75 lines
2.4 KiB
C++
75 lines
2.4 KiB
C++
// stm32wlx_server.ino
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// -*- mode: C++ -*-
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// Example sketch showing how to create a simple messageing server
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// with the RH_SX126X class. RH_SX126X class does not provide for addressing or
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// reliability, so you should only use on its own RH_SX126X if you do not need the higher
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// level messaging abilities.
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// It is designed to work with the other example stm32wlx_client or rf95_client
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// (dont forget to make sure the madulation schemes and frequencies are the same).
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//
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// In order to use the Arduino IDE to program the Wio-E5, you must
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// install the stm32duino package using these instructions:
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// https://community.st.com/t5/stm32-mcus/stm32-arduino-stm32duino-tutorial/ta-p/49649
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// Tested with Wio-E5 mini. In Arduino, select:
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// Tools -> Board -> STM32 MCU based boards -> LoRa boards
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// Tools -> Board part number -> LoRa-E5 mini
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// Tools -> U(S)ART support -> Enabled (generic Serial)
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//
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// Program with eg ST-LINK V2 (a red USB dongle). See the instructions in RH_STM32WLx.h
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#include <RH_STM32WLx.h>
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// Single instance of the driver. The defaults will work for Seed WiO-E5 mini board, and other boards
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// equipped with Seeed LoRa-E5 modules, such as NUCLEO_WL55JC1
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RH_STM32WLx driver;
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void setup()
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{
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Serial.begin(9600);
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while (!Serial) ; // Wait for serial port to be available
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if (!driver.init())
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Serial.println("init failed");
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// Defaults after init are 915.0MHz, 13dBm, Bw = 125 kHz, Cr = 4/5, Sf = 128chips/symbol, CRC on
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// You can change the frequency:
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//driver.setFrequency(868.0);
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// You can change the modulation parameters with eg
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//driver.setModemConfig(RH_SX126x::LoRa_Bw125Cr45Sf2048);
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// You can change the power level in dBm (-9 to +22 on the Wio-E5 mini)
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// Default is 13dBm
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//driver.setTxPower(0);
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}
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void loop()
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{
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if (driver.available())
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{
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// Should be a message for us now
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uint8_t buf[RH_SX126x_MAX_MESSAGE_LEN];
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uint8_t len = sizeof(buf);
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if (driver.recv(buf, &len))
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{
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// RH_SX126X::printBuffer("request: ", buf, len);
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Serial.print("got request: ");
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Serial.println((char*)buf);
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Serial.print("RSSI: ");
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Serial.println(driver.lastRssi(), DEC);
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// Send a reply
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uint8_t data[] = "And hello back to you";
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driver.send(data, sizeof(data));
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driver.waitPacketSent();
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Serial.println("Sent a reply");
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}
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else
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{
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Serial.println("recv failed");
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}
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}
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}
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