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CongducPham / LowCostLoRaGw

Low-cost LoRa IoT & gateway with SX12XX (SX1261/62/68; SX1272/76/77/78/79; SX1280/81), RaspberryPI and Arduino boards
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Arduino Nucleo and Python Scripts DOWNLINK #279

Open Arcanum7 opened 4 years ago

Arcanum7 commented 4 years ago

Hi everybody! I have Arduino Nucleo + sx1272 shield + Arduino_LoRa_Gateway_v2.ino = it works properly! I have connected it with linux ubuntu 16.04 LTS in virtualbox (windows as host system), crosslink the virtual com port to linux and it work. do this cmd python 38400SerialToStdout.py /dev/ttyS0 | python ./post_processing_gw.py | python ./log_gw.py and i can see the UPLINK frames from my devices. thats good! Can it do the DOWNLINK?

p.s. i can connect this Gateway to any lorawan server?

CongducPham commented 4 years ago

Hi, good to hear that it works.

Downlink is thoeretically possible to implement but it is a major effort. You can start with what has been implemented at the higher layer by looking at the scripts/start_gw.sh that launches several tasks, including the one that is realizing PULL DATA from network server. Then, from that you need to send downlink message to your Arduino Nucleo. Modify Arduino_LoRa_Gateway_v2.ino accordingly to handle downlink transmission of the downlink message.

Normally, you should be able connect, a least for uplink, to any lorawan server. You can try to install a local ChirpStack LoRaWAN server and test. See https://github.com/CongducPham/LowCostLoRaGw/blob/master/gw_full_latest/README-TTN.md

regards,

Arcanum7 commented 4 years ago

If i could do my GW with RPi + spi sx1272 it will be bidirectional GW ?

CongducPham commented 4 years ago

Yes, see this README: https://github.com/CongducPham/LowCostLoRaGw/blob/master/gw_full_latest/README-downlink.md