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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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support SX1278? #66

Open xiaohuasheng opened 7 years ago

xiaohuasheng commented 7 years ago

I connect Raspberry 3 with the SX1278 radio module. My SX1278 radio module supports 433MHz, so I edit the global_conf.json: image Run the gateway, it displays: image but when I send data from a lora end-device, it can't receive anything, it supports SX1278 or not? moreover, as the sheet shows, mode 10's BW is 500, but if I set BW in global_conf.json, such as 433, which will work? image thanks a lot!

CongducPham commented 7 years ago

BW is not the frequency. So it is not the parameter that you have to change. Use the freq field to indicate a frequency. Please, have close look at the README:

https://github.com/CongducPham/LowCostLoRaGw#running-in-433mhz-band

regards,

Le 14/01/2017 à 09:53, xiaohuasheng a écrit :

I connect Raspberry 3 with the SX1278 radio module. My SX1278 radio module supports 433MHz, so I edit the global_conf.json: image https://cloud.githubusercontent.com/assets/11706254/21953686/0fef32ba-da79-11e6-90f7-0dcb7a8e282c.png Run the gateway, it displays: image https://cloud.githubusercontent.com/assets/11706254/21953676/d27aa202-da78-11e6-9d60-0a97c1a72d68.png but when I send data from a lora end-device, it can receive anything, it supports SX1278 or not? moreover, as the sheet shows, mode 10's BW is 500, but if I set BW in global_conf.json, such as 433, which will work? image https://cloud.githubusercontent.com/assets/11706254/21953710/a662e69c-da79-11e6-8588-55678ce0f96b.png thanks a lot!

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C. Pham.

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xiaohuasheng commented 7 years ago

@CongducPham Thans for your reply, I have read 433MHz part of README, and did that as it suggests, the result is: image image I run the same command but have two results, why? and I still can't receive data from end-device, how to debug it? also, I don't know the meaning of the tips like"Power: state 0", what "state 0" represents? Hope for your answer!

CongducPham commented 7 years ago

state = 0 means everything is OK. Here, setting the frequency seems to give an error of -1 which should not happen in the latest version of the SX1272 lib. I suspect that you are using an old version. Get the latest version of both SX1272.cpp and SX1272.h on the github and retry.

Anyway, normally, even if the returned state is -1, the gw should be running on 433.3MHz. If you don't receive anything, check if your end-device is on that frequency. What example are you using? Make sure that you also have BAND433 uncommented in the example.

chijiao commented 5 years ago

I'm tested, support perfect. please change mode to 1. i have two sx1278 model. one as gateway, one as node. can send and received.