_rx_done(self):

this is where I add my code – and is triggered on each
successful packet reception:IO