Difference between revisions of "Dragino Lora/GPS HAT"
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</pre> | </pre> | ||
|| | || | ||
− | * [[AsDevices]] library (0.18+) | + | * [[AsDevices]] library (0.18+) and '''git''' are needed. Board date/time should be correct to use ''git clone''. Then: |
<pre class="apf"> | <pre class="apf"> | ||
+ | root@opos6ul:~# cd | ||
root@opos6ul:~# git clone https://github.com/tftelkamp/single_chan_pkt_fwd.git | root@opos6ul:~# git clone https://github.com/tftelkamp/single_chan_pkt_fwd.git | ||
− | root@opos6ul:~# make CFLAGS=" | + | root@opos6ul:~# cd single_chan_pkt_fwd/ |
+ | root@opos6ul:~/single_chan_pkt_fwd# make CFLAGS="-Wall -I/usr/include/as_devices/" LIBS="-las_devices" | ||
</pre> | </pre> | ||
|} | |} | ||
+ | * If not already loaded, load ''spidev'' driver: | ||
<pre class="apf"> | <pre class="apf"> | ||
− | # modprobe spidev | + | root@opos6ul:~# modprobe spidev |
− | + | ||
− | + | ||
− | + | ||
− | + | ||
− | + | ||
− | + | ||
</pre> | </pre> | ||
− | * To get & printout UDP data | + | |
+ | * edit a script and put in it: | ||
+ | <pre class="apf"> | ||
+ | root@opos6ul:~# vim /root/start_gateway.sh | ||
+ | </pre> | ||
+ | |||
+ | <source lang="bash"> | ||
+ | #!/bin/sh | ||
+ | |||
+ | echo 9 > /sys/class/gpio/export | ||
+ | echo 24 > /sys/class/gpio/export | ||
+ | echo 97 > /sys/class/gpio/export | ||
+ | echo out > /sys/class/gpio/gpio97/direction | ||
+ | echo out > /sys/class/gpio/gpio24/direction | ||
+ | echo in > /sys/class/gpio/gpio9/direction | ||
+ | |||
+ | /root/single_chan_pkt_fwd/single_chan_pkt_fwd | ||
+ | </source> | ||
+ | |||
+ | * Make it executable: | ||
+ | <pre class="apf"> | ||
+ | root@opos6ul:~# chmod a+x /root/start_gateway.sh | ||
+ | </pre> | ||
+ | |||
+ | * Launch it ! ;-) | ||
+ | <pre class="apf"> | ||
+ | root@opos6ul:~# /root/start_gateway.sh | ||
+ | </pre> | ||
+ | |||
+ | * To get & printout UDP data forwarded by the gateway (if -i runtime option is used): | ||
<source lang="python"> | <source lang="python"> | ||
#!/usr/bin/python | #!/usr/bin/python | ||
import socket | import socket | ||
+ | import json | ||
− | UDP_IP = "192.168.1.28" | + | UDP_IP = "192.168.1.28" # my IP |
UDP_PORT = 1700 | UDP_PORT = 1700 | ||
Line 85: | Line 112: | ||
while True: | while True: | ||
data, addr = sock.recvfrom(1024) # buffer size is 1024 bytes | data, addr = sock.recvfrom(1024) # buffer size is 1024 bytes | ||
− | print "received message:", data | + | json_msg = data[12:] |
+ | # print "received JSON message:", json_msg | ||
+ | |||
+ | try: | ||
+ | decoded = json.loads(json_msg) | ||
+ | # print json.dumps(decoded, sort_keys=True, indent=4) | ||
+ | if decoded.get('rxpk'): | ||
+ | print "Packet data: ", decoded['rxpk'][0]['data'] | ||
+ | |||
+ | except (ValueError, KeyError, TypeError): | ||
+ | print "JSON format error" | ||
</source> | </source> | ||
===Node=== | ===Node=== | ||
* http://wiki.dragino.com/index.php?title=Use_Lora/GPS_HAT_%2B_RaspberryPi_to_set_up_a_Lora_Node | * http://wiki.dragino.com/index.php?title=Use_Lora/GPS_HAT_%2B_RaspberryPi_to_set_up_a_Lora_Node | ||
+ | |||
+ | {| class="wikitable" | ||
+ | |- | ||
+ | ! Buildroot !! Debian | ||
+ | |- | ||
+ | | | ||
<pre class="host"> | <pre class="host"> | ||
− | |||
$ make lmic-pi | $ make lmic-pi | ||
+ | </pre> | ||
+ | || | ||
+ | * [[AsDevices]] library (0.18+) and ''unzip'' (''apt-get install unzip'') are needed. Then: | ||
+ | <pre class="apf"> | ||
+ | root@opos6ul:~# cd | ||
+ | root@opos6ul:~# wget https://github.com/ernstdevreede/lmic_pi/archive/master.zip | ||
+ | root@opos6ul:~# unzip master.zip | ||
+ | root@opos6ul:~# cd lmic_pi-master/lmic | ||
+ | root@opos6ul:~# make CFLAGS="-c -Wall -I/usr/include/as_devices/" LIBS="-las_devices" | ||
+ | root@opos6ul:~# cd ../examples/thethingsnetwork-send-v1/ | ||
+ | root@opos6ul:~# make CFLAGS="-Wall -I/usr/include/as_devices/ -I../../lmic" LDFLAGS="-las_devices" | ||
+ | root@opos6ul:~# chmod a+x thethingsnetwork-send-v1 | ||
+ | </pre> | ||
+ | |} | ||
− | + | * edit a script and put in it: | |
− | + | <pre class="apf"> | |
− | + | root@opos6ul:~# vim /root/start_node.sh | |
− | + | ||
− | + | ||
− | # | + | |
− | + | ||
− | + | ||
</pre> | </pre> | ||
+ | |||
+ | <source lang="bash"> | ||
+ | #!/bin/sh | ||
+ | |||
+ | echo 9 > /sys/class/gpio/export | ||
+ | echo 18 > /sys/class/gpio/export | ||
+ | echo 19 > /sys/class/gpio/export | ||
+ | echo 24 > /sys/class/gpio/export | ||
+ | echo 97 > /sys/class/gpio/export | ||
+ | |||
+ | echo out > /sys/class/gpio/gpio97/direction | ||
+ | echo out > /sys/class/gpio/gpio24/direction | ||
+ | echo in > /sys/class/gpio/gpio9/direction | ||
+ | echo in > /sys/class/gpio/gpio18/direction | ||
+ | echo in > /sys/class/gpio/gpio19/direction | ||
+ | |||
+ | /root/lmic_pi/examples/thethingsnetwork-send-v1/thethingsnetwork-send-v1 & | ||
+ | </source> | ||
<pre class="apf"> | <pre class="apf"> | ||
# modprobe spidev | # modprobe spidev | ||
− | + | </pre> | |
− | + | ||
− | + | * Make it executable: | |
− | + | <pre class="apf"> | |
− | # | + | root@opos6ul:~# chmod a+x /root/start_node.sh |
− | + | </pre> | |
− | + | ||
− | + | * Launch it ! ;-) | |
− | + | <pre class="apf"> | |
− | # | + | root@opos6ul:~# /root/start_node.sh |
</pre> | </pre> | ||
Latest revision as of 18:01, 21 April 2017
Instructions to use the Dragino Lora/GPS HAT on OPOS6ULDev (thanks to RaspberryPi™ compatible connector).
Contents
LoRa™
Setup
- RESET is connected to RPi GPIO0 which is gpio24 on OPOS6UL set as output
- nSS is connected to RPi GPIO6, which is gpio97 on OPOS6UL set as output
- DIO0 is connected to RPi GPIO7, which is gpio10 on OPOS6UL set as input
- on recent models (like the one we tested) DIO1 is connected to RPi GPIO4, which is gpio18 on OPOS6UL set as input
- on recent models (like the one we tested) DIO1 is connected to RPi GPIO5, which is gpio19 on OPOS6UL set as input
- This Hat/Shield is using HOPERF RFM96W module (clone of Semtech's SX1276 ?) which is controlled through SPI bus.
# modprobe spidev
Testing that chip is recognized with python spidev
- Bring chip out of reset:
# echo 24 > /sys/class/gpio/export # echo out > /sys/class/gpio/gpio24/direction # echo 0 > /sys/class/gpio/gpio24/value # echo 1 > /sys/class/gpio/gpio24/value
- activate it:
# echo 97 > /sys/class/gpio/export # echo out > /sys/class/gpio/gpio97/direction # echo 0 > /sys/class/gpio/gpio97/value
- read ID (register 0x42):
import spidev
spi = spidev.SpiDev()
spi.open(3,0)
to_send=[0x42,0x00]
spi.xfer(to_send)
[255, 255]
Tested Software
Gateway
- https://github.com/tftelkamp/single_chan_pkt_fwd
- To compile/install it:
Buildroot | Debian |
---|---|
$ make lora-forwarder |
root@opos6ul:~# cd root@opos6ul:~# git clone https://github.com/tftelkamp/single_chan_pkt_fwd.git root@opos6ul:~# cd single_chan_pkt_fwd/ root@opos6ul:~/single_chan_pkt_fwd# make CFLAGS="-Wall -I/usr/include/as_devices/" LIBS="-las_devices" |
- If not already loaded, load spidev driver:
root@opos6ul:~# modprobe spidev
- edit a script and put in it:
root@opos6ul:~# vim /root/start_gateway.sh
#!/bin/sh
echo 9 > /sys/class/gpio/export
echo 24 > /sys/class/gpio/export
echo 97 > /sys/class/gpio/export
echo out > /sys/class/gpio/gpio97/direction
echo out > /sys/class/gpio/gpio24/direction
echo in > /sys/class/gpio/gpio9/direction
/root/single_chan_pkt_fwd/single_chan_pkt_fwd
- Make it executable:
root@opos6ul:~# chmod a+x /root/start_gateway.sh
- Launch it ! ;-)
root@opos6ul:~# /root/start_gateway.sh
- To get & printout UDP data forwarded by the gateway (if -i runtime option is used):
#!/usr/bin/python
import socket
import json
UDP_IP = "192.168.1.28" # my IP
UDP_PORT = 1700
sock = socket.socket(socket.AF_INET, # Internet
socket.SOCK_DGRAM) # UDP
sock.bind((UDP_IP, UDP_PORT))
while True:
data, addr = sock.recvfrom(1024) # buffer size is 1024 bytes
json_msg = data[12:]
# print "received JSON message:", json_msg
try:
decoded = json.loads(json_msg)
# print json.dumps(decoded, sort_keys=True, indent=4)
if decoded.get('rxpk'):
print "Packet data: ", decoded['rxpk'][0]['data']
except (ValueError, KeyError, TypeError):
print "JSON format error"
Node
Buildroot | Debian |
---|---|
$ make lmic-pi |
root@opos6ul:~# cd root@opos6ul:~# wget https://github.com/ernstdevreede/lmic_pi/archive/master.zip root@opos6ul:~# unzip master.zip root@opos6ul:~# cd lmic_pi-master/lmic root@opos6ul:~# make CFLAGS="-c -Wall -I/usr/include/as_devices/" LIBS="-las_devices" root@opos6ul:~# cd ../examples/thethingsnetwork-send-v1/ root@opos6ul:~# make CFLAGS="-Wall -I/usr/include/as_devices/ -I../../lmic" LDFLAGS="-las_devices" root@opos6ul:~# chmod a+x thethingsnetwork-send-v1 |
- edit a script and put in it:
root@opos6ul:~# vim /root/start_node.sh
#!/bin/sh
echo 9 > /sys/class/gpio/export
echo 18 > /sys/class/gpio/export
echo 19 > /sys/class/gpio/export
echo 24 > /sys/class/gpio/export
echo 97 > /sys/class/gpio/export
echo out > /sys/class/gpio/gpio97/direction
echo out > /sys/class/gpio/gpio24/direction
echo in > /sys/class/gpio/gpio9/direction
echo in > /sys/class/gpio/gpio18/direction
echo in > /sys/class/gpio/gpio19/direction
/root/lmic_pi/examples/thethingsnetwork-send-v1/thethingsnetwork-send-v1 &
# modprobe spidev
- Make it executable:
root@opos6ul:~# chmod a+x /root/start_node.sh
- Launch it ! ;-)
root@opos6ul:~# /root/start_node.sh
GPS
- GPS is connected to UART2 (/dev/ttymxc1)
- Use GPS to get time/date with NTP
Links
- http://www.dragino.com/products/module/item/106-lora-gps-hat.html
- http://wiki.dragino.com/index.php?title=Lora/GPS_HAT
LoRa is a registered trademark of Semtech.
RaspberryPi is a registered trademark of RaspberryPi Foundation.