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http://www.hoperf.com/upload/rf/rfm12b.pdf
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http://www.hoperf.com/upload/rf/rfm12b.pdf
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http://tools.jeelabs.org/rfm12b.html
http://www.sevenwatt.com/main/
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http://eleclog.quitsq.com/2011/11/rfm12b-radio-act.html
Arduino cookbook
https://www.inkling.com/read/arduino-cookbook-michael-margolis-2nd/chapter-14/recipe-14-6
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http://lowpowerlab.com/blog/2012/12/28/rfm12b-arduino-library/#more-109
http://lowpowerlab.com/blog/2013/06/20/rfm69-library/
http://jeelabs.org/2011/12/11/inside-the-rf12-driver-part-2/
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http://hogehoge.tk/tool/number.html
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http://wiki.onakasuita.org/pukiwiki/?Arduino%2F%E3%83%94%E3%83%B3%E9%85%8D%E7%BD%AE
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/*useful command: http://tools.jeelabs.org/rfm12b.html arduino¤ò»ÈÍѤ¹¤ë¤È¤¤Ï16MHz¤Ë¤Ê¤Ã¤Æ¤¤¤ë¤Î¤Ç/4(¥Ç¥Õ¥©¥ë¥È)¤Ë²Ã¤¨¤Æ/2¤Î¤Ëʬ°µ¤·¤Æ»È¤¦¡£(RFM12B¤¬ 2.5MHz¤Þ¤Ç¤·¤«¼õ¤±ÉÕ¤±¤Ê¤¤ÀßÄê¤Î¤¿¤á) #define arduino ÀèÀ¸¤Î¥é¥¤¥Ö¥é¥ê¤«¤éÊѹ¹¤·¤¿²Õ½ê */ #define changed /*commands*/ #define SET_TX 0x8279 #define SET_RX 0x82D9 #define RESET 0x0000 #define STATUS_CHECK 0x0000 #define TX_SEND 0xB800 //+ data #define RX_RECEIVE 0xB000 #define CONFIGURATION 0x80D7 // el(enable tx regigter), ef(enable FIFO) 12.0pF, 433MHz #define SET_FREQUENCY 0xA4B0 // 433MHz #define SET_DATARATE 0xC623 // 9.6kbps #define SET_PLL 0xCC17 // CLK=2.5MHz, !ddy ddit, PLL BW=256k #define RX_CONTROL 0x94C2 // VDI,FAST,67kHz,LNA=0dBm,RSSI=-91dBm #define Data_Filter_Clock_Recovery 0xC2AC // AL,!ml,DIG,DQD4 #define FIFO_RESET_MODE 0xCA83 // FIFO8,2byte-SYNC,!AL,ff,DR #define TX_CONTROL 0x9850 // !mp,90kHz,MAX OUT TXpower=0(max) #define AUTO_FREQUENCY_CONTROL 0xC483 // @PWR,NO RSTRIC,!st,!fi,OE,EN #define SET_WAKEUP_TIMER 0xE000 // wake up timer / NOT USE #define SET_LOW_DUTY_CYCLE 0xC800 // low duty cycle / NOT USE//status #define SET_LOW_BATTERY_DETECT_uC_CLK 0xC049 // 1.66MHz,3.1V #define SET_SYNC_PATTERN 0xCED4 // SYNC=2DD4 //status #define TX_READY 0x8000 #define FIFO_REACHED 0x8000 //pin #define SPI_MOSI 11 #define SPI_MISO 12 #define SPI_SCK 13 #include <pins_arduino.h> #include <avr/interrupt.h> #include <Arduino.h> #include <RF12.h> int nIRQ_pin, SS_pin, RST_pin; int mode; uint8_t RF12::spi_byte(uint8_t out) { SPDR = out; while (!(SPSR & _BV(SPIF))); return SPDR; } uint16_t RF12::xfer_byte(uint16_t cmd) { uint16_t dat = 0; digitalWrite(SS_pin, 0); dat = spi_byte(cmd >> 8) << 8; dat |= spi_byte(cmd); digitalWrite(SS_pin, 1); return(dat); } void RF12::send_byte(byte data) { uint16_t d; // while(!((d = xfer_byte(0x0000)) & 0x8000)) Serial.println(d, HEX); //send 0000(status check). when returned 8000 TX is ready while(!(xfer_byte(STATUS_CHECK) & TX_READY)); // wait for TX ready xfer_byte(TX_SEND + data); delay(1); } //sending 1bit per time //would I need this? void RF12::send_data(byte *data, byte len) { byte cksum = 0; for (int i = 0; i < len; i++){ send_byte(data[i]); cksum += data[i]; } send_byte(cksum); } //wait(blocks) until it receives -> it's okay cuz used only for speaker #ifdef changed byte RF12::receive_byte() { //interrupt request output(from RFM12B), active low while(digitalRead(nIRQ_pin) == 1); // wait for any data received //status check, reset functions //xfer_byte(0x0000); // while(!(xfer_byte(0x0000) & 0x8000))Serial.println(xfer_byte(0x0000), HEX); // wait for RX ready //read 8 bits from the receiver FIFO (even if FIFO not used it still shares the same pin with RX(pin6)) xfer_byte(RESET); return(xfer_byte(RX_RECEIVE)); } #else byte RF12::receive_byte() { //interrupt request output(from RFM12B), active low while(digitalRead(nIRQ_pin) == 1); // wait for any data received //status check, reset functions xfer_byte(0x0000); //read 8 bits from the receiver FIFO (even if FIFO not used it still shares the same pin with RX(pin6)) return(xfer_byte(0xB000)); } #endif //needed to recaive less than a byte? byte *RF12::receive_data(byte *data, byte len) { int i; for (i = 0; i < len; i++){ data[i] = receive_byte(); } return(data); } void RF12::begin(uint8_t nIRQ, uint8_t SS, uint8_t RST) { nIRQ_pin = nIRQ; SS_pin = SS; RST_pin = RST; pinMode(RST_pin, INPUT); // digitalWrite(RST_pin, 0); digitalWrite(SS_pin, 1); pinMode(SS_pin, OUTPUT); //digital 11,12,13 is fixed //faster when set it directly? #ifdef changed DDRB |= ((1<<DDB3)|(1<<DDB4)|(1<<DDB5)); #else pinMode(SPI_MOSI, OUTPUT); pinMode(SPI_MISO, INPUT); pinMode(SPI_SCK, OUTPUT); #endif //need to make this smaller than 2.5MHz? arduino is 16MHz SPCR = _BV(SPE) | _BV(MSTR); // SPI master enable, Mode0 #ifdef arduino SPSR |= _BV(SPI2X); #endif pinMode(nIRQ_pin, INPUT); digitalWrite(nIRQ_pin, 1); // pull-up, active low //status check for return and initialization xfer_byte(RESET); // intitial SPI transfer added to avoid power-up problem // wait until RFM12B is out of power-up reset, this takes several *seconds* //empty Tx buffer xfer_byte(TX_SEND); // in case we're still in OOK mode //reset again and again while (digitalRead(nIRQ_pin) == 0) xfer_byte(RESET); //yes, commands start //enable internal register and FIFO mode ---> why? needed for real time and 1 byte transmission? xfer_byte(CONFIGURATION); // el, ef 12.0pF, 433MHz //fastest way it might be: turning on the whole receiver chain, synthesizer, and oscillator //I don't understand here according to datasheet #ifdef changed xfer_byte(0x82d9); // RX mode -> in case didn't set the mode? xfer_byte(SET_FREQUENCY); // 433MHz xfer_byte(SET_DATARATE); // 9.6kbps xfer_byte(SET_PLL); // CLK=2.5MHz, !ddy ddit, PLL BW=256k //especially here //xfer_byte(TX_CONTROL); // !mp,90kHz,MAX OUT TXpower=0(max) xfer_byte(RX_CONTROL); // VDI,FAST,67kHz,LNA=0dBm,RSSI=-91dBm #else //receiver baseband circuite separately switched on xfer_byte(0x82d9); // RX mode -> in case didn't set the mode? xfer_byte(0xA640); // 437MHz (430+0.0025*(0x640)[MHz]) xfer_byte(0xC647); // 4.8kbps xfer_byte(0xCC77); // CLK=2.5MHz, !ddy ddit, PLL BW=256k xfer_byte(0x94A2); // VDI,FAST,134kHz,LNA=0dBm,RSSI=-91dBm #endif //Data Filter & Clock Recovery xfer_byte(Data_Filter_Clock_Recovery); // AL,!ml,DIG,DQD4 //FIFO and reset mode xfer_byte(FIFO_RESET_MODE); // FIFO8,2byte-SYNC,!AL,ff,DR //Automatic Frequency Control xfer_byte(AUTO_FREQUENCY_CONTROL); // @PWR,NO RSTRIC,!st,!fi,OE,EN //replaced---------------------------------------------------------------- //TX control xfer_byte(TX_CONTROL); // !mp,90kHz,MAX OUT TXpower=0(max) //------------------------------------------------------------------------ xfer_byte(SET_WAKEUP_TIMER); // wake up timer / NOT USE xfer_byte(SET_LOW_DUTY_CYCLE); // low duty cycle / NOT USE //Low Battery Detect and µC Clock xfer_byte(SET_LOW_BATTERY_DETECT_uC_CLK); // 1.66MHz,3.1V //Synchronization Pattern xfer_byte(SET_SYNC_PATTERN); // SYNC=2DD4 delay(1); } void RF12::set_tx_power(uint8_t pow) { //just setting the power on TX Configuration Command xfer_byte(TX_CONTROL + (pow & 0x07)); } uint16_t RF12::read_status(void) { return(xfer_byte(STATUS_CHECK)); } RF12::RF12(void) { } void RF12::set_mode(uint8_t md) { mode = md; // xfer_byte(0x8239); // !er, !ebb, et, es, ex, !eb, !ew, dc (for tx) // xfer_byte(0x82D9); // er, ebb, !et, es, ex, !eb, !ew, dc (for rx) //new------------------------------------------------------------------- //xfer_byte(0x8279); // !er, ebb, et, es, ex, !eb, !ew, dc (for tx) // xfer_byte(0x82D9); // er, ebb, !et, es, ex, !eb, !ew, dc (for rx) #ifdef changed if (md == RF12_MODE_TX) xfer_byte(SET_TX); else if (md == RF12_MODE_RX) xfer_byte(SET_RX); #else if (md == RF12_MODE_TX) xfer_byte(0x8239); else if (md == RF12_MODE_RX) xfer_byte(0x82d9); #endif } int RF12::available(void) { if (digitalRead(nIRQ_pin) == 0) return(1); else return(0); }
-Á÷¼õ¿®¤Îino¥Õ¥¡¥¤¥ë Rx: #include <RF12.h> int RF12_SS = 10; int RF12_nIRQ = 9; int RF12_RST = 8; uint8_t payload[16]; uint16_t pckt; RF12 rf12 = RF12(); byte data; byte packet[16]; void setup() { Serial.begin(9600); rf12.begin(RF12_nIRQ, RF12_SS, RF12_RST); rf12.set_mode(RF12_MODE_RX); Serial.println("Ready Rx"); } int header = 4; int tail = 6; int index = 0, check = 0; void loop() { //uint8_t c; if (rf12.available()){ data = rf12.receive_byte(); if((data == 0xAA) || (data == 0x55)) ; else Serial.write(data); } //Serial.println(); }
Tx: #include <RF12.h> int RF12_SS = 10; int RF12_nIRQ = 9; int RF12_RST = 8; uint16_t payload[16]; uint16_t c; RF12 rf12 = RF12(); void setup() { Serial.begin(9600); pinMode(4, OUTPUT); rf12.begin(RF12_nIRQ, RF12_SS, RF12_RST); rf12.set_mode(RF12_MODE_TX); Serial.println("TX ready"); c = '!'; } void loop() { //packet format - only activating necessary parts for just 1 byte transmission //see http://jeelabs.org/2011/12/11/inside-the-rf12-driver-part-2/ //or http://lowpowerlab.com/blog/2012/12/28/rfm12b-arduino-library/#more-109 //for full packet information //necessary part(5 bytes) //preamble rf12.send_byte(0xAA); rf12.send_byte(0xAA); rf12.send_byte(0xAA); //SYN-ox2d rf12.send_byte(0x2D); //SYN-network ID (network group (can be in the range 1-255) -> 212) rf12.send_byte(0xD4); //header //CTLflag + DestID(unique node ID of receiver (1 through 30) -> 85) //0 + 55 //rf12.send_byte(c); rf12.send_byte(0x55); //ACK + SourceID(unique node ID of receiver (1 through 30)) //1 + 42? rf12.send_byte(0xaa); //DataLength rf12.send_byte(0x55); //Data rf12.send_byte(0xaa); rf12.send_byte(c); //CRC rf12.send_byte(c+1); rf12.send_byte(c+2); rf12.send_byte(0x55); //CRC rf12.send_byte(0xaa); rf12.send_byte(0x55); rf12.send_byte(0xaa); rf12.send_byte(0xaa); rf12.send_byte(0xaa); //Serial.println("Sent."); digitalWrite(4, HIGH); delay(250); digitalWrite(4, LOW); delay(250); //} }
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//port check //JDK check import java.io.*; public class CommLight{ static File sharedText; public static void main(String[] args){ SerialComm serialcomm = new SerialComm(); serialcomm.open(); int i = 10; while(i>0){ serialcomm.write((byte)0x34); try{ Thread.sleep(500); }catch(Exception e){ } serialcomm.write((byte)0x20); try{ Thread.sleep(500); }catch(Exception e){ } serialcomm.write((byte)0x78); try{ Thread.sleep(500); }catch(Exception e){ } i--; } System.out.println("Hello, World"); }}
import gnu.io.*; import java.io.*; import java.util.*; public class SerialComm implements SerialPortEventListener{ private SerialPort port; // private static BufferedReader reader; private InputStream in; private OutputStream out; SerialComm(){ super(); } public void open(){ try { // Serial port initialize CommPortIdentifier portId = CommPortIdentifier.getPortIdentifier("COM6"); port = (SerialPort)portId.open("USB Serial Port", 2000); port.setSerialPortParams( 9600, // í êM롯ìx[bps] SerialPort.DATABITS_8, // ÉfÅ[É^ÉrÉbÉgêî SerialPort.STOPBITS_1, // ÉXÉgÉbÉvÉrÉbÉg SerialPort.PARITY_NONE // ÉpÉäÉeÉB ); port.setFlowControlMode(SerialPort.FLOWCONTROL_NONE); try{ port.addEventListener(this); port.notifyOnDataAvailable(true); in = port.getInputStream(); out = port.getOutputStream(); }catch(TooManyListenersException ex){ System.out.println("Error1: "+ex); } } catch (Exception e) { System.out.println("Error2: " + e); System.exit(1); } } public void close(){ try{ in.close(); out.close(); port.close(); }catch(Exception e){ System.out.println("close: "+e); } } public void read(){ try{ byte[] buffer; int temp = in.available(); if(temp>0){ System.out.println("temp: "+temp); buffer = new byte[temp]; temp = in.read(buffer); int num = 0; while(num<temp){ System.out.println("b "+num+": "+Integer.toHexString((byte)buffer[num])); num++; } } in.close(); }catch(Exception e){ System.out.println("error4: "+e); } } public static String toHex(byte[] digest) { StringBuilder sb = new StringBuilder(); for (byte b : digest) { sb.append(String.format("%1$02X", b)); } return sb.toString(); } public void write(byte data){ try{ out.write((byte)data); out.flush(); //ÉXÉgÉäÅ[ÉÄÇ∆COMÉ|Å[ÉgÇï¢ÌÇ¢ßÇÈèàóù }catch(Exception e){ System.out.println("port exception: "+e); } } public void run() { try { InputStreamReader isr = new InputStreamReader(System.in); BufferedReader br = new BufferedReader(isr); OutputStream out = port.getOutputStream(); boolean flagQuit = false; while (!flagQuit) { String input = br.readLine(); if (input.length() > 0) { if (input.equals(":quit")) break; input += "\r"; out.write(input.getBytes("US-ASCII")); } } port.close(); } catch (Exception e) { System.out.println("Error3: " + e); } } public void serialEvent(SerialPortEvent event) { if (event.getEventType() == SerialPortEvent.DATA_AVAILABLE) { read(); } } }
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