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Lazarewicz Julien
2025-07-22 15:27:00 +02:00
commit 6c6451c92c
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84
examples/raspi/rf95/rf95_server/Makefile Normal file
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# Makefile
# Example for RH_RF95 on Raspberry Pi
# Requires pigpio to be installed: http://abyz.me.uk/rpi/pigpio/
CROSSCOMPILER=$(shell if [ -z `which 'arm-linux-gnueabihf-g++'` ]; then echo "no"; else echo "yes"; fi)
ifeq ($(CROSSCOMPILER),yes)
CC = arm-linux-gnueabihf-g++
CFLAGS = -DRASPBERRY_PI -DRH_USE_MUTEX -pthread
LIBS = -lpigpio -lrt -L$(PIGPIOBASE) -lpthread -D_REENTRANT
RADIOHEADBASE = ../../../..
PIGPIOBASE = ../../../../../pigpio/
SHARED = ../shared/
INCLUDE = -I$(RADIOHEADBASE) -I$(PIGPIOBASE) -I$(SHARED)
else
CC = g++
CFLAGS = -DRASPBERRY_PI -DRH_USE_MUTEX -pthread
LIBS = -lpigpio -lrt
RADIOHEADBASE = ../../../..
PIGPIOBASE = ../../../../../pigpio/
SHARED = ../shared/
INCLUDE = -I$(RADIOHEADBASE) -I$(PIGPIOBASE) -I$(SHARED)
endif
ifeq ($(REGION),Europe)
CFLAGS += -DEUROPE
endif
ifeq ($(LORABOARD),DraginoLoraGPSHat)
CFLAGS += -DDRAGINO_GPS_HAT
endif
ifeq ($(DEBUG),1)
CFLAGS += -g3
endif
all: rf95_server1 rf95_server2
RasPi.o: $(RADIOHEADBASE)/RHutil_pigpio/RasPi.cpp
$(CC) $(CFLAGS) -c $(RADIOHEADBASE)/RHutil_pigpio/RasPi.cpp $(INCLUDE)
help_functions.o: $(SHARED)/help_functions.cpp
$(CC) $(CFLAGS) -c $(INCLUDE) $<
rf95_server1.o: rf95_server1.cpp
$(CC) $(CFLAGS) -c $(INCLUDE) $<
rf95_server2.o: rf95_server2.cpp
$(CC) $(CFLAGS) -c $(INCLUDE) $<
RH_RF95.o: $(RADIOHEADBASE)/RH_RF95.cpp
$(CC) $(CFLAGS) -c $(INCLUDE) $<
RHDatagram.o: $(RADIOHEADBASE)/RHDatagram.cpp
$(CC) $(CFLAGS) -c $(INCLUDE) $<
RHHardwareSPI.o: $(RADIOHEADBASE)/RHHardwareSPI.cpp
$(CC) $(CFLAGS) -c $(INCLUDE) $<
RHSPIDriver.o: $(RADIOHEADBASE)/RHSPIDriver.cpp
$(CC) $(CFLAGS) -c $(INCLUDE) $<
RHGenericDriver.o: $(RADIOHEADBASE)/RHGenericDriver.cpp
$(CC) $(CFLAGS) -c $(INCLUDE) $<
RHGenericSPI.o: $(RADIOHEADBASE)/RHGenericSPI.cpp
$(CC) $(CFLAGS) -c $(INCLUDE) $<
gpsMT3339.o: $(SHARED)/gpsMT3339.cpp
$(CC) $(CFLAGS) -c $(INCLUDE) $<
rf95_server1: rf95_server1.o help_functions.o RH_RF95.o RHDatagram.o RasPi.o RHHardwareSPI.o RHSPIDriver.o RHGenericDriver.o RHGenericSPI.o gpsMT3339.o
$(CC) $^ $(LIBS) -o rf95_server1
rf95_server2: rf95_server2.o help_functions.o RH_RF95.o RHDatagram.o RasPi.o RHHardwareSPI.o RHSPIDriver.o RHGenericDriver.o RHGenericSPI.o gpsMT3339.o
$(CC) $^ $(LIBS) -o rf95_server2
clean:
rm -rf *.o rf95_server1 rf95_server2
deploy: rf95_server1 rf95_server2
sshpass -p"$(PASSWD)" scp rf95_server1 pi@$(HOST):/home/pi
sshpass -p"$(PASSWD)" scp rf95_server2 pi@$(HOST):/home/pi

147
examples/raspi/rf95/rf95_server/rf95_server1.cpp Normal file
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// rf95_server.cpp
// -*- mode: C++ -*-
// Example app showing how to create a simple messageing server
// with the RH_RF95 class. RH_RF95 class does not provide for addressing or
// reliability, so you should only use RH_RF95 if you do not need the higher
// level messaging abilities.
// It is designed to work with the other example rf95_client.
//
// Requires Pigpio GPIO library. Install by downloading and compiling from
// http://abyz.me.uk/rpi/pigpio/, or install via command line with
// "sudo apt install pigpio". To use, run "make" at the command line in
// the folder where this source code resides. Then execute application with
// sudo ./rf95_server.
// Tested on Raspberry Pi Zero and Zero W with LoRaWan/TTN RPI Zero Shield
// by ElectronicTricks. Although this application builds and executes on
// Raspberry Pi 3, there seems to be missed messages and hangs.
// Strategically adding delays does seem to help in some cases.
//(9/20/2019) Contributed by Brody M. Based off rf22_server.pde.
// Raspberry Pi mods influenced by nrf24 example by Mike Poublon,
// and Charles-Henri Hallard (https://github.com/hallard/RadioHead)
#include <pigpio.h>
#include <stdio.h>
#include <signal.h>
#include <unistd.h>
#include <RH_RF95.h>
//Function Definitions
void sig_handler(int sig);
#ifdef DRAGINO_GPS_HAT
// Pin definitions for dragino gps hat
#define RFM95_CS_PIN 25 // Slave Select on GPIO25 so P1 connector pin #22
#define RFM95_IRQ_PIN 4 // IRQ on GPIO4 so P1 connector pin #7
#define RFM95_RESET_PIN 17 // Reset on GPIO17 so P1 connector pin #11
#undef RFM95_LED // Dragino Board as no LED to drive
#else
//Pin Definitions
#define RFM95_CS_PIN 8
#define RFM95_IRQ_PIN 25
#define RFM95_LED 4
#endif
//Client and Server Addresses
#define CLIENT_ADDRESS 1
#define SERVER_ADDRESS 2
//RFM95 Configuration
#ifdef EUROPE
#define RFM95_FREQUENCY 868.00
#else
#define RFM95_FREQUENCY 915.00
#endif
#define RFM95_TXPOWER 14
// Singleton instance of the radio driver
RH_RF95 rf95(RFM95_CS_PIN, RFM95_IRQ_PIN);
//Flag for Ctrl-C
int flag = 0;
//Main Function
int main (int argc, const char* argv[] )
{
if (gpioInitialise()<0)
{
printf( "\n\nRPI rf95_server startup Failed.\n" );
return 1;
}
gpioSetSignalFunc(2, sig_handler); //2 is SIGINT. Ctrl+C will cause signal.
printf( "\nRPI rf95_server startup OK.\n" );
printf( "\nRPI GPIO settings:\n" );
printf("CS-> GPIO %d\n", (uint8_t) RFM95_CS_PIN);
printf("IRQ-> GPIO %d\n", (uint8_t) RFM95_IRQ_PIN);
#ifdef RFM95_LED
gpioSetMode(RFM95_LED, PI_OUTPUT);
printf("LED-> GPIO %d\n", (uint8_t) RFM95_LED);
gpioWrite(RFM95_LED, PI_ON);
gpioDelay(500000);
gpioWrite(RFM95_LED, PI_OFF);
#endif
if (!rf95.init())
{
printf( "\n\nRF95 Driver Failed to initialize.\n\n" );
return 1;
}
/* Begin Manager/Driver settings code */
printf("\nRFM 95 Settings:\n");
printf("Frequency= %d MHz\n", (uint16_t) RFM95_FREQUENCY);
printf("Power= %d\n", (uint8_t) RFM95_TXPOWER);
printf("Client Address= %d\n", CLIENT_ADDRESS);
printf("Server(This) Address= %d\n", SERVER_ADDRESS);
rf95.setTxPower(RFM95_TXPOWER, false);
rf95.setFrequency(RFM95_FREQUENCY);
rf95.setThisAddress(SERVER_ADDRESS);
rf95.setModemConfig(RH_RF95::Bw125Cr48Sf4096);
/* End Manager/Driver settings code */
/* Begin Datagram Server Code */
while(!flag)
{
if (rf95.available())
{
// Should be a message for us now
uint8_t buf[RH_RF95_MAX_MESSAGE_LEN];
uint8_t len = sizeof(buf);
if (rf95.recv(buf, &len))
{
#ifdef RFM95_LED
gpioWrite(RFM95_LED, PI_ON);
#endif
// RF95::printBuffer("request: ", buf, len);
Serial.print("got request: ");
Serial.println((char*)buf);
// Serial.print("RSSI: ");
// Serial.println(rf95.lastRssi(), DEC);
//Send a reply
uint8_t data[] = "And hello back to you";
rf95.send(data, sizeof(data));
rf95.waitPacketSent();
Serial.println("Sent a reply");
#ifdef RFM95_LED
gpioWrite(RFM95_LED, PI_OFF);
#endif
}
else
{
Serial.println("recv failed");
}
}
}
/* End Datagram Server Code */
printf( "\nrf95_server Tester Ending\n" );
gpioTerminate();
return 0;
}
void sig_handler(int sig)
{
flag=1;
}

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examples/raspi/rf95/rf95_server/rf95_server2.cpp Normal file
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// rf95_server.cpp
// -*- mode: C++ -*-
// Example app showing how to create a simple messageing server
// with the RH_RF95 class. RH_RF95 class does not provide for addressing or
// reliability, so you should only use RH_RF95 if you do not need the higher
// level messaging abilities.
// It is designed to work with the other example rf95_client.
//
// Requires Pigpio GPIO library. Install by downloading and compiling from
// http://abyz.me.uk/rpi/pigpio/, or install via command line with
// "sudo apt install pigpio". To use, run "make" at the command line in
// the folder where this source code resides. Then execute application with
// sudo ./rf95_server.
// Tested on Raspberry Pi Zero and Zero W with LoRaWan/TTN RPI Zero Shield
// by ElectronicTricks. Although this application builds and executes on
// Raspberry Pi 3, there seems to be missed messages and hangs.
// Strategically adding delays does seem to help in some cases.
//(9/20/2019) Contributed by Brody M. Based off rf22_server.pde.
// Raspberry Pi mods influenced by nrf24 example by Mike Poublon,
// and Charles-Henri Hallard (https://github.com/hallard/RadioHead)
#include <pigpio.h>
#include <stdio.h>
#include <signal.h>
#include <unistd.h>
#include <RH_RF95.h>
#include <help_functions.h>
//Function Definitions
void sig_handler(int sig);
#ifdef DRAGINO_GPS_HAT
pthread_mutex_t gps_data_mutex;
#include <gpsMT3339.h>
// Pin definitions for dragino gps hat
#define RFM95_CS_PIN 25 // Slave Select on GPIO25 so P1 connector pin #22
#define RFM95_IRQ_PIN 4 // IRQ on GPIO4 so P1 connector pin #7
#define RFM95_RESET_PIN 17 // Reset on GPIO17 so P1 connector pin #11
#undef RFM95_LED // Dragino Board as no LED to drive
#else
//Pin Definitions
#define RFM95_CS_PIN 8
#define RFM95_IRQ_PIN 25
#define RFM95_LED 4
#endif
//Client and Server Addresses
#define CLIENT_ADDRESS 1
#define SERVER_ADDRESS 2
//RFM95 Configuration
#ifdef EUROPE
#define RFM95_FREQUENCY 868.00
#else
#define RFM95_FREQUENCY 915.00
#endif
#define RFM95_TXPOWER 14
// Singleton instance of the radio driver
RH_RF95 rf95(RFM95_CS_PIN, RFM95_IRQ_PIN);
#ifdef DRAGINO_GPS_HAT
gps_MT3339 gps(GPS_DEVICE, &gps_data_mutex);
#endif
//Flag for Ctrl-C
int flag = 0;
//Main Function
int main (int argc, const char* argv[] )
{
if (gpioInitialise()<0)
{
printf( "\n\nRPI rf95_server startup Failed.\n" );
return 1;
}
gpioSetSignalFunc(2, sig_handler); //2 is SIGINT. Ctrl+C will cause signal.
printf( "\nRPI rf95_server startup OK.\n" );
printf( "\nRPI GPIO settings:\n" );
printf("CS-> GPIO %d\n", (uint8_t) RFM95_CS_PIN);
printf("IRQ-> GPIO %d\n", (uint8_t) RFM95_IRQ_PIN);
#ifdef RFM95_LED
gpioSetMode(RFM95_LED, PI_OUTPUT);
printf("LED-> GPIO %d\n", (uint8_t) RFM95_LED);
gpioWrite(RFM95_LED, PI_ON);
gpioDelay(500000);
gpioWrite(RFM95_LED, PI_OFF);
#endif
if (!rf95.init())
{
printf( "\n\nRF95 Driver Failed to initialize.\n\n" );
return 1;
}
/* Begin Manager/Driver settings code */
printf("\nRFM 95 Settings:\n");
printf("Frequency= %d MHz\n", (uint16_t) RFM95_FREQUENCY);
printf("Power= %d\n", (uint8_t) RFM95_TXPOWER);
printf("Client Address= %d\n", CLIENT_ADDRESS);
printf("Server(This) Address= %d\n", SERVER_ADDRESS);
rf95.setTxPower(RFM95_TXPOWER, false);
rf95.setFrequency(RFM95_FREQUENCY);
rf95.setThisAddress(SERVER_ADDRESS);
rf95.setModemConfig(RH_RF95::Bw125Cr48Sf4096);
/* End Manager/Driver settings code */
rf95.printRegisters();
/* Begin Datagram Server Code */
// start gps of dragino gps hat
#ifdef DRAGINO_GPS_HAT
pthread_t read_gps_thread;
int iret;
pthread_mutex_init(&gps_data_mutex,NULL);
iret = pthread_create( &read_gps_thread, NULL, ((void* (*)(void*))&gps_MT3339::read_gps), &gps);
if (iret != 0)
printf("\nCould not start thread to read gps data\n");
#endif
print_scheduler();
/* Begin Datagram Server Code */
while(!flag)
{
if (rf95.available())
{
// Should be a message for us now
uint8_t buf[RH_RF95_MAX_MESSAGE_LEN];
uint8_t len = sizeof(buf);
if (rf95.recv(buf, &len))
{
#ifdef RFM95_LED
gpioWrite(RFM95_LED, PI_ON);
#endif
// RF95::printBuffer("request: ", buf, len);
printf("got request: \"%s\"\n", (char*)buf);
printf("RSSI: %d\n",rf95.lastRssi());
uint8_t data[50] = "And hello back to you";
//cut out sequence number from received message (format: "(...)") if in message
// and copy to outgoing message
char* temp1 = strchr((char*)buf,'(');
char* temp2 = strchr((char*)buf,')');
if ((temp1 != NULL) && (temp2 != NULL))
{
// if received message contains sequence number,
// reply with received sequence number
temp1++;
uint8_t wordlen = temp2 - temp1;
temp1[wordlen] = 0x00;
#ifndef DRAGINO_GPS_HAT
snprintf((char*)data+21,8,"(%5s)",temp1);
#else
// In Case of Dragino Lora/GPS hat add timestamp and gps position of server to reply
pthread_mutex_lock(&gps_data_mutex);
snprintf((char*)data,47,"R:(%5s):%10s,%10s,%11s",
temp1,gps.getTimestamp(),gps.getLatitude(),gps.getLongitude());
pthread_mutex_unlock(&gps_data_mutex);
#endif
}
//Send a reply including a trailing 0x00
rf95.send(data, strlen((char*)data)+1);
rf95.waitPacketSent();
printf("Sent a reply: \"%s\"\n",data);
#ifdef RFM95_LED
gpioWrite(RFM95_LED, PI_OFF);
#endif
}
else
{
Serial.println("recv failed");
}
}
}
/* End Datagram Server Code */
printf( "\nrf95_server Tester Ending\n" );
gpioTerminate();
return 0;
}
void sig_handler(int sig)
{
flag=1;
}