From 72c9c46d0c702c5d907f1b376c34725c6eda0e08 Mon Sep 17 00:00:00 2001 From: Tanner Collin Date: Fri, 10 Mar 2023 14:21:40 -0700 Subject: [PATCH] Initial commit --- rx/rx.ino | 94 ++++++++++++++++++++++++++++++++++++++++++++++++ tx/tx.ino | 105 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 199 insertions(+) create mode 100644 rx/rx.ino create mode 100644 tx/tx.ino diff --git a/rx/rx.ino b/rx/rx.ino new file mode 100644 index 0000000..793f4f2 --- /dev/null +++ b/rx/rx.ino @@ -0,0 +1,94 @@ +// Feather9x_RX +// -*- mode: C++ -*- +// Example sketch showing how to create a simple messaging client (receiver) +// 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 Feather9x_TX + +#include +#include + +#define RFM95_CS 8 +#define RFM95_RST 4 +#define RFM95_INT 3 + +// Change to 434.0 or other frequency, must match RX's freq! +#define RF95_FREQ 900.0 + +// Singleton instance of the radio driver +RH_RF95 rf95(RFM95_CS, RFM95_INT); + +// Blinky on receipt +#define LED 13 + +void setup() +{ + pinMode(LED, OUTPUT); + pinMode(RFM95_RST, OUTPUT); + digitalWrite(RFM95_RST, HIGH); + + Serial.begin(115200); + + delay(1000); + + Serial.println("Feather LoRa RX Test!"); + + // manual reset + digitalWrite(RFM95_RST, LOW); + delay(10); + digitalWrite(RFM95_RST, HIGH); + delay(10); + + while (!rf95.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); +} + +void loop() +{ + 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)) + { + digitalWrite(LED, HIGH); + RH_RF95::printBuffer("Received: ", buf, len); + Serial.print("Got: "); + 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"); + digitalWrite(LED, LOW); + } + else + { + Serial.println("Receive failed"); + } + } +} diff --git a/tx/tx.ino b/tx/tx.ino new file mode 100644 index 0000000..4cbb30b --- /dev/null +++ b/tx/tx.ino @@ -0,0 +1,105 @@ +// Feather9x_TX +// -*- mode: C++ -*- +// Example sketch showing how to create a simple messaging client (transmitter) +// 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 Feather9x_RX + +#include +#include + +#define RFM95_CS 8 +#define RFM95_RST 4 +#define RFM95_INT 3 + +// Change to 434.0 or other frequency, must match RX's freq! +#define RF95_FREQ 900.0 + +// Singleton instance of the radio driver +RH_RF95 rf95(RFM95_CS, RFM95_INT); + +void setup() +{ + pinMode(RFM95_RST, OUTPUT); + digitalWrite(RFM95_RST, HIGH); + + Serial.begin(115200); + + delay(1000); + + Serial.println("Feather LoRa TX Test!"); + + // manual reset + digitalWrite(RFM95_RST, LOW); + delay(10); + digitalWrite(RFM95_RST, HIGH); + delay(10); + + while (!rf95.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); +} + +int16_t packetnum = 0; // packet counter, we increment per xmission + +void loop() +{ + delay(1000); // Wait 1 second between transmits, could also 'sleep' here! + Serial.println("Transmitting..."); // Send a message to rf95_server + + char radiopacket[20] = "Hello World # "; + itoa(packetnum++, radiopacket+13, 10); + Serial.print("Sending "); Serial.println(radiopacket); + radiopacket[19] = 0; + + Serial.println("Sending..."); + delay(10); + rf95.send((uint8_t *)radiopacket, 20); + + Serial.println("Waiting for packet to complete..."); + delay(10); + rf95.waitPacketSent(); + // Now wait for a reply + uint8_t buf[RH_RF95_MAX_MESSAGE_LEN]; + uint8_t len = sizeof(buf); + + Serial.println("Waiting for reply..."); + if (rf95.waitAvailableTimeout(1000)) + { + // Should be a reply message for us now + if (rf95.recv(buf, &len)) + { + Serial.print("Got reply: "); + Serial.println((char*)buf); + Serial.print("RSSI: "); + Serial.println(rf95.lastRssi(), DEC); + } + else + { + Serial.println("Receive failed"); + } + } + else + { + Serial.println("No reply, is there a listener around?"); + } + +}