bump to 1.6.0 (forgot the zero!)

License explanation

Examples/TestSetup/TestSetup.ino

@@ -0,0 +1,159 @@
+// Sample RFM69 sketch, with optional encryption, Automatic Transmission Control
+// This will only init the radio module and print the values of all getter functions
+// No data is transmitted or received. The device will only blink the onboard LED.
+// **********************************************************************************
+// Copyright Felix Rusu 2025, http://www.LowPowerLab.com/contact
+// **********************************************************************************
+// License
+// **********************************************************************************
+// This program is free software; you can redistribute it
+// and/or modify it under the terms of the GNU General
+// Public License as published by the Free Software
+// Foundation; either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will
+// be useful, but WITHOUT ANY WARRANTY; without even the
+// implied warranty of MERCHANTABILITY or FITNESS FOR A
+// PARTICULAR PURPOSE. See the GNU General Public
+// License for more details.
+//
+// Licence can be viewed at
+// http://www.gnu.org/licenses/gpl-3.0.txt
+//
+// Please maintain this license information along with authorship
+// and copyright notices in any redistribution of this code
+// **********************************************************************************
+#include <RFM69.h>         //get it here: https://www.github.com/lowpowerlab/rfm69
+#include <RFM69_ATC.h>     //get it here: https://www.github.com/lowpowerlab/rfm69
+
+//*********************************************************************************************
+//************ IMPORTANT SETTINGS - YOU MUST CHANGE/CONFIGURE TO FIT YOUR HARDWARE ************
+//*********************************************************************************************
+// Address IDs are 10bit, meaning usable ID range is 1..1023
+// Address 0 is special (broadcast), messages to address 0 are received by all *listening* nodes (ie. active RX mode)
+// Gateway ID should be kept at ID=1 for simplicity, although this is not a hard constraint
+//*********************************************************************************************
+#define NODEID        1    // keep UNIQUE for each node on same network
+#define NETWORKID     100  // keep IDENTICAL on all nodes that talk to each other
+
+//*********************************************************************************************
+// Frequency should be set to match the radio module hardware tuned frequency,
+// otherwise if say a "433mhz" module is set to work at 915, it will work but very badly.
+// Moteinos and RF modules from LowPowerLab are marked with a colored dot to help identify their tuned frequency band,
+// see this link for details: https://lowpowerlab.com/guide/moteino/transceivers/
+// The below examples are predefined "center" frequencies for the radio's tuned "ISM frequency band".
+// You can always set the frequency anywhere in the "frequency band", ex. the 915mhz ISM band is 902..928mhz.
+//*********************************************************************************************
+//#define FREQUENCY   RF69_433MHZ
+//#define FREQUENCY   RF69_868MHZ
+#define FREQUENCY     RF69_915MHZ
+//#define FREQUENCY_EXACT 916000000 // you may define an exact frequency/channel in Hz
+#define ENCRYPTKEY    "sampleEncryptKey" //exactly the same 16 characters/bytes on all nodes!
+#define IS_RFM69HW_HCW  //uncomment only for RFM69HW/HCW! Leave out if you have RFM69W/CW!
+//*********************************************************************************************
+//Auto Transmission Control - dials down transmit power to save battery
+//Usually you do not need to always transmit at max output power
+//By reducing TX power even a little you save a significant amount of battery power
+//This setting enables this gateway to work with remote nodes that have ATC enabled to
+//dial their power down to only the required level (ATC_RSSI)
+#define ENABLE_ATC    //comment out this line to disable AUTO TRANSMISSION CONTROL
+#define ATC_RSSI      -80
+//*********************************************************************************************
+#define SERIAL_BAUD    115200
+#define DEBUG(input)   Serial.print(input)
+#define DEBUGln(input) Serial.println(input)
+
+#define BLINK_INTERVAL 1000      //< [ms] LED heartbeat blink interval
+
+uint32_t last_blink = 0;
+
+#ifdef ENABLE_ATC
+  RFM69_ATC radio;
+#else
+  RFM69 radio;
+#endif
+
+void setup() {
+  Serial.begin(SERIAL_BAUD);
+  pinMode(LED_BUILTIN, OUTPUT);
+
+  DEBUGln("START SETUP TEST!");
+
+  if (!radio.initialize(FREQUENCY,NODEID,NETWORKID))
+    DEBUGln("radio.init() FAIL");
+  else
+    DEBUGln("radio.init() SUCCESS");
+
+#ifdef IS_RFM69HW_HCW
+  radio.setHighPower(); // must include this only for RFM69HW/HCW!
+#endif
+
+#ifdef ENCRYPTKEY
+  radio.encrypt(ENCRYPTKEY);
+#endif
+
+#ifdef FREQUENCY_EXACT
+  radio.setFrequency(FREQUENCY_EXACT); // set frequency to some custom frequency
+#endif
+
+// Auto Transmission Control - dials down transmit power to save battery (-100 is the noise floor, -90 is still pretty good)
+// For indoor nodes that are pretty static and at pretty stable temperatures (like a MotionMote) -90dBm is quite safe
+// For more variable nodes that can expect to move or experience larger temp drifts a lower margin like -70 to -80 would probably be better
+// Always test your ATC mote in the edge cases in your own environment to ensure ATC will perform as you expect
+#ifdef ENABLE_ATC
+  radio.enableAutoPower(ATC_RSSI);
+#endif
+
+  test_config();
+  radio.readAllRegs();
+}
+
+void loop() {
+  uint32_t now = millis();
+
+  if (now > (last_blink + BLINK_INTERVAL)) {
+    last_blink = now;
+    digitalWrite(LED_BUILTIN, !digitalRead(LED_BUILTIN));
+  }
+}
+
+void test_config() {
+  /*
+  RFM version: 36
+  Node address: 2
+  Node network: 100
+  Frequency: 433MHz
+  Frequency deviation: 49987Hz
+  Bit rate: 55555bits/sec
+  Spy mode active: no
+  HCW module: yes
+  TX Power 20dBM, 100.00mW
+  Temperature: 24 Celsius
+  Sync active: yes
+  Sync size: 1
+  CRC on: yes
+  AES on: no
+  Target RSSI:-80
+  */
+  DEBUG("RFM version: "); DEBUGln(radio.getVersion());
+  DEBUG("Node address: "); DEBUGln(radio.getAddress());
+  DEBUG("Node network: "); DEBUGln(radio.getNetwork());
+  DEBUG("Frequency: "); DEBUG(radio.getFrequency()/1000000L); DEBUGln("MHz");
+  DEBUG("Frequency deviation: "); DEBUG(radio.getFrequencyDeviation()); DEBUGln("Hz");
+  DEBUG("Bit rate: "); DEBUG(radio.getBitRate()); DEBUGln("bits/sec");
+  DEBUG("Spy mode active: "); DEBUGln(radio.getSpyMode()==1 ? "yes":"no");
+  DEBUG("HCW module: "); DEBUGln(radio.isHighPower()==1 ? "yes":"no");
+
+  uint8_t tx_power = radio.getPowerLevel();
+  DEBUG("TX Power "); DEBUG(tx_power); DEBUG("dBM, "); DEBUG(radio.dBm_to_mW(tx_power)); DEBUGln("mW");
+  DEBUG("Temperature: "); DEBUG(radio.readTemperature()); DEBUGln(" Celsius");
+  DEBUG("Sync active: "); DEBUGln(radio.isSyncOn()==1 ? "yes":"no");
+  DEBUG("Sync size: "); DEBUGln(radio.getSyncSize());
+  DEBUG("CRC on: "); DEBUGln(radio.isCrcOn()==1 ? "yes":"no");
+  DEBUG("AES on: "); DEBUGln(radio.isAesOn()==1 ? "yes":"no");
+
+#ifdef ENABLE_ATC
+  DEBUG("Target RSSI by ATC: "); DEBUGln(radio.getTargetRssi());
+#endif
+}

Examples/TxPowerTest_Transmitter/TxPowerTest_Transmitter.ino

@@ -10,6 +10,7 @@
 // **********************************************************************************
 #include <RFM69.h>      //get it here: https://www.github.com/lowpowerlab/rfm69
 #include <RFM69_ATC.h>
+#include <RFM69registers.h>
 
 #define NODEID        123   //must be unique for each node on same network (range up to 254, 255 is used for broadcast)
 #define NETWORKID     100  //the same on all nodes that talk to each other (range up to 255)
@@ -17,7 +18,7 @@
 //Match frequency to the hardware version of the radio on your Moteino (uncomment one):
 //#define FREQUENCY     RF69_433MHZ
 #define FREQUENCY     RF69_915MHZ
-#define FREQUENCY_EXACT 915500000
+#define FREQUENCY_EXACT 910000000
 #define IS_RFM69HW_HCW   //uncomment only for RFM69HCW! Leave out if you have RFM69CW!
 #define ENABLE_ATC    //comment out this line to disable AUTO TRANSMISSION CONTROL
 #define ATC_RSSI -90
@@ -27,6 +28,19 @@
 #define DEBUGln(input) Serial.println(input)
 #define DEBUGHEX(input, param) Serial.print(input, param)
 
+//assert button (to trigger transmission)
+#ifdef RFGATEWAY
+  #define ASSERT_BTN            44
+#else
+  #define ASSERT_BTN            A0
+#endif
+
+#define TX_MODE_PACKET        1
+#define TX_MODE_PACKET_BURST  2
+#define TX_MODE_CONSTANT      3
+#define TX_PACKET_PAYLOAD "PACKET WITH SOME DATA"
+#define TX_MODE    TX_MODE_CONSTANT
+
 #ifdef ENABLE_ATC
   RFM69_ATC radio/*(10,11) FOR M0 radio add-on board*/;  //#if defined (__AVR_ATmega32U4__) RFM69_ATC radio(8,7);
 #else
@@ -35,12 +49,17 @@
 
 int MODE;
 
+void printHelp() {
+  DEBUGln("Use:\nt to toggle transmission on/off");
+  DEBUGln("+/- to adjust power in _powerLevel steps");
+  DEBUGln("<,> to adjust power in dBm");
+  DEBUGln("? to print this command reference\n");
+}
+
 void setup() {
   Serial.begin(SERIAL_BAUD);
   pinMode(LED_BUILTIN, OUTPUT);
-  
-  pinMode(0, OUTPUT); digitalWrite(0, LOW);
-  pinMode(A0, INPUT_PULLUP);
+  pinMode(ASSERT_BTN, INPUT_PULLUP);
 
   DEBUGln("START RFM69_NODE_TX_TEST!");
 
@@ -49,6 +68,9 @@ void setup() {
   else
     DEBUGln("radio.init() SUCCESS");
 
+  radio.writeReg(REG_FDEVMSB, RF_FDEVMSB_50000);
+  radio.writeReg(REG_FDEVLSB, RF_FDEVLSB_50000);
+
 #ifdef IS_RFM69HW_HCW
   radio.setHighPower(); //only for RFM69HW/HCW!
 #endif
@@ -61,12 +83,12 @@ void setup() {
   radio.enableAutoPower(ATC_RSSI);
 #endif
 
+  delay(5000);
   char buff[50];
-  sprintf(buff, "\nTransmitting at %lu Mhz...", radio.getFrequency()/1000000L);
+  sprintf(buff, "\nTransmitting at %lu Hz...", radio.getFrequency());
   DEBUGln(buff);
 
-  DEBUGln("Use:\n+,- to adjust power in _powerLevel steps");
-  DEBUGln("<,> to adjust power in dBm");
+  printHelp();
 
 #ifdef ENABLE_ATC
   DEBUGln("RFM69_ATC Enabled (Auto Transmission Control)\n");
@@ -111,15 +133,26 @@ void loop() {
       if (MODE == RF69_MODE_TX) {
         MODE = RF69_MODE_SLEEP;
         DEBUG("RADIO_MODE = 0/SLEEP; _powerLevel=");DEBUGln(radio.getPowerLevel());
-      }
-      else {
+      } else {
         MODE = RF69_MODE_TX;
         DEBUG("RADIO_MODE = 4/TX;    _powerLevel=");DEBUGln(radio.getPowerLevel());
       }
     }
+    if (input=='?') printHelp();
   }
-  delay(200);
+  delay(100);
   if (MODE == RF69_MODE_TX) radio.setMode(MODE);
-  else if (digitalRead(A0)==LOW) radio.setMode(RF69_MODE_TX);
+  else if (digitalRead(ASSERT_BTN)==LOW) {
+    if (TX_MODE == TX_MODE_PACKET) {
+      DEBUGln("Sending 1 PACKET to node 88");
+      radio.send(88, TX_PACKET_PAYLOAD, strlen(TX_PACKET_PAYLOAD));
+    } else if (TX_MODE == TX_MODE_PACKET_BURST) {
+      DEBUGln("Sending RETRY PACKET to node 88");
+      radio.sendWithRetry(88, TX_PACKET_PAYLOAD, strlen(TX_PACKET_PAYLOAD));
+    } else if (TX_MODE == TX_MODE_CONSTANT) {
+      DEBUGln("Modulating constant carrier");
+      radio.setMode(TX_MODE);
+    }
+  }
   else radio.setMode(RF69_MODE_SLEEP);
 }

README.md

@@ -13,7 +13,11 @@ RFM69 library for RFM69W, RFM69HW, RFM69CW, RFM69HCW (semtech SX1231, SX1231H)
 The latest examples, new features and bug fixes are found in the [original repository](https://github.com/LowPowerLab/RFM69) of this library.
 
 ## License
-GPL 3.0, please see the [License.txt](https://github.com/LowPowerLab/RFM69/blob/master/License.txt) file for details. Be sure to include the same license with any fork or redistribution of this library.
+The default license is GPL 3.0, please see the [License.txt](https://github.com/LowPowerLab/RFM69/blob/master/License.txt) file for details. Be sure to include the same license with any fork or redistribution of this library.
+<br/>
+You are free to use the library for personal or commercial purposes but you must adhere to its copyleft requirements. This means that any modified or derivative work you distribute must also be licensed under GPL, and you must provide the source code to recipients.
+<br/>
+**For any other custom licensing arrangements where these terms are not acceptable, you must contact the [author directly]([url](https://github.com/LowPowerLab)) or use the [contact form through LowPowerLab.com](lowpowerlab.com/contact).**
 
 ## Features
 - easy to use API with a few simple functions for basic usage

RFM69.cpp

@@ -68,12 +68,12 @@ bool RFM69::initialize(uint8_t freqBand, uint16_t nodeID, uint8_t networkID) {
     /* 0x02 */ { REG_DATAMODUL, RF_DATAMODUL_DATAMODE_PACKET | RF_DATAMODUL_MODULATIONTYPE_FSK | RF_DATAMODUL_MODULATIONSHAPING_00 }, // no shaping
     /* 0x03 */ { REG_BITRATEMSB, RF_BITRATEMSB_55555}, // default: 4.8 KBPS
     /* 0x04 */ { REG_BITRATELSB, RF_BITRATELSB_55555},
-    /* 0x05 */ { REG_FDEVMSB, RF_FDEVMSB_50000}, // default: 5KHz, (FDEV + BitRate / 2 <= 500KHz)
+    /* 0x05 */ { REG_FDEVMSB, RF_FDEVMSB_50000}, // default: 5KHz, (FDEV+(BitRate/2)<=500KHz)
     /* 0x06 */ { REG_FDEVLSB, RF_FDEVLSB_50000},
 
-    /* 0x07 */ { REG_FRFMSB, (uint8_t) (freqBand==RF69_315MHZ ? RF_FRFMSB_315 : (freqBand==RF69_433MHZ ? RF_FRFMSB_433 : (freqBand==RF69_868MHZ ? RF_FRFMSB_868 : RF_FRFMSB_915))) },
-    /* 0x08 */ { REG_FRFMID, (uint8_t) (freqBand==RF69_315MHZ ? RF_FRFMID_315 : (freqBand==RF69_433MHZ ? RF_FRFMID_433 : (freqBand==RF69_868MHZ ? RF_FRFMID_868 : RF_FRFMID_915))) },
-    /* 0x09 */ { REG_FRFLSB, (uint8_t) (freqBand==RF69_315MHZ ? RF_FRFLSB_315 : (freqBand==RF69_433MHZ ? RF_FRFLSB_433 : (freqBand==RF69_868MHZ ? RF_FRFLSB_868 : RF_FRFLSB_915))) },
+    /* 0x07 */ { REG_FRFMSB, (uint8_t) (freqBand==RF69_315MHZ ? RF_FRFMSB_315 : (freqBand==RF69_433MHZ ? RF_FRFMSB_433_92 : (freqBand==RF69_868MHZ ? RF_FRFMSB_868 : RF_FRFMSB_915))) },
+    /* 0x08 */ { REG_FRFMID, (uint8_t) (freqBand==RF69_315MHZ ? RF_FRFMID_315 : (freqBand==RF69_433MHZ ? RF_FRFMID_433_92 : (freqBand==RF69_868MHZ ? RF_FRFMID_868 : RF_FRFMID_915))) },
+    /* 0x09 */ { REG_FRFLSB, (uint8_t) (freqBand==RF69_315MHZ ? RF_FRFLSB_315 : (freqBand==RF69_433MHZ ? RF_FRFLSB_433_92 : (freqBand==RF69_868MHZ ? RF_FRFLSB_868 : RF_FRFLSB_915))) },
 
     // looks like PA1 and PA2 are not implemented on RFM69W/CW, hence the max output power is 13dBm
     // +17dBm and +20dBm are possible on RFM69HW
@@ -140,14 +140,18 @@ bool RFM69::initialize(uint8_t freqBand, uint16_t nodeID, uint8_t networkID) {
   attachInterrupt(_interruptNum, RFM69::isr0, RISING);
 
   _address = nodeID;
+  _networkID = networkID;
 #if defined(RF69_LISTENMODE_ENABLE)
   selfPointer = this;
   _freqBand = freqBand;
-  _networkID = networkID;
 #endif
   return true;
 }
 
+uint8_t RFM69::getVersion() {
+  return readReg(REG_VERSION);
+}
+
 // return the frequency (in Hz)
 uint32_t RFM69::getFrequency() {
   return RF69_FSTEP * (((uint32_t) readReg(REG_FRFMSB) << 16) + ((uint16_t) readReg(REG_FRFMID) << 8) + readReg(REG_FRFLSB));
@@ -169,6 +173,15 @@ void RFM69::setFrequency(uint32_t freqHz) {
   setMode(oldMode);
 }
 
+// return the frequency deviation (in Hz)
+uint32_t RFM69::getFrequencyDeviation() {
+return RF69_FSTEP * ((readReg(REG_FDEVMSB) << 8) | readReg(REG_FDEVLSB));
+}
+
+uint32_t RFM69::getBitRate() {
+  return RF69_FXOSC / ((readReg(REG_BITRATEMSB) << 8) | readReg(REG_BITRATELSB));
+}
+
 void RFM69::setMode(uint8_t newMode) {
   if (newMode == _mode)
     return;
@@ -210,14 +223,23 @@ void RFM69::sleep() {
 // set this node's address
 void RFM69::setAddress(uint16_t addr) {
   _address = addr;
-  writeReg(REG_NODEADRS, _address); //unused in packet mode
+  writeReg(REG_NODEADRS, _address); // unused in packet mode
+}
+
+uint16_t RFM69::getAddress() {
+  return _address;
 }
 
 // set this node's network id
 void RFM69::setNetwork(uint8_t networkID) {
+  _networkID = networkID;
   writeReg(REG_SYNCVALUE2, networkID);
 }
 
+uint8_t RFM69::getNetwork() {
+  return _networkID;
+}
+
 // set user's ISR callback
 void RFM69::setIsrCallback(void (*callback)()) { 
   _isrCallback = callback;
@@ -263,6 +285,11 @@ void RFM69::setPowerLevel(uint8_t powerLevel) {
   writeReg(REG_PALEVEL, PA_SETTING | powerLevel);
 }
 
+uint8_t RFM69::getOutputPower() {
+  // _RegisterBits(_REG_PA_LEVEL, offset=0, bits=5)
+  return readReg(REG_PALEVEL) & 0x1F;
+}
+
 // return stored _powerLevel
 uint8_t RFM69::getPowerLevel() { return _powerLevel; }
 
@@ -287,6 +314,10 @@ int8_t RFM69::setPowerDBm(int8_t dBm) {
   return dBm;
 }
 
+double RFM69::dBm_to_mW(uint8_t dBm) {
+  return pow(10, (dBm / 10.0));
+}
+
 bool RFM69::canSend() {
   if (_mode == RF69_MODE_RX && PAYLOADLEN == 0 && readRSSI() < CSMA_LIMIT) { // if signal stronger than -100dBm is detected assume channel activity
     setMode(RF69_MODE_STANDBY);
@@ -568,6 +599,26 @@ void RFM69::spyMode(bool onOff) {
   //writeReg(REG_PACKETCONFIG1, (readReg(REG_PACKETCONFIG1) & 0xF9) | (onOff ? RF_PACKET1_ADRSFILTERING_OFF : RF_PACKET1_ADRSFILTERING_NODEBROADCAST));
 }
 
+bool RFM69::getSpyMode() {
+  return _spyMode;
+}
+
+bool RFM69::isSyncOn() {
+  return readReg(REG_SYNCCONFIG) >> 7;
+}
+
+uint8_t RFM69::getSyncSize() {
+  return (readReg(REG_SYNCCONFIG) & 0b00111000) >> 3;
+}
+
+bool RFM69::isCrcOn() {
+  return (readReg(REG_PACKETCONFIG1) & 0b00010000) >> 4;
+}
+
+bool RFM69::isAesOn() {
+  return readReg(REG_PACKETCONFIG2) & 0b00000001;
+}
+
 // for RFM69 HW/HCW only: you must call setHighPower(true) after initialize() or else transmission won't work
 void RFM69::setHighPower(bool _isRFM69HW_HCW) {
   _isRFM69HW = _isRFM69HW_HCW;
@@ -575,6 +626,10 @@ void RFM69::setHighPower(bool _isRFM69HW_HCW) {
   setPowerLevel(_powerLevel);
 }
 
+bool RFM69::isHighPower() {
+ return _isRFM69HW;
+}
+
 // internal function - for HW/HCW only:
 // enables HiPower for 18-20dBm output
 // should only be used with PA1+PA2

RFM69.h

@@ -163,6 +163,7 @@
 #define RF69_BROADCAST_ADDR     0
 #define RF69_CSMA_LIMIT_MS      1000
 #define RF69_TX_LIMIT_MS        1000
+#define RF69_FXOSC              32000000L
 #define RF69_FSTEP              61.03515625 // == FXOSC / 2^19 = 32MHz / 2^19 (p13 in datasheet)
 
 // TWS: define CTLbyte bits
@@ -201,7 +202,10 @@ class RFM69 {
     RFM69(uint8_t slaveSelectPin=RF69_SPI_CS, uint8_t interruptPin=RF69_IRQ_PIN, bool isRFM69HW_HCW=false, SPIClass *spi=nullptr);
 
     bool initialize(uint8_t freqBand, uint16_t ID, uint8_t networkID=1);
+    uint8_t getVersion();
+    uint16_t getAddress();
     void setAddress(uint16_t addr);
+    uint8_t getNetwork();
     void setNetwork(uint8_t networkID);
     void setIsrCallback(void (*callback)());
     virtual bool canSend();
@@ -213,17 +217,26 @@ class RFM69 {
     virtual void sendACK(const void* buffer = "", uint8_t bufferSize=0);
     uint32_t getFrequency();
     void setFrequency(uint32_t freqHz);
+    uint32_t getFrequencyDeviation();
+    uint32_t getBitRate();
     void encrypt(const char* key);
     void setCS(uint8_t newSPISlaveSelect);
     bool setIrq(uint8_t newIRQPin);
     int16_t readRSSI(bool forceTrigger=false); // *current* signal strength indicator; e.g. < -90dBm says the frequency channel is free + ready to transmit
+    bool getSpyMode();
     void spyMode(bool onOff=true);
-    //void promiscuous(bool onOff=true); //replaced with spyMode()
+    bool isSyncOn();
+    uint8_t getSyncSize();
+    bool isCrcOn();
+    bool isAesOn();
+    //void promiscuous(bool onOff=true); // replaced with spyMode()
     virtual void setHighPower(bool _isRFM69HW_HCW=true); // has to be called after initialize() for RFM69 HW/HCW
+    bool isHighPower();
+    virtual uint8_t getPowerLevel(); // get powerLevel
     virtual void setPowerLevel(uint8_t level); // reduce/increase transmit power level
     virtual int8_t setPowerDBm(int8_t dBm); // reduce/increase transmit power level, in dBm
-
-    virtual uint8_t getPowerLevel(); // get powerLevel	
+    double dBm_to_mW(uint8_t dBm); // convert dBm to mW
+    uint8_t getOutputPower();
     void sleep();
     uint8_t readTemperature(uint8_t calFactor=0); // get CMOS temperature (8bit)
     void rcCalibration(); // calibrate the internal RC oscillator for use in wide temperature variations - see datasheet section [4.3.5. RC Timer Accuracy]
@@ -258,6 +271,7 @@ class RFM69 {
     uint8_t _interruptPin;
     uint8_t _interruptNum;
     uint16_t _address;
+    uint8_t _networkID;
     bool _spyMode;
     uint8_t _powerLevel;
     bool _isRFM69HW;
@@ -319,7 +333,6 @@ class RFM69 {
     // Save these so we can reinitialize the radio after sending a burst
     // or exiting listen mode.
     uint8_t _freqBand;
-    uint8_t _networkID;
     uint8_t _rxListenCoef;
     uint8_t _rxListenResolution;
     uint8_t _idleListenCoef;

RFM69_ATC.cpp

@@ -174,6 +174,10 @@ void  RFM69_ATC::enableAutoPower(int16_t targetRSSI){    // TomWS1: New method t
   _targetRSSI = targetRSSI;         // no logic here, just set the value (if non-zero, then enabled), caller's responsibility to use a reasonable value
 }
 
+int16_t RFM69_ATC::getTargetRssi() {
+  return _targetRSSI;
+}
+
 //=============================================================================
 // getAckRSSI() - returns the RSSI value ack'd by the far end.
 //=============================================================================

RFM69_ATC.h

@@ -44,6 +44,7 @@ class RFM69_ATC: public RFM69 {
     void sendACK(const void* buffer = "", uint8_t bufferSize=0);
     bool sendWithRetry(uint16_t toAddress, const void* buffer, uint8_t bufferSize, uint8_t retries=2, uint8_t retryWaitTime=RFM69_ACK_TIMEOUT);
     void enableAutoPower(int16_t targetRSSI=-90);  // TWS: New method to enable/disable auto Power control
+    int16_t getTargetRssi();
 
     int16_t getAckRSSI(void);       // TWS: New method to retrieve the ack'd RSSI (if any)
     int16_t _targetRSSI;     // if non-zero then this is the desired end point RSSI for our transmission

RFM69registers.h

@@ -305,6 +305,10 @@
 #define RF_FRFMSB_433             0x6C
 #define RF_FRFMID_433             0x40
 #define RF_FRFLSB_433             0x00
+//center frequency: 433.92 - see https://github.com/LowPowerLab/RFM69/issues/202
+#define RF_FRFMSB_433_92          0x6C
+#define RF_FRFMID_433_92          0x7A
+#define RF_FRFLSB_433_92          0xE1
 #define RF_FRFMSB_434             0x6C
 #define RF_FRFMID_434             0x80
 #define RF_FRFLSB_434             0x00

library.json

@@ -1,6 +1,6 @@
 {
   "name": "RFM69",
-  "version": "1.5.2",
+  "version": "1.6.0",
   "keywords": "rf, radio, wireless, spi",
   "description": "RFM69 library for RFM69W, RFM69HW, RFM69CW, RFM69HCW (semtech SX1231, SX1231H)",
   "repository":

library.properties

@@ -1,5 +1,5 @@
 name=RFM69_LowPowerLab
-version=1.5.2
+version=1.6.0
 author=LowPowerLab <lowpowerlab.com>
 maintainer=Felix Rusu <felix@lowpowerlab.com>
 sentence=Simple Arduino library for RFM69/SX1231h based radio module transceivers