ese519 / Mbed 2 deprecated ESE350-Whack-a-Mole_MOLE3

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Dependencies:   mbed

Fork of ESE350-Whack-a-Mole_MOLENODE1 by ese519

WhackAMole_MOLE3.cpp@2:8f0ddb8d4de6, 2015-10-22 (annotated)

Committer:
srijani987
Date:
Thu Oct 22 21:27:25 2015 +0000
Revision:
2:8f0ddb8d4de6
Parent:
WhackAMole_MOLENODE.cpp@1:dcc3ba9ffe63 
mole3

Who changed what in which revision?

UserRevisionLine numberNew contents of line
jfields 1:dcc3ba9ffe63 1 #include "mbed.h"
jfields 1:dcc3ba9ffe63 2 #include "MRF24J40.h"
jfields 1:dcc3ba9ffe63 3
jfields 1:dcc3ba9ffe63 4 #include <string>
jfields 1:dcc3ba9ffe63 5
jfields 1:dcc3ba9ffe63 6 // RF tranceiver to link with handheld.
jfields 1:dcc3ba9ffe63 7 MRF24J40 mrf(p11, p12, p13, p14, p21);
jfields 1:dcc3ba9ffe63 8
jfields 1:dcc3ba9ffe63 9 // LEDs you can treat these as variables (led2 = 1 will turn led2 on!)
jfields 1:dcc3ba9ffe63 10 DigitalOut led1(LED1);
jfields 1:dcc3ba9ffe63 11 DigitalOut led2(LED2);
jfields 1:dcc3ba9ffe63 12 DigitalOut led3(LED3);
jfields 1:dcc3ba9ffe63 13 DigitalOut led4(LED4);
jfields 1:dcc3ba9ffe63 14
jfields 1:dcc3ba9ffe63 15 AnalogIn sensor(p18);
jfields 1:dcc3ba9ffe63 16
jfields 1:dcc3ba9ffe63 17 // Timer
jfields 1:dcc3ba9ffe63 18 Timer timer;
jfields 1:dcc3ba9ffe63 19
jfields 1:dcc3ba9ffe63 20 // Serial port for showing RX data.
jfields 1:dcc3ba9ffe63 21 Serial pc(USBTX, USBRX);
jfields 1:dcc3ba9ffe63 22
jfields 1:dcc3ba9ffe63 23 // Used for sending and receiving
jfields 1:dcc3ba9ffe63 24 char txBuffer[128];
jfields 1:dcc3ba9ffe63 25 char rxBuffer[128];
jfields 1:dcc3ba9ffe63 26 int rxLen;
jfields 1:dcc3ba9ffe63 27
jfields 1:dcc3ba9ffe63 28 int num_readings = 0;
jfields 1:dcc3ba9ffe63 29
jfields 1:dcc3ba9ffe63 30 //***************** Do not change these methods (please) *****************//
jfields 1:dcc3ba9ffe63 31
jfields 1:dcc3ba9ffe63 32 /**
jfields 1:dcc3ba9ffe63 33 * Receive data from the MRF24J40.
jfields 1:dcc3ba9ffe63 34 *
jfields 1:dcc3ba9ffe63 35 * @param data A pointer to a char array to hold the data
jfields 1:dcc3ba9ffe63 36 * @param maxLength The max amount of data to read.
jfields 1:dcc3ba9ffe63 37 */
jfields 1:dcc3ba9ffe63 38 int rf_receive(char *data, uint8_t maxLength)
jfields 1:dcc3ba9ffe63 39 {
jfields 1:dcc3ba9ffe63 40 uint8_t len = mrf.Receive((uint8_t *)data, maxLength);
jfields 1:dcc3ba9ffe63 41 uint8_t header[8]= {1, 8, 0, 0xA1, 0xB2, 0xC3, 0xD4, 0x00};
jfields 1:dcc3ba9ffe63 42
jfields 1:dcc3ba9ffe63 43 if(len > 10) {
jfields 1:dcc3ba9ffe63 44 //Remove the header and footer of the message
jfields 1:dcc3ba9ffe63 45 for(uint8_t i = 0; i < len-2; i++) {
jfields 1:dcc3ba9ffe63 46 if(i<8) {
jfields 1:dcc3ba9ffe63 47 //Make sure our header is valid first
jfields 1:dcc3ba9ffe63 48 if(data[i] != header[i])
jfields 1:dcc3ba9ffe63 49 return 0;
jfields 1:dcc3ba9ffe63 50 } else {
jfields 1:dcc3ba9ffe63 51 data[i-8] = data[i];
jfields 1:dcc3ba9ffe63 52 }
jfields 1:dcc3ba9ffe63 53 }
jfields 1:dcc3ba9ffe63 54
jfields 1:dcc3ba9ffe63 55 //pc.printf("Received: %s length:%d\r\n", data, ((int)len)-10);
jfields 1:dcc3ba9ffe63 56 }
jfields 1:dcc3ba9ffe63 57 return ((int)len)-10;
jfields 1:dcc3ba9ffe63 58 }
jfields 1:dcc3ba9ffe63 59
jfields 1:dcc3ba9ffe63 60 /**
jfields 1:dcc3ba9ffe63 61 * Send data to another MRF24J40.
jfields 1:dcc3ba9ffe63 62 *
jfields 1:dcc3ba9ffe63 63 * @param data The string to send
jfields 1:dcc3ba9ffe63 64 * @param maxLength The length of the data to send.
jfields 1:dcc3ba9ffe63 65 * If you are sending a null-terminated string you can pass strlen(data)+1
jfields 1:dcc3ba9ffe63 66 */
jfields 1:dcc3ba9ffe63 67 void rf_send(char *data, uint8_t len)
jfields 1:dcc3ba9ffe63 68 {
jfields 1:dcc3ba9ffe63 69 //We need to prepend the message with a valid ZigBee header
jfields 1:dcc3ba9ffe63 70 uint8_t header[8]= {1, 8, 0, 0xA1, 0xB2, 0xC3, 0xD4, 0x00};
jfields 1:dcc3ba9ffe63 71 uint8_t *send_buf = (uint8_t *) malloc( sizeof(uint8_t) * (len+8) );
jfields 1:dcc3ba9ffe63 72
jfields 1:dcc3ba9ffe63 73 for(uint8_t i = 0; i < len+8; i++) {
jfields 1:dcc3ba9ffe63 74 //prepend the 8-byte header
jfields 1:dcc3ba9ffe63 75 send_buf[i] = (i<8) ? header[i] : data[i-8];
jfields 1:dcc3ba9ffe63 76 }
jfields 1:dcc3ba9ffe63 77 //pc.printf("Sent: %s\r\n", send_buf+8);
jfields 1:dcc3ba9ffe63 78
jfields 1:dcc3ba9ffe63 79 mrf.Send(send_buf, len+8);
jfields 1:dcc3ba9ffe63 80 free(send_buf);
jfields 1:dcc3ba9ffe63 81 }
jfields 1:dcc3ba9ffe63 82
jfields 1:dcc3ba9ffe63 83
jfields 1:dcc3ba9ffe63 84 //***************** You can start coding here *****************//
jfields 1:dcc3ba9ffe63 85 int main (void)
jfields 1:dcc3ba9ffe63 86 {
srijani987 2:8f0ddb8d4de6 87 uint8_t channel = 15;
jfields 1:dcc3ba9ffe63 88
jfields 1:dcc3ba9ffe63 89 //Set the Channel. 0 is default, 15 is max
jfields 1:dcc3ba9ffe63 90 mrf.SetChannel(channel);
jfields 1:dcc3ba9ffe63 91
jfields 1:dcc3ba9ffe63 92
jfields 1:dcc3ba9ffe63 93 while(true) {
jfields 1:dcc3ba9ffe63 94 //Try to receive some data
jfields 1:dcc3ba9ffe63 95 rxLen = rf_receive(rxBuffer, 128);
jfields 1:dcc3ba9ffe63 96 if(rxLen > 0) {
jfields 1:dcc3ba9ffe63 97 //Toggle the Led
jfields 1:dcc3ba9ffe63 98 led1 = led1^1;
jfields 1:dcc3ba9ffe63 99 pc.printf("Received: %s\r\n", rxBuffer);
jfields 1:dcc3ba9ffe63 100
srijani987 2:8f0ddb8d4de6 101 if (strcmp(rxBuffer, "MOLE3")) {
jfields 1:dcc3ba9ffe63 102 led1 = 1;
jfields 1:dcc3ba9ffe63 103 led2 = 1;
jfields 1:dcc3ba9ffe63 104 led3 = 1;
srijani987 2:8f0ddb8d4de6 105 led4 = 1;
srijani987 2:8f0ddb8d4de6 106
srijani987 2:8f0ddb8d4de6 107 // read sensor
srijani987 2:8f0ddb8d4de6 108 num_readings = 0;
srijani987 2:8f0ddb8d4de6 109 while (num_readings < 10) {
srijani987 2:8f0ddb8d4de6 110 float val = sensor.read();
srijani987 2:8f0ddb8d4de6 111 //printf("sensor = %f\n", sensor.read());
srijani987 2:8f0ddb8d4de6 112 if (val < 0.6) num_readings++;
srijani987 2:8f0ddb8d4de6 113 }
srijani987 2:8f0ddb8d4de6 114
srijani987 2:8f0ddb8d4de6 115 // SEND
srijani987 2:8f0ddb8d4de6 116 strcpy(txBuffer, "HIT");
srijani987 2:8f0ddb8d4de6 117 //Send the buffer
srijani987 2:8f0ddb8d4de6 118 rf_send(txBuffer, strlen(txBuffer) + 1);
srijani987 2:8f0ddb8d4de6 119 pc.printf("Sent: %s\r\n", txBuffer);
srijani987 2:8f0ddb8d4de6 120 led1 = 0;
srijani987 2:8f0ddb8d4de6 121 led2 = 0;
srijani987 2:8f0ddb8d4de6 122 led3 = 0;
srijani987 2:8f0ddb8d4de6 123 led4 = 0;
jfields 1:dcc3ba9ffe63 124
srijani987 2:8f0ddb8d4de6 125 }
jfields 1:dcc3ba9ffe63 126
jfields 1:dcc3ba9ffe63 127 }
jfields 1:dcc3ba9ffe63 128
jfields 1:dcc3ba9ffe63 129 }
jfields 1:dcc3ba9ffe63 130 }