99 lines
2.4 KiB
C++
99 lines
2.4 KiB
C++
// Only supports SX1276/SX1278
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#include <LoRa.h>
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#include "LoRaBoards.h"
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#ifndef CONFIG_RADIO_FREQ
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#define CONFIG_RADIO_FREQ 868.0
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#endif
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#ifndef CONFIG_RADIO_OUTPUT_POWER
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#define CONFIG_RADIO_OUTPUT_POWER 17
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#endif
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#ifndef CONFIG_RADIO_BW
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#define CONFIG_RADIO_BW 125.0
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#endif
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#if !defined(USING_SX1276) && !defined(USING_SX1278)
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#error "LoRa example is only allowed to run SX1276/78. For other RF models, please run examples/RadioLibExamples
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#endif
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void setup()
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{
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setupBoards();
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// When the power is turned on, a delay is required.
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delay(1500);
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Serial.println("LoRa Receiver");
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#ifdef RADIO_TCXO_ENABLE
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pinMode(RADIO_TCXO_ENABLE, OUTPUT);
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digitalWrite(RADIO_TCXO_ENABLE, HIGH);
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#endif
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#ifdef RADIO_CTRL
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Serial.println("Turn on LAN, Enter Rx mode.");
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/*
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* BPF LoRa LAN Control ,set HIGH turn on LAN ,RX Mode
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* */
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digitalWrite(RADIO_CTRL, HIGH);
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#endif /*RADIO_CTRL*/
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LoRa.setPins(RADIO_CS_PIN, RADIO_RST_PIN, RADIO_DIO0_PIN);
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if (!LoRa.begin(CONFIG_RADIO_FREQ * 1000000)) {
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Serial.println("Starting LoRa failed!");
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while (1);
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}
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LoRa.setTxPower(CONFIG_RADIO_OUTPUT_POWER);
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LoRa.setSignalBandwidth(CONFIG_RADIO_BW * 1000);
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LoRa.setSpreadingFactor(10);
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LoRa.setPreambleLength(16);
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LoRa.setSyncWord(0xAB);
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LoRa.disableCrc();
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LoRa.disableInvertIQ();
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LoRa.setCodingRate4(7);
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// put the radio into receive mode
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LoRa.receive();
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}
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void loop()
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{
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// try to parse packet
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int packetSize = LoRa.parsePacket();
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if (packetSize) {
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// received a packet
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Serial.print("Received packet '");
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String recv = "";
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// read packet
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while (LoRa.available()) {
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recv += (char)LoRa.read();
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}
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Serial.println(recv);
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// print RSSI of packet
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Serial.print("' with RSSI ");
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Serial.println(LoRa.packetRssi());
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if (u8g2) {
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u8g2->clearBuffer();
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char buf[256];
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u8g2->drawStr(0, 12, "Received OK!");
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u8g2->drawStr(0, 26, recv.c_str());
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snprintf(buf, sizeof(buf), "RSSI:%i", LoRa.packetRssi());
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u8g2->drawStr(0, 40, buf);
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snprintf(buf, sizeof(buf), "SNR:%.1f", LoRa.packetSnr());
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u8g2->drawStr(0, 56, buf);
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u8g2->sendBuffer();
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}
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}
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}
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