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sandeepmistry / arduino-LoRa

An Arduino library for sending and receiving data using LoRa radios.
MIT License
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Modulation Mode Selection #207

Open jctang46 opened 6 years ago

jctang46 commented 6 years ago

Hi Sandeep, For using SX1276, if the default modulation mode is LoRa (CSS)?It supports FSK, GFSK, MSK, GMSK, LoRa and OOK. If not how to select (config) modulation mode? Before I use this library, first I need make sure I am in LoRa mode, if I only want to use a unique one among them. If you have any function in this library can allow me to set modulation mode? I know I can use dumpRegisters or readRegister to check the current modulation mode, if you can provide functions to check and set/reset modulation mode it would be better.

manvendra88 commented 5 years ago

Hi jctang46, Did you make up your own function for this? As I couldn't find one in the library.

torntrousers commented 5 years ago

This library only supports LoRa mode and internally it sets this mode to always be on, eg https://github.com/sandeepmistry/arduino-LoRa/blob/master/src/LoRa.cpp#L385

manvendra88 commented 5 years ago

Thanks a lot, torntrousers for pointing it out. https://github.com/Lora-net/LoRaMac-node/blob/develop/src/radio/sx1276/sx1276.c#L407 I think this one provides the selection of the mode.

jctang46 commented 5 years ago

Hi Manvendra, Not yet. What I have done is a GPS-LoRa tracking system. I used a Neo-6M GPS to get the location, display it on an OLED , at the same time transfer it to the receiving side by LoRa (SX 1276). The receiving side LoRa decodes the info , also displays on an OLED , at the same time uses WiFi (the microprocessor ESP32 has its own) to “publish” it to PubNub (my channel) , by using EON map , anyone in the world who knows my PubNub “subscribe” key and channel can find my real time location on EON map. The test was done . The SX1276 with 100 mw power can cover an area with one mile of radian in a residential area. (antenna 2 dbi for both sides) If put the transmission side on an UAV , it could cover an area for tens of miles. What I want is a LoRa lib can provide functions to switch SX1276 among Semtech LoRa mode and traditional FSK, GFSK etc.

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On May 28, 2019, at 8:10 AM, Manvendra Singh notifications@github.com wrote:

Thanks a lot, torntrousers for pointing it out. https://github.com/Lora-net/LoRaMac-node/blob/develop/src/radio/sx1276/sx1276.c#L407 I think this one provides the selection of the mode.

— You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub, or mute the thread.

manvendra88 commented 5 years ago

Hi Manvendra, Not yet. What I have done is a GPS-LoRa tracking system. I used a Neo-6M GPS to get the location, display it on an OLED , at the same time transfer it to the receiving side by LoRa (SX 1276). The receiving side LoRa decodes the info , also displays on an OLED , at the same time uses WiFi (the microprocessor ESP32 has its own) to “publish” it to PubNub (my channel) , by using EON map , anyone in the world who knows my PubNub “subscribe” key and channel can find my real time location on EON map. The test was done . The SX1276 with 100 mw power can cover an area with one mile of radian in a residential area. (antenna 2 dbi for both sides) If put the transmission side on an UAV , it could cover an area for tens of miles. What I want is a LoRa lib can provide functions to switch SX1276 among Semtech LoRa mode and traditional FSK, GFSK etc. … Sent from my iPhone On May 28, 2019, at 8:10 AM, Manvendra Singh @.***> wrote: Thanks a lot, torntrousers for pointing it out. https://github.com/Lora-net/LoRaMac-node/blob/develop/src/radio/sx1276/sx1276.c#L407 I think this one provides the selection of the mode. — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub, or mute the thread.

Hi jctang, Great job. :)) Curious to know about your project in greater detail (i will dm you for that). :)) For the library part, as @torntrousers has mentioned that this library uses LoRa mode by default, i happened to search a few libraries that support modification of different modes using https://www.youtube.com/watch?v=0dnnqToK28A&t=68s and found this one suitable for the job https://github.com/Lora-net/LoRaMac-node/blob/develop/src/radio/sx1276/sx1276.c#L407.