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October 9, 2021 02:21
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| // node1 | |
| #include <SPI.h> //Serial Peripheral Interface | |
| #include <RH_RF95.h> | |
| #include <RHReliableDatagram.h> | |
| #include <Adafruit_GFX.h> | |
| #include <Adafruit_ILI9341.h> | |
| #define CLIENT_ADDRESS 1 | |
| #define SERVER_ADDRESS 5 | |
| #define RFM95_CS 8 | |
| #define RFM95_RST 4 | |
| #define RFM95_INT 7 | |
| // for TFT Screen | |
| #if defined (__AVR_ATmega32U4__) || defined(ARDUINO_SAMD_FEATHER_M0) || defined (__AVR_ATmega328P__) || \ | |
| defined(ARDUINO_SAMD_ZERO) || defined(__SAMD51__) || defined(__SAM3X8E__) || defined(ARDUINO_NRF52840_FEATHER) | |
| #define STMPE_CS 6 | |
| #define TFT_CS 9 | |
| #define TFT_DC 10 | |
| #define SD_CS 5 | |
| #endif | |
| // Pallete - Where you assign names to colors you like | |
| #define BACKCOLOR 0x0000 | |
| #define PRINTCOL 0x07E0 | |
| #define CHARBACK 0x0000 | |
| // Color definitions | |
| #define BLACK 0x0000 | |
| #define BLUE 0x001F | |
| #define RED 0xF800 | |
| #define GREEN 0x07E0 | |
| #define CYAN 0x07FF | |
| #define MAGENTA 0xF81F | |
| #define YELLOW 0xFFE0 | |
| #define WHITE 0xFFFF | |
| // Change to 434.0 or other frequency, must match RX's freq! | |
| #define RF95_FREQ 915.0 | |
| Adafruit_ILI9341 tft = Adafruit_ILI9341(TFT_CS, TFT_DC); | |
| // Singleton instance of the radio driver | |
| RH_RF95 rf95(RFM95_CS, RFM95_INT); | |
| RHReliableDatagram manager(rf95, CLIENT_ADDRESS); | |
| void setup() | |
| { | |
| pinMode(RFM95_RST, OUTPUT); | |
| digitalWrite(RFM95_RST, HIGH); | |
| Serial.begin(9600); | |
| delay(100); | |
| Serial.println("Feather LoRa TX Test!"); | |
| // manual reset | |
| digitalWrite(RFM95_RST, LOW); | |
| delay(10); | |
| digitalWrite(RFM95_RST, HIGH); | |
| delay(10); | |
| while (!manager.init()) | |
| { | |
| Serial.println("LoRa radio init failed"); | |
| Serial.println("Uncomment '#define SERIAL_DEBUG' in RH_RF95.cpp for detailed debug info"); | |
| while (1); | |
| } | |
| Serial.println("LoRa radio init OK!"); | |
| // Defaults after init are 434.0MHz, modulation GFSK_Rb250Fd250, +13dbM | |
| if (!rf95.setFrequency(RF95_FREQ)) | |
| { | |
| Serial.println("setFrequency failed"); | |
| while (1); | |
| } | |
| Serial.print("Set Freq to: "); Serial.println(RF95_FREQ); | |
| // Defaults after init are 434.0MHz, 13dBm, Bw = 125 kHz, Cr = 4/5, Sf = 128chips/symbol, CRC on | |
| // The default transmitter power is 13dBm, using PA_BOOST. | |
| // If you are using RFM95/96/97/98 modules which uses the PA_BOOST transmitter pin, then | |
| // you can set transmitter powers from 5 to 23 dBm: | |
| rf95.setTxPower(23, false); | |
| // setup gfx | |
| tft.begin(); | |
| tft.fillScreen(BACKCOLOR); | |
| tft.setCursor(0,0); | |
| tft.setTextWrap(true); | |
| tft.setTextColor(PRINTCOL,CHARBACK); | |
| tft.setTextSize(3); | |
| } | |
| int16_t packetnum = 1; // packet counter, we increment per xmission | |
| char radiopacket[30] = "node1 "; | |
| //uint8_t buf[RH_RF95_MAX_MESSAGE_LEN]; | |
| char buf[RH_RF95_MAX_MESSAGE_LEN]; | |
| void loop() | |
| { | |
| radiopacket[29] = NULL; | |
| delay(1000); // Wait 2.5 second between transmits, could also 'sleep' here! | |
| Serial.println("Transmitting..."); // Send a message to rf95_server | |
| itoa( packetnum++, radiopacket+10, 10);//in to array | |
| Serial.print("Sending "); | |
| Serial.println(radiopacket); | |
| Serial.println("Sending..."); | |
| delay(10); | |
| manager.sendtoWait(radiopacket, sizeof(radiopacket), SERVER_ADDRESS); | |
| Serial.println("Waiting for packet to complete..."); | |
| delay(10); | |
| manager.waitPacketSent(); | |
| // Now wait for a reply | |
| Serial.println("Waiting for reply..."); | |
| uint8_t len = sizeof(buf); | |
| uint8_t from; | |
| if (rf95.waitAvailableTimeout(2000)) // needed to increase timeout | |
| { | |
| // Should be a reply message for us now | |
| //if (manager.recvfromAckTimeout(buf, &len, 2000, &from)) | |
| if (manager.recvfromAckTimeout(buf, &len, &from)) | |
| { | |
| RH_RF95::printBuffer("Received: ", buf, len); | |
| Serial.println(": "); | |
| Serial.print("Got reply from : 0x"); | |
| Serial.print( from, HEX); | |
| Serial.print(": "); | |
| Serial.println((char*)buf); | |
| Serial.print("RSSI: "); | |
| Serial.println(rf95.lastRssi(), DEC); | |
| // gfx | |
| tft.setCursor(0,0); | |
| tft.print("RSSI: "); tft.print(rf95.lastRssi(), DEC); | |
| tft.println(""); | |
| tft.print("freq: "); | |
| tft.println(RF95_FREQ); | |
| tft.print("SERVER: "); tft.print(SERVER_ADDRESS); | |
| tft.println(""); | |
| tft.print("from: "); tft.print(from, HEX); | |
| tft.println(""); | |
| tft.println((char*)buf); | |
| } | |
| else | |
| { | |
| Serial.println("Receive failed"); | |
| } | |
| } | |
| else | |
| { | |
| Serial.println("No reply, is there a listener around?"); | |
| } | |
| } |
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