-
Notifications
You must be signed in to change notification settings - Fork 439
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
- Loading branch information
Showing
4 changed files
with
335 additions
and
2 deletions.
There are no files selected for viewing
75 changes: 75 additions & 0 deletions
75
...LR11x0_Channel_Activity_Detection_Blocking/LR11x0_Channel_Activity_Detection_Blocking.ino
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,75 @@ | ||
| /* | ||
| RadioLib LR11x0 Blocking Channel Activity Detection Example | ||
| This example uses LR1110 to scan the current LoRa | ||
| channel and detect ongoing LoRa transmissions. | ||
| Unlike SX127x CAD, LR11x0 can detect any part | ||
| of LoRa transmission, not just the preamble. | ||
| Other modules from LR11x0 family can also be used. | ||
| Using blocking CAD is not recommended, as it will lead | ||
| to significant amount of timeouts, inefficient use of processor | ||
| time and can some miss packets! | ||
| Instead, interrupt CAD is recommended. | ||
| For default module settings, see the wiki page | ||
| https://github.com/jgromes/RadioLib/wiki/Default-configuration#lr11x0---lora-modem | ||
| For full API reference, see the GitHub Pages | ||
| https://jgromes.github.io/RadioLib/ | ||
| */ | ||
|
|
||
| // include the library | ||
| #include <RadioLib.h> | ||
|
|
||
| // LR1110 has the following connections: | ||
| // NSS pin: 10 | ||
| // DIO1 pin: 2 | ||
| // NRST pin: 3 | ||
| // BUSY pin: 9 | ||
| LR1110 radio = new Module(10, 2, 3, 9); | ||
|
|
||
| // or using RadioShield | ||
| // https://github.com/jgromes/RadioShield | ||
| //LR1110 radio = RadioShield.ModuleA; | ||
|
|
||
| void setup() { | ||
| Serial.begin(9600); | ||
|
|
||
| // initialize LR1110 with default settings | ||
| Serial.print(F("[LR1110] Initializing ... ")); | ||
| int state = radio.begin(); | ||
| if (state == RADIOLIB_ERR_NONE) { | ||
| Serial.println(F("success!")); | ||
| } else { | ||
| Serial.print(F("failed, code ")); | ||
| Serial.println(state); | ||
| while (true); | ||
| } | ||
| } | ||
|
|
||
| void loop() { | ||
| Serial.print(F("[LR1110] Scanning channel for LoRa transmission ... ")); | ||
|
|
||
| // start scanning current channel | ||
| int state = radio.scanChannel(); | ||
|
|
||
| if (state == RADIOLIB_LORA_DETECTED) { | ||
| // LoRa preamble was detected | ||
| Serial.println(F("detected!")); | ||
|
|
||
| } else if (state == RADIOLIB_CHANNEL_FREE) { | ||
| // no preamble was detected, channel is free | ||
| Serial.println(F("channel is free!")); | ||
|
|
||
| } else { | ||
| // some other error occurred | ||
| Serial.print(F("failed, code ")); | ||
| Serial.println(state); | ||
|
|
||
| } | ||
|
|
||
| // wait 100 ms before new scan | ||
| delay(100); | ||
| } |
110 changes: 110 additions & 0 deletions
110
...11x0_Channel_Activity_Detection_Interrupt/LR11x0_Channel_Activity_Detection_Interrupt.ino
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,110 @@ | ||
| /* | ||
| RadioLib LR11x0 Channel Activity Detection Example | ||
| This example uses LR1110 to scan the current LoRa | ||
| channel and detect ongoing LoRa transmissions. | ||
| Unlike SX127x CAD, LR11x0 can detect any part | ||
| of LoRa transmission, not just the preamble. | ||
| Other modules from LR11x0 family can also be used. | ||
| For default module settings, see the wiki page | ||
| https://github.com/jgromes/RadioLib/wiki/Default-configuration#lr11x0---lora-modem | ||
| For full API reference, see the GitHub Pages | ||
| https://jgromes.github.io/RadioLib/ | ||
| */ | ||
|
|
||
| // include the library | ||
| #include <RadioLib.h> | ||
|
|
||
| // LR1110 has the following connections: | ||
| // NSS pin: 10 | ||
| // DIO1 pin: 2 | ||
| // NRST pin: 3 | ||
| // BUSY pin: 9 | ||
| LR1110 radio = new Module(10, 2, 3, 9); | ||
|
|
||
| // or using RadioShield | ||
| // https://github.com/jgromes/RadioShield | ||
| //LR1110 radio = RadioShield.ModuleA; | ||
|
|
||
| void setup() { | ||
| Serial.begin(9600); | ||
|
|
||
| // initialize LR1110 with default settings | ||
| Serial.print(F("[LR1110] Initializing ... ")); | ||
| int state = radio.begin(); | ||
| if (state == RADIOLIB_ERR_NONE) { | ||
| Serial.println(F("success!")); | ||
| } else { | ||
| Serial.print(F("failed, code ")); | ||
| Serial.println(state); | ||
| while (true); | ||
| } | ||
|
|
||
| // set the function that will be called | ||
| // when LoRa packet or timeout is detected | ||
| radio.setDio1Action(setFlag); | ||
|
|
||
| // start scanning the channel | ||
| Serial.print(F("[LR1110] Starting scan for LoRa preamble ... ")); | ||
| state = radio.startChannelScan(); | ||
| if (state == RADIOLIB_ERR_NONE) { | ||
| Serial.println(F("success!")); | ||
| } else { | ||
| Serial.print(F("failed, code ")); | ||
| Serial.println(state); | ||
| } | ||
| } | ||
|
|
||
| // flag to indicate that a packet was detected or CAD timed out | ||
| volatile bool scanFlag = false; | ||
|
|
||
| // this function is called when a complete packet | ||
| // is received by the module | ||
| // IMPORTANT: this function MUST be 'void' type | ||
| // and MUST NOT have any arguments! | ||
| #if defined(ESP8266) || defined(ESP32) | ||
| ICACHE_RAM_ATTR | ||
| #endif | ||
| void setFlag(void) { | ||
| // something happened, set the flag | ||
| scanFlag = true; | ||
| } | ||
|
|
||
| void loop() { | ||
| // check if the flag is set | ||
| if(scanFlag) { | ||
| // reset flag | ||
| scanFlag = false; | ||
|
|
||
| // check CAD result | ||
| int state = radio.getChannelScanResult(); | ||
|
|
||
| if (state == RADIOLIB_LORA_DETECTED) { | ||
| // LoRa packet was detected | ||
| Serial.println(F("[LR1110] Packet detected!")); | ||
|
|
||
| } else if (state == RADIOLIB_CHANNEL_FREE) { | ||
| // channel is free | ||
| Serial.println(F("[LR1110] Channel is free!")); | ||
|
|
||
| } else { | ||
| // some other error occurred | ||
| Serial.print(F("[LR1110] Failed, code ")); | ||
| Serial.println(state); | ||
|
|
||
| } | ||
|
|
||
| // start scanning the channel again | ||
| Serial.print(F("[LR1110] Starting scan for LoRa preamble ... ")); | ||
| state = radio.startChannelScan(); | ||
| if (state == RADIOLIB_ERR_NONE) { | ||
| Serial.println(F("success!")); | ||
| } else { | ||
| Serial.print(F("failed, code ")); | ||
| Serial.println(state); | ||
| } | ||
| } | ||
| } |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters