160 lines
7.0 KiB
C++
160 lines
7.0 KiB
C++
// 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
|
|
}
|