242 lines
8.6 KiB
Arduino
242 lines
8.6 KiB
Arduino
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// Sample RFM69 sketch for the MotionOLED mote containing the OLED
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// Displays any messages on the network on the OLED display and beeps the buzzer every time a message is received
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// The side button will step through 10 past received messages
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// Library and code by Felix Rusu - felix@lowpowerlab.com
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// Get libraries at: https://github.com/LowPowerLab/
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// Make sure you adjust the settings in the configuration section below !!!
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// **********************************************************************************
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// Copyright Felix Rusu, LowPowerLab.com
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// Library and code by Felix Rusu - felix@lowpowerlab.com
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// **********************************************************************************
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// License
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// **********************************************************************************
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// This program is free software; you can redistribute it
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// and/or modify it under the terms of the GNU General
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// Public License as published by the Free Software
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// Foundation; either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will
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// be useful, but WITHOUT ANY WARRANTY; without even the
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// implied warranty of MERCHANTABILITY or FITNESS FOR A
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// PARTICULAR PURPOSE. See the GNU General Public
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// License for more details.
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//
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// You should have received a copy of the GNU General
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// Public License along with this program.
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// If not, see <http://www.gnu.org/licenses/>.
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//
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// Licence can be viewed at
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// http://www.gnu.org/licenses/gpl-3.0.txt
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//
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// Please maintain this license information along with authorship
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// and copyright notices in any redistribution of this code
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// **********************************************************************************
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#include <RFM69.h> //get it here: https://www.github.com/lowpowerlab/rfm69
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#include <SPI.h>
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#include <LowPower.h> //get library from: https://github.com/lowpowerlab/lowpower
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#include "U8glib.h" //get library from: https://code.google.com/p/u8glib/
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//*********************************************************************************************
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// *********** IMPORTANT SETTINGS - YOU MUST CHANGE/ONFIGURE TO FIT YOUR HARDWARE *************
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//*********************************************************************************************
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#define NODEID 122 //unique for each node on same network
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#define NETWORKID 100 //the same on all nodes that talk to each other
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//Match frequency to the hardware version of the radio on your Moteino (uncomment one):
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//#define FREQUENCY RF69_433MHZ
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//#define FREQUENCY RF69_868MHZ
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#define FREQUENCY RF69_915MHZ
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#define ENCRYPTKEY "sampleEncryptKey" //exactly the same 16 characters/bytes on all nodes!
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#define IS_RFM69HW //uncomment only for RFM69HW! Remove/comment if you have RFM69W!
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//*********************************************************************************************
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#define SERIAL_BAUD 115200
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#define LED 5 // Moteinos have LEDs on D9, but for MotionMote we are using the external led on D5
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#define BUZZER 6
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#define BUTTON_INT 1 //user button on interrupt 1
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#define BUTTON_PIN 3 //user button on interrupt 1
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RFM69 radio;
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U8GLIB_SSD1306_128X64 u8g(U8G_I2C_OPT_NONE); // I2C / TWI SSD1306 OLED 128x64
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bool promiscuousMode = true; //set to 'true' to sniff all packets on the same network
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void setup() {
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Serial.begin(SERIAL_BAUD);
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radio.initialize(FREQUENCY,NODEID,NETWORKID);
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#ifdef IS_RFM69HW
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radio.setHighPower(); //only for RFM69HW!
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#endif
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radio.encrypt(ENCRYPTKEY);
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radio.promiscuous(promiscuousMode);
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char buff[50];
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sprintf(buff, "\nListening at %d Mhz...", FREQUENCY==RF69_433MHZ ? 433 : FREQUENCY==RF69_868MHZ ? 868 : 915);
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Serial.println(buff);
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pinMode(BUZZER, OUTPUT);
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//configure OLED
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u8g.setRot180(); //flip screen
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// assign default color value
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if ( u8g.getMode() == U8G_MODE_R3G3B2 )
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u8g.setColorIndex(255); // white
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else if ( u8g.getMode() == U8G_MODE_GRAY2BIT )
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u8g.setColorIndex(3); // max intensity
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else if ( u8g.getMode() == U8G_MODE_BW )
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u8g.setColorIndex(1); // pixel on
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else if ( u8g.getMode() == U8G_MODE_HICOLOR )
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u8g.setHiColorByRGB(255,255,255);
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u8g.begin();
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Serial.flush();
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pinMode(BUTTON_PIN, INPUT_PULLUP);
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attachInterrupt(BUTTON_INT, handleButton, FALLING);
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}
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#define FLAG_INTERRUPT 0x01
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volatile int mainEventFlags = 0;
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boolean buttonPressed = false;
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void handleButton()
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{
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mainEventFlags |= FLAG_INTERRUPT;
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}
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byte ackCount=0;
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#define MSG_MAX_LEN 17 //OLED 1 line max # of chars (16 + EOL)
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#define HISTORY_LEN 10 //hold this many past messages
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typedef struct {
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char data[MSG_MAX_LEN];
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int rssi;
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byte from;
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} Message;
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Message * messageHistory = new Message[HISTORY_LEN];
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byte lastMessageIndex = HISTORY_LEN;
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byte currMessageIndex = HISTORY_LEN;
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byte historyLength = 0;
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void loop() {
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if (mainEventFlags & FLAG_INTERRUPT)
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{
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LowPower.powerDown(SLEEP_30MS, ADC_OFF, BOD_ON);
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mainEventFlags &= ~FLAG_INTERRUPT;
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if (!digitalRead(BUTTON_PIN)) {
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buttonPressed=true;
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}
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}
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if (buttonPressed)
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{
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buttonPressed = false;
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Beep(10, false);
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//save non-ACK messages in a circular buffer
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if (!radio.ACK_RECEIVED && historyLength > 1) //only care if at least 2 messages saved. if only 1 message it should be displayed already
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{
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if (currMessageIndex==0)
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currMessageIndex=historyLength-1;
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else currMessageIndex--;
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//Serial.print("HIST currIndex/histLen=");Serial.print(currMessageIndex+1);Serial.print("/");Serial.print(historyLength);
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//Serial.print(" - ");
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//Serial.println(messageHistory[currMessageIndex].data);
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u8g.firstPage();
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do {
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draw(messageHistory[currMessageIndex].data, messageHistory[currMessageIndex].rssi, messageHistory[currMessageIndex].from, true);
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} while(u8g.nextPage());
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//delay(10); //give OLED time to draw?
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}
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}
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if (radio.receiveDone())
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{
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Serial.print('[');Serial.print(radio.SENDERID);Serial.print("] ");
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if (promiscuousMode)
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Serial.print("to [");Serial.print(radio.TARGETID);Serial.print("] ");
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Serial.print((char*)radio.DATA);
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Serial.print(" [RX_RSSI:");Serial.print(radio.RSSI);Serial.print("]");
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Serial.println();
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saveToHistory((char *)radio.DATA, radio.RSSI, radio.SENDERID);
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Blink(LED,3);
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Beep(20, true);
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u8g.firstPage();
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do {
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draw((char*)radio.DATA, radio.RSSI, radio.SENDERID, false);
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} while(u8g.nextPage());
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//delay(10); //give OLED time to draw?
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}
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radio.receiveDone();
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Serial.flush();
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LowPower.powerDown(SLEEP_8S, ADC_OFF, BOD_ON);
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}
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float batteryVolts = 5;
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char* BATstr="BAT:5.00v";
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void draw(char * data, int rssi, byte from, boolean isHist) {
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char buff[20];
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// graphic commands to redraw the complete screen should be placed here
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u8g.setFont(u8g_font_unifont);
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u8g.drawStr( 0, 10, data);
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sprintf(buff, "ID:%d", from);
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u8g.drawStr( 0, 25, buff);
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sprintf(buff, "RSSI:%d", rssi);
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u8g.drawStr( 60, 25, buff);
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if (!isHist)
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{
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batteryVolts = analogRead(A7) * 0.00322 * 1.42;
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dtostrf(batteryVolts, 3,2, BATstr);
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sprintf(buff, "BAT:%sv", BATstr);
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u8g.drawStr( 0, 55, buff);
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}
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}
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void Beep(byte theDelay, boolean both)
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{
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if (theDelay > 20) theDelay = 20;
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tone(BUZZER, 4200); //4200
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delay(theDelay);
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noTone(BUZZER);
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LowPower.powerDown(SLEEP_15MS, ADC_OFF, BOD_ON);
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if (both)
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{
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tone(BUZZER, 4500); //4500
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delay(theDelay);
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noTone(BUZZER);
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}
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}
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void Blink(byte PIN, int DELAY_MS)
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{
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pinMode(PIN, OUTPUT);
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digitalWrite(PIN,HIGH);
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delay(DELAY_MS);
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digitalWrite(PIN,LOW);
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}
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void saveToHistory(char * msg, int rssi, byte from)
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{
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byte length = strlen(msg);
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byte i = 0;
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if (lastMessageIndex >=9) lastMessageIndex = 0;
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else lastMessageIndex++;
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currMessageIndex = lastMessageIndex;
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if (historyLength < HISTORY_LEN) historyLength++;
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//Serial.print("HIST SAVE lastIndex=");Serial.print(lastMessageIndex);Serial.print(" strlen=");Serial.print(length);
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//Serial.print(" msg=[");
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for (; i<(MSG_MAX_LEN-1) && (i < length); i++)
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{
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messageHistory[lastMessageIndex].data[i] = msg[i];
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Serial.print(msg[i]);
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}
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//Serial.print("] copied:");
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messageHistory[lastMessageIndex].data[i] = '\0'; //terminate string
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//Serial.println((char*)messageHistory[lastMessageIndex].data);
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messageHistory[lastMessageIndex].rssi = rssi;
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messageHistory[lastMessageIndex].from = from;
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}
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