// Sample RFM69 sender/node sketch, with ACK and optional encryption, and Automatic Transmission Control // Sends periodic messages of increasing length to gateway (id=1) // It also looks for an onboard FLASH chip, if present // ********************************************************************************** // Copyright Felix Rusu 2016, 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 //get it here: https://www.github.com/lowpowerlab/rfm69 #include //get it here: https://www.github.com/lowpowerlab/rfm69 #include //get it here: https://www.github.com/lowpowerlab/spiflash #include //included with Arduino IDE install (www.arduino.cc) //********************************************************************************************* //************ IMPORTANT SETTINGS - YOU MUST CHANGE/CONFIGURE TO FIT YOUR HARDWARE ************ //********************************************************************************************* #define NODEID 2 //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) #define GATEWAYID 1 //Match frequency to the hardware version of the radio on your Moteino (uncomment one): //#define FREQUENCY RF69_433MHZ //#define FREQUENCY RF69_868MHZ #define FREQUENCY RF69_915MHZ #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 //********************************************************************************************* #ifdef __AVR_ATmega1284P__ #define LED 15 // Moteino MEGAs have LEDs on D15 #define FLASH_SS 23 // and FLASH SS on D23 #else #define LED 9 // Moteinos have LEDs on D9 #define FLASH_SS 8 // and FLASH SS on D8 #endif //replace Serial with SerialUSB #if defined (MOTEINO_M0) #if defined(SERIAL_PORT_USBVIRTUAL) #define Serial SERIAL_PORT_USBVIRTUAL // Required for Serial on Zero based boards #endif #endif #define SERIAL_BAUD 115200 int TRANSMITPERIOD = 200; //transmit a packet to gateway so often (in ms) char payload[] = "123 ABCDEFGHIJKLMNOPQRSTUVWXYZ"; char buff[20]; byte sendSize=0; boolean requestACK = false; SPIFlash flash(FLASH_SS, 0xEF30); //EF30 for 4mbit Windbond chip (W25X40CL) #ifdef ENABLE_ATC RFM69_ATC radio; #else RFM69 radio; #endif void setup() { Serial.begin(SERIAL_BAUD); while (!Serial) { ; // wait for serial port to connect. Needed for native USB } radio.initialize(FREQUENCY,NODEID,NETWORKID); #ifdef IS_RFM69HW_HCW radio.setHighPower(); //must include this only for RFM69HW/HCW! #endif radio.encrypt(ENCRYPTKEY); //radio.setFrequency(919000000); //set frequency to some custom frequency //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 char buff[50]; sprintf(buff, "\nTransmitting at %d Mhz...", FREQUENCY==RF69_433MHZ ? 433 : FREQUENCY==RF69_868MHZ ? 868 : 915); Serial.println(buff); if (flash.initialize()) { Serial.print("SPI Flash Init OK ... UniqueID (MAC): "); flash.readUniqueId(); for (byte i=0;i<8;i++) { Serial.print(flash.UNIQUEID[i], HEX); Serial.print(' '); } Serial.println(); } else Serial.println("SPI Flash MEM not found (is chip soldered?)..."); #ifdef ENABLE_ATC Serial.println("RFM69_ATC Enabled (Auto Transmission Control)\n"); #endif } void Blink(byte PIN, int DELAY_MS) { pinMode(PIN, OUTPUT); digitalWrite(PIN,HIGH); delay(DELAY_MS); digitalWrite(PIN,LOW); } long lastPeriod = 0; void loop() { //process any serial input if (Serial.available() > 0) { char input = Serial.read(); if (input >= 48 && input <= 57) //[0,9] { TRANSMITPERIOD = 100 * (input-48); if (TRANSMITPERIOD == 0) TRANSMITPERIOD = 1000; Serial.print("\nChanging delay to "); Serial.print(TRANSMITPERIOD); Serial.println("ms\n"); } if (input == 'r') //d=dump register values radio.readAllRegs(); //if (input == 'E') //E=enable encryption // radio.encrypt(KEY); //if (input == 'e') //e=disable encryption // radio.encrypt(null); if (input == 'd') //d=dump flash area { Serial.println("Flash content:"); uint16_t counter = 0; Serial.print("0-256: "); while(counter<=256){ Serial.print(flash.readByte(counter++), HEX); Serial.print('.'); } while(flash.busy()); Serial.println(); } if (input == 'e') { Serial.print("Erasing Flash chip ... "); flash.chipErase(); while(flash.busy()); Serial.println("DONE"); } if (input == 'i') { Serial.print("DeviceID: "); word jedecid = flash.readDeviceId(); Serial.println(jedecid, HEX); } } //check for any received packets if (radio.receiveDone()) { Serial.print('[');Serial.print(radio.SENDERID, DEC);Serial.print("] "); for (byte i = 0; i < radio.DATALEN; i++) Serial.print((char)radio.DATA[i]); Serial.print(" [RX_RSSI:");Serial.print(radio.RSSI);Serial.print("]"); if (radio.ACKRequested()) { radio.sendACK(); Serial.print(" - ACK sent"); } Blink(LED,3); Serial.println(); } int currPeriod = millis()/TRANSMITPERIOD; if (currPeriod != lastPeriod) { lastPeriod=currPeriod; //send FLASH id if(sendSize==0) { sprintf(buff, "FLASH_MEM_ID:0x%X", flash.readDeviceId()); byte buffLen=strlen(buff); if (radio.sendWithRetry(GATEWAYID, buff, buffLen)) Serial.print(" ok!"); else Serial.print(" nothing..."); //sendSize = (sendSize + 1) % 31; } else { Serial.print("Sending["); Serial.print(sendSize); Serial.print("]: "); for(byte i = 0; i < sendSize; i++) Serial.print((char)payload[i]); if (radio.sendWithRetry(GATEWAYID, payload, sendSize)) Serial.print(" ok!"); else Serial.print(" nothing..."); } sendSize = (sendSize + 1) % 31; Serial.println(); Blink(LED,3); } }