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Change coding style to match library style guide.

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This commit is contained in:
Nathan Seidle 2022-01-17 11:43:13 -07:00
parent 20e1ab23df
commit c4fec32965
2 changed files with 73 additions and 96 deletions
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86
examples/SX127x/SX127x_Receive_FHSS/SX127x_Receive_FHSS.ino
View file

@ -18,68 +18,61 @@
The SX1276 / 7 / 8 / 9 supports FHSS or Frequency Hopping Spread Spectrum. The SX1276 / 7 / 8 / 9 supports FHSS or Frequency Hopping Spread Spectrum.
Once a hopping period is set and a transmission is started the radio Once a hopping period is set and a transmission is started the radio
will begin triggering interrupts every hop period where the radio frequency will begin triggering interrupts every hop period where the radio frequency
is changed to the next channel. This allows a simple mechanism to abide by is changed to the next channel.
the FCC 400ms max dwell time rule.
https://www.govinfo.gov/content/pkg/CFR-2019-title47-vol1/pdf/CFR-2019-title47-vol1-sec15-247.pdf
*/ */
#include <RadioLib.h> //Click here to get the library: http://librarymanager/All#RadioLib #include <RadioLib.h> //Click here to get the library: http://librarymanager/All#RadioLib
//Pins for RFM97 100mW Shield to SparkFun ESP32 Thing Plus C // SX1276 has the following connections:
int pin_cs = 15; const int pin_cs = 10;
int pin_dio0 = 26; const int pin_dio0 = 2;
int pin_dio1 = 25; const int pin_dio1 = 9;
int pin_rst = 32; const int pin_rst = 3;
SX1276 radio = new Module(pin_cs, pin_dio0, pin_rst, pin_dio1); SX1276 radio = new Module(pin_cs, pin_dio0, pin_rst, pin_dio1);
int counter = 0;
volatile bool rxComplete = false; volatile bool rxComplete = false;
volatile bool fhssChange = false; volatile bool fhssChange = false;
//The channel frequencies can be generated randomly or hard coded // the channel frequencies can be generated randomly or hard coded
float channels[] = {908.0, 906.0, 907.0, 905.0, 903.0, 910.0, 909.0}; float channels[] = {908.0, 906.0, 907.0, 905.0, 903.0, 910.0, 909.0};
int numberOfChannels = sizeof(channels) / sizeof(float); int numberOfChannels = sizeof(channels) / sizeof(float);
int hopsCompleted = 0; int hopsCompleted = 0;
void setup() void setup() {
{ Serial.begin(9600);
Serial.begin(115200);
//Begin radio on home channel // begin radio on home channel
Serial.print(F("[SX127x] Initializing ... ")); Serial.print(F("[SX127x] Initializing ... "));
int state = radio.begin(channels[0]); int state = radio.begin(channels[0]);
if (state != RADIOLIB_ERR_NONE) if (state != RADIOLIB_ERR_NONE) {
{
Serial.print(F("Failed with code: ")); Serial.print(F("Failed with code: "));
Serial.println(state); Serial.println(state);
} }
else else
Serial.println(F("Success!")); Serial.println(F("Success!"));
// Set hop period to enable FHSS // set hop period to enable FHSS
// We set an artifically short period to show lots of hops state = radio.setFHSSHoppingPeriod(9);
// HoppingPeriod = Tsym * FreqHoppingPeriod if (state != RADIOLIB_ERR_NONE) {
// Given defaults of spreadfactor = 9, bandwidth = 125, it follows Tsym = 4.10ms Serial.print(F("Error setting hopping period: "));
// HoppingPeriod = 4.10 * 9 = 36.9ms. Can be as high as 400ms to be within regulatory limits Serial.println(state);
radio.setFHSSHoppingPeriod(9); }
radio.setDio0Action(dio0ISR); // called when transmission is finished
radio.setDio1Action(dio1ISR); // called after a transmission has started, so we can move to next freq
Serial.print(F("Hopping period: ")); // start listening for LoRa packets
Serial.println(radio.getFHSSHoppingPeriod()); Serial.print(F("[SX1278] Starting to listen ... "));
state = radio.startReceive();
radio.setDio0Action(dio0ISR); //Called when transmission is finished if (state != RADIOLIB_ERR_NONE) {
radio.setDio1Action(dio1ISR); //Called after a transmission has started, so we can move to next freq Serial.print(F("failed, code "));
Serial.println(state);
radio.startReceive(); while (true);
}
Serial.println(F("Waiting for new packet"));
} }
void loop() void loop() {
{ if (rxComplete == true) {
if (rxComplete == true)
{
uint8_t incomingBuffer[255]; uint8_t incomingBuffer[255];
radio.readData(incomingBuffer, 255); radio.readData(incomingBuffer, 255);
uint8_t receivedBytes = radio.getPacketLength(); uint8_t receivedBytes = radio.getPacketLength();
@ -95,11 +88,8 @@ void loop()
rxComplete = false; rxComplete = false;
} }
if (fhssChange == true) if (fhssChange == true) {
{
radio.setFrequency(channels[radio.getFHSSChannel() % numberOfChannels]); radio.setFrequency(channels[radio.getFHSSChannel() % numberOfChannels]);
//Serial.print(F("Radio on channel: "));
//Serial.println(radio.getFHSSChannel());
hopsCompleted++; hopsCompleted++;
radio.clearFHSSInt(); radio.clearFHSSInt();
@ -107,16 +97,14 @@ void loop()
} }
} }
//ISR when DIO0 goes low // ISR when DIO0 goes low
//Called when transmission is complete or when RX is received // called when transmission is complete or when RX is received
void dio0ISR(void) void dio0ISR(void) {
{
rxComplete = true; rxComplete = true;
} }
//ISR when DIO1 goes low // ISR when DIO1 goes low
//Called when FhssChangeChannel interrupt occurs (at the beginning of each transmission) // called when FhssChangeChannel interrupt occurs (at the beginning of each transmission)
void dio1ISR(void) void dio1ISR(void) {
{
fhssChange = true; fhssChange = true;
} }

83
examples/SX127x/SX127x_Transmit_FHSS/SX127x_Transmit_FHSS.ino
View file

@ -18,77 +18,71 @@
The SX1276 / 7 / 8 / 9 supports FHSS or Frequency Hopping Spread Spectrum. The SX1276 / 7 / 8 / 9 supports FHSS or Frequency Hopping Spread Spectrum.
Once a hopping period is set and a transmission is started the radio Once a hopping period is set and a transmission is started the radio
will begin triggering interrupts every hop period where the radio frequency will begin triggering interrupts every hop period where the radio frequency
is changed to the next channel. This allows a simple mechanism to abide by is changed to the next channel.
the FCC 400ms max dwell time rule.
https://www.govinfo.gov/content/pkg/CFR-2019-title47-vol1/pdf/CFR-2019-title47-vol1-sec15-247.pdf
*/ */
#include <RadioLib.h> //Click here to get the library: http://librarymanager/All#RadioLib #include <RadioLib.h> //Click here to get the library: http://librarymanager/All#RadioLib
//Pins for SparkFun 1W EBYTE Breakout to Uno // SX1276 has the following connections:
int pin_cs = 7; const int pin_cs = 10;
int pin_dio0 = 3; const int pin_dio0 = 2;
int pin_dio1 = 2; const int pin_dio1 = 9;
int pin_rst = A2; const int pin_rst = 3;
SX1276 radio = new Module(pin_cs, pin_dio0, pin_rst, pin_dio1); SX1276 radio = new Module(pin_cs, pin_dio0, pin_rst, pin_dio1);
volatile bool xmitComplete = false; volatile bool xmitComplete = false;
volatile bool fhssChange = false; volatile bool fhssChange = false;
//The channel frequencies can be generated randomly or hard coded // the channel frequencies can be generated randomly or hard coded
float channels[] = {908.0, 906.0, 907.0, 905.0, 903.0, 910.0, 909.0}; float channels[] = {908.0, 906.0, 907.0, 905.0, 903.0, 910.0, 909.0};
int numberOfChannels = sizeof(channels) / sizeof(float); int numberOfChannels = sizeof(channels) / sizeof(float);
int hopsCompleted = 0; int hopsCompleted = 0;
int counter = 0; int counter = 0;
void setup() void setup() {
{ Serial.begin(9600);
Serial.begin(115200);
//Begin radio on home channel // begin radio on home channel
Serial.print(F("[SX127x] Initializing ... ")); Serial.print(F("[SX127x] Initializing ... "));
int state = radio.begin(channels[0]); int state = radio.begin(channels[0]);
if (state != RADIOLIB_ERR_NONE) if (state != RADIOLIB_ERR_NONE) {
{
Serial.print(F("Failed with code: ")); Serial.print(F("Failed with code: "));
Serial.println(state); Serial.println(state);
} }
else else
Serial.println(F("Success!")); Serial.println(F("Success!"));
// Set hop period to enable FHSS // set hop period to enable FHSS
// We set an artifically short period to show lots of hops state = radio.setFHSSHoppingPeriod(9);
// HoppingPeriod = Tsym * FreqHoppingPeriod if(state != RADIOLIB_ERR_NONE) {
// Given defaults of spreadfactor = 9, bandwidth = 125, it follows Tsym = 4.10ms Serial.print(F("Error setting hopping period: "));
// HoppingPeriod = 4.10 * 9 = 36.9ms. Can be as high as 400ms to be within regulatory limits Serial.println(state);
radio.setFHSSHoppingPeriod(9); }
Serial.print(F("Hopping period: ")); radio.setDio0Action(dio0ISR); // called when transmission is finished
Serial.println(radio.getFHSSHoppingPeriod()); radio.setDio1Action(dio1ISR); // called after a transmission has started, so we can move to next freq
radio.setDio0Action(dio0ISR); //Called when transmission is finished
radio.setDio1Action(dio1ISR); //Called after a transmission has started, so we can move to next freq
Serial.print(F("Transmitting packet...")); Serial.print(F("Transmitting packet..."));
char output[256]; String longOutput = "Let's create a really long packet to trigger lots of hop interrupts. A packet can be up to 256 bytes long. This packet is 222 bytes so using sf = 9, bw = 125, timeOnAir is 1488ms. 1488ms / (9*4.10ms) = 40 hops. Counter: ";
sprintf(output, "Let's create a really long packet to trigger lots of hop interrupts. A packet can be up to 256 bytes long. This packet is 222 bytes so using sf = 9, bw = 125, timeOnAir is 1488ms. 1488ms / (9*4.10ms) = 40 hops. Counter: %d", counter++);
radio.startTransmit(output, strlen(output) - 1); state = radio.startTransmit(longOutput + counter);
if (state != RADIOLIB_ERR_NONE) {
Serial.print(F("Error transmitting with code: "));
Serial.println(state);
}
} }
void loop() void loop() {
{ if (xmitComplete == true) {
if (xmitComplete == true)
{
xmitComplete = false; xmitComplete = false;
Serial.println(F("Transmit complete")); Serial.println(F("Transmit complete"));
Serial.print(F("Radio after xmit is on channel: ")); Serial.print(F("Radio after xmit is on channel: "));
Serial.println(radio.getFHSSChannel()); Serial.println(radio.getFHSSChannel());
//The FHSS channel is automatically reset to 0 upon end of transmission // the FHSS channel is automatically reset to 0 upon end of transmission
radio.setFrequency(channels[radio.getFHSSChannel() % numberOfChannels]); //Return to home channel before next transaction radio.setFrequency(channels[radio.getFHSSChannel() % numberOfChannels]); // Return to home channel before next transaction
Serial.print(F("Hops completed: ")); Serial.print(F("Hops completed: "));
Serial.println(hopsCompleted); Serial.println(hopsCompleted);
@ -97,11 +91,8 @@ void loop()
radio.startReceive(); radio.startReceive();
} }
if (fhssChange == true) if (fhssChange == true) {
{
radio.setFrequency(channels[radio.getFHSSChannel() % numberOfChannels]); radio.setFrequency(channels[radio.getFHSSChannel() % numberOfChannels]);
//Serial.print(F("Radio on channel: "));
//Serial.println(radio.getFHSSChannel());
hopsCompleted++; hopsCompleted++;
fhssChange = false; fhssChange = false;
@ -109,16 +100,14 @@ void loop()
} }
} }
//ISR when DIO0 goes low // ISR when DIO0 goes low
//Called when transmission is complete or when RX is received // called when transmission is complete or when RX is received
void dio0ISR(void) void dio0ISR(void) {
{
xmitComplete = true; xmitComplete = true;
} }
//ISR when DIO1 goes low // ISR when DIO1 goes low
//Called when FhssChangeChannel interrupt occurs (at regular HoppingPeriods) // called when FhssChangeChannel interrupt occurs (at regular HoppingPeriods)
void dio1ISR(void) void dio1ISR(void) {
{
fhssChange = true; fhssChange = true;
} }