EmbeddedArtists AB / app_xbee_s1

An example that shows how to use the XBee class/interface

Dependencies:   EALib mbed

main.cpp@1:fb7d92d3adbe, 2014-04-09 (annotated)

Committer:
embeddedartists
Date:
Wed Apr 09 10:37:30 2014 +0000
Revision:
1:fb7d92d3adbe
Parent:
0:50a4a80f3ecd 
Updated to latest version of EALib

Who changed what in which revision?

UserRevisionLine numberNew contents of line
embeddedartists 0:50a4a80f3ecd 1 /******************************************************************************
embeddedartists 0:50a4a80f3ecd 2 * Includes
embeddedartists 0:50a4a80f3ecd 3 *****************************************************************************/
embeddedartists 0:50a4a80f3ecd 4 #include "mbed.h"
embeddedartists 0:50a4a80f3ecd 5 #include "XBee.h"
embeddedartists 0:50a4a80f3ecd 6
embeddedartists 0:50a4a80f3ecd 7 /******************************************************************************
embeddedartists 0:50a4a80f3ecd 8 * Typedefs and defines
embeddedartists 0:50a4a80f3ecd 9 *****************************************************************************/
embeddedartists 0:50a4a80f3ecd 10
embeddedartists 0:50a4a80f3ecd 11 // define NODE_IS_COORDINATOR if this board should act
embeddedartists 0:50a4a80f3ecd 12 // as XBee coordinator. Make sure it is undefined it the board
embeddedartists 0:50a4a80f3ecd 13 // should act as End-Device
embeddedartists 1:fb7d92d3adbe 14 #define NODE_IS_COORDINATOR (1)
embeddedartists 0:50a4a80f3ecd 15
embeddedartists 0:50a4a80f3ecd 16 #define CMD_BTN_MSG (0)
embeddedartists 0:50a4a80f3ecd 17 #define CMD_ACK_MSG (1)
embeddedartists 0:50a4a80f3ecd 18
embeddedartists 0:50a4a80f3ecd 19 /******************************************************************************
embeddedartists 0:50a4a80f3ecd 20 * Local variables
embeddedartists 0:50a4a80f3ecd 21 *****************************************************************************/
embeddedartists 0:50a4a80f3ecd 22
embeddedartists 0:50a4a80f3ecd 23 static XBee xbee(P4_22, P4_23, P4_17, P4_19);
embeddedartists 0:50a4a80f3ecd 24
embeddedartists 0:50a4a80f3ecd 25 // led1 + led 2 -> active low
embeddedartists 0:50a4a80f3ecd 26 static DigitalOut xbeeInitLed(LED1);
embeddedartists 0:50a4a80f3ecd 27 static DigitalOut remoteBtnLed(LED2);
embeddedartists 0:50a4a80f3ecd 28 // led3 + led 4 -> active high
embeddedartists 0:50a4a80f3ecd 29 static DigitalOut ackLed(LED3);
embeddedartists 0:50a4a80f3ecd 30 static DigitalOut led4(LED4);
embeddedartists 0:50a4a80f3ecd 31
embeddedartists 0:50a4a80f3ecd 32 static DigitalIn button(p23);
embeddedartists 0:50a4a80f3ecd 33 static bool xbeeIsUp = false;
embeddedartists 0:50a4a80f3ecd 34
embeddedartists 0:50a4a80f3ecd 35 /******************************************************************************
embeddedartists 0:50a4a80f3ecd 36 * Local functions
embeddedartists 0:50a4a80f3ecd 37 *****************************************************************************/
embeddedartists 0:50a4a80f3ecd 38
embeddedartists 0:50a4a80f3ecd 39 static void xbeeDeviceUp(void) {
embeddedartists 0:50a4a80f3ecd 40 xbeeIsUp = true;
embeddedartists 0:50a4a80f3ecd 41 }
embeddedartists 0:50a4a80f3ecd 42
embeddedartists 0:50a4a80f3ecd 43 static void xbeeDeviceDown(void) {
embeddedartists 0:50a4a80f3ecd 44 xbeeIsUp = false;
embeddedartists 0:50a4a80f3ecd 45 }
embeddedartists 0:50a4a80f3ecd 46
embeddedartists 0:50a4a80f3ecd 47 static void xbeeNodeFound(void) {
embeddedartists 0:50a4a80f3ecd 48 uint32_t addrHi = 0;
embeddedartists 0:50a4a80f3ecd 49 uint32_t addrLo = 0;
embeddedartists 0:50a4a80f3ecd 50 uint8_t rssi = 0;
embeddedartists 0:50a4a80f3ecd 51
embeddedartists 0:50a4a80f3ecd 52 xbee.getRemoteAddress(&addrHi, &addrLo);
embeddedartists 0:50a4a80f3ecd 53 xbee.getRssi(&rssi);
embeddedartists 0:50a4a80f3ecd 54
embeddedartists 0:50a4a80f3ecd 55 printf("XBee: node found: hi=%lx, lo=%lx, rssi=%d\n",
embeddedartists 0:50a4a80f3ecd 56 addrHi, addrLo, rssi);
embeddedartists 0:50a4a80f3ecd 57 }
embeddedartists 0:50a4a80f3ecd 58
embeddedartists 0:50a4a80f3ecd 59 static void xbeeTxStat(void) {
embeddedartists 0:50a4a80f3ecd 60
embeddedartists 0:50a4a80f3ecd 61 uint8_t frameId = 0;
embeddedartists 0:50a4a80f3ecd 62 XBee::XBeeTxStatus status = XBee::TxStatusOk;
embeddedartists 0:50a4a80f3ecd 63
embeddedartists 0:50a4a80f3ecd 64 xbee.getTxStatus(&frameId, &status);
embeddedartists 0:50a4a80f3ecd 65
embeddedartists 0:50a4a80f3ecd 66 printf("XBee: Tx Stat. Id=%u, status=%d\n", frameId, (int)status);
embeddedartists 0:50a4a80f3ecd 67 }
embeddedartists 0:50a4a80f3ecd 68
embeddedartists 0:50a4a80f3ecd 69
embeddedartists 0:50a4a80f3ecd 70
embeddedartists 0:50a4a80f3ecd 71 static void xbeeDataAvailable(void) {
embeddedartists 0:50a4a80f3ecd 72 char* data = NULL;
embeddedartists 0:50a4a80f3ecd 73 char ackMsg = CMD_ACK_MSG;
embeddedartists 0:50a4a80f3ecd 74 uint8_t frameId = 0;
embeddedartists 0:50a4a80f3ecd 75 uint8_t len = 0;
embeddedartists 0:50a4a80f3ecd 76 uint32_t addrHi = 0;
embeddedartists 0:50a4a80f3ecd 77 uint32_t addrLo = 0;
embeddedartists 0:50a4a80f3ecd 78 uint8_t rssi = 0;
embeddedartists 0:50a4a80f3ecd 79
embeddedartists 0:50a4a80f3ecd 80 xbee.getRemoteAddress(&addrHi, &addrLo);
embeddedartists 0:50a4a80f3ecd 81 xbee.getData(&data, &len);
embeddedartists 0:50a4a80f3ecd 82 xbee.getRssi(&rssi);
embeddedartists 0:50a4a80f3ecd 83
embeddedartists 0:50a4a80f3ecd 84 printf("XBee: Data available: len=%d hi=%lx, lo=%lx, rssi=%d\n",
embeddedartists 0:50a4a80f3ecd 85 (int)len, addrHi, addrLo, rssi);
embeddedartists 0:50a4a80f3ecd 86
embeddedartists 0:50a4a80f3ecd 87 if (len > 0) {
embeddedartists 0:50a4a80f3ecd 88
embeddedartists 0:50a4a80f3ecd 89 switch(data[0]) {
embeddedartists 0:50a4a80f3ecd 90 case CMD_BTN_MSG:
embeddedartists 0:50a4a80f3ecd 91 if (len > 1) {
embeddedartists 0:50a4a80f3ecd 92 // change led to indicate button state
embeddedartists 0:50a4a80f3ecd 93 remoteBtnLed = ((data[1] == 1) ? 1 : 0);
embeddedartists 0:50a4a80f3ecd 94
embeddedartists 0:50a4a80f3ecd 95
embeddedartists 0:50a4a80f3ecd 96 // Send an ACK directly to the remote node (only for
embeddedartists 0:50a4a80f3ecd 97 // buttons state == 0)
embeddedartists 0:50a4a80f3ecd 98 if (data[1] == 0) {
embeddedartists 0:50a4a80f3ecd 99 xbee.send(addrHi, addrLo, &ackMsg, 1, &frameId);
embeddedartists 0:50a4a80f3ecd 100 }
embeddedartists 0:50a4a80f3ecd 101 }
embeddedartists 0:50a4a80f3ecd 102 break;
embeddedartists 0:50a4a80f3ecd 103 case CMD_ACK_MSG:
embeddedartists 0:50a4a80f3ecd 104 for (int i = 0; i < 3; i++) {
embeddedartists 0:50a4a80f3ecd 105 ackLed = 1;
embeddedartists 0:50a4a80f3ecd 106 wait_ms(100);
embeddedartists 0:50a4a80f3ecd 107 ackLed = 0;
embeddedartists 0:50a4a80f3ecd 108 wait_ms(100);
embeddedartists 0:50a4a80f3ecd 109 }
embeddedartists 0:50a4a80f3ecd 110 break;
embeddedartists 0:50a4a80f3ecd 111 }
embeddedartists 0:50a4a80f3ecd 112
embeddedartists 0:50a4a80f3ecd 113 }
embeddedartists 0:50a4a80f3ecd 114
embeddedartists 0:50a4a80f3ecd 115 }
embeddedartists 0:50a4a80f3ecd 116
embeddedartists 0:50a4a80f3ecd 117 static bool xbeeInit()
embeddedartists 0:50a4a80f3ecd 118 {
embeddedartists 0:50a4a80f3ecd 119 xbee.registerCallback(xbeeDeviceUp, XBee::CbDeviceUp);
embeddedartists 0:50a4a80f3ecd 120 xbee.registerCallback(xbeeDeviceDown, XBee::CbDeviceDown);
embeddedartists 0:50a4a80f3ecd 121 xbee.registerCallback(xbeeNodeFound, XBee::CbNodeFound);
embeddedartists 0:50a4a80f3ecd 122 xbee.registerCallback(xbeeTxStat, XBee::CbTxStat);
embeddedartists 0:50a4a80f3ecd 123 xbee.registerCallback(xbeeDataAvailable, XBee::CbDataAvailable);
embeddedartists 0:50a4a80f3ecd 124
embeddedartists 0:50a4a80f3ecd 125 #ifdef NODE_IS_COORDINATOR
embeddedartists 0:50a4a80f3ecd 126 XBee::XBeeError err = xbee.init(XBee::Coordinator, "EAEA");
embeddedartists 0:50a4a80f3ecd 127 #else
embeddedartists 0:50a4a80f3ecd 128 XBee::XBeeError err = xbee.init(XBee::EndDevice, "EAEA");
embeddedartists 0:50a4a80f3ecd 129 #endif
embeddedartists 0:50a4a80f3ecd 130 if (err != XBee::Ok) {
embeddedartists 0:50a4a80f3ecd 131 return false;
embeddedartists 0:50a4a80f3ecd 132 }
embeddedartists 0:50a4a80f3ecd 133
embeddedartists 0:50a4a80f3ecd 134 return true;
embeddedartists 0:50a4a80f3ecd 135
embeddedartists 0:50a4a80f3ecd 136 }
embeddedartists 0:50a4a80f3ecd 137
embeddedartists 0:50a4a80f3ecd 138 static void reportInitFailed() {
embeddedartists 0:50a4a80f3ecd 139 while (true) {
embeddedartists 0:50a4a80f3ecd 140 xbeeInitLed = !xbeeInitLed;
embeddedartists 0:50a4a80f3ecd 141 wait_ms(200);
embeddedartists 0:50a4a80f3ecd 142 }
embeddedartists 0:50a4a80f3ecd 143 }
embeddedartists 0:50a4a80f3ecd 144
embeddedartists 0:50a4a80f3ecd 145 static void ledInit() {
embeddedartists 0:50a4a80f3ecd 146 xbeeInitLed = 0; // turn on
embeddedartists 0:50a4a80f3ecd 147 remoteBtnLed = 1; // turn off
embeddedartists 0:50a4a80f3ecd 148 ackLed = 0; // turn off
embeddedartists 0:50a4a80f3ecd 149 led4 = 0; // turn off
embeddedartists 0:50a4a80f3ecd 150 }
embeddedartists 0:50a4a80f3ecd 151
embeddedartists 0:50a4a80f3ecd 152
embeddedartists 0:50a4a80f3ecd 153 /******************************************************************************
embeddedartists 0:50a4a80f3ecd 154 * Main function
embeddedartists 0:50a4a80f3ecd 155 *****************************************************************************/
embeddedartists 0:50a4a80f3ecd 156
embeddedartists 0:50a4a80f3ecd 157 int main() {
embeddedartists 0:50a4a80f3ecd 158
embeddedartists 0:50a4a80f3ecd 159 /*
embeddedartists 0:50a4a80f3ecd 160 * For this example to work at least two boards with XBee nodes must
embeddedartists 0:50a4a80f3ecd 161 * be available; one which is configured as Coordinator and another
embeddedartists 0:50a4a80f3ecd 162 * which is configured as End-Device.
embeddedartists 0:50a4a80f3ecd 163 *
embeddedartists 0:50a4a80f3ecd 164 * LED1 shows the state of XBee initialization. This LED is turned
embeddedartists 0:50a4a80f3ecd 165 * on when initialization starts and turned off when initialization
embeddedartists 0:50a4a80f3ecd 166 * is ready and the device us up. If initialization fails LED1
embeddedartists 0:50a4a80f3ecd 167 * will blink.
embeddedartists 0:50a4a80f3ecd 168 *
embeddedartists 0:50a4a80f3ecd 169 * When the Push-button on the LPC4088 QuickStart Board is pushed
embeddedartists 0:50a4a80f3ecd 170 * a message will be broadcasted. The board(s) that receives the message
embeddedartists 0:50a4a80f3ecd 171 * will show the state of the remote board's button by turning LED2
embeddedartists 0:50a4a80f3ecd 172 * on or off.
embeddedartists 0:50a4a80f3ecd 173 *
embeddedartists 0:50a4a80f3ecd 174 * The board that receives the button state message will send back
embeddedartists 0:50a4a80f3ecd 175 * an ACK message (only for button down). The board that receives
embeddedartists 0:50a4a80f3ecd 176 * the ACK message will blink with LED3. This can be used to verify
embeddedartists 0:50a4a80f3ecd 177 * that a board that is not close to you actually received a message
embeddedartists 0:50a4a80f3ecd 178 * without having to look at that board's LED2.
embeddedartists 0:50a4a80f3ecd 179 */
embeddedartists 0:50a4a80f3ecd 180
embeddedartists 0:50a4a80f3ecd 181 int buttonState = 1;
embeddedartists 0:50a4a80f3ecd 182 char data[2];
embeddedartists 0:50a4a80f3ecd 183 uint8_t frameId = 0;
embeddedartists 0:50a4a80f3ecd 184
embeddedartists 0:50a4a80f3ecd 185 // pull-up must be enabled for button
embeddedartists 0:50a4a80f3ecd 186 button.mode(PullUp);
embeddedartists 0:50a4a80f3ecd 187
embeddedartists 0:50a4a80f3ecd 188 ledInit();
embeddedartists 0:50a4a80f3ecd 189
embeddedartists 0:50a4a80f3ecd 190 printf("Initializing\n");
embeddedartists 0:50a4a80f3ecd 191 if (!xbeeInit()) {
embeddedartists 0:50a4a80f3ecd 192 reportInitFailed();
embeddedartists 0:50a4a80f3ecd 193 }
embeddedartists 0:50a4a80f3ecd 194
embeddedartists 0:50a4a80f3ecd 195 // Wait until XBee node is reported to be up.
embeddedartists 0:50a4a80f3ecd 196 // - For End-device this means that the node is associated with a
embeddedartists 0:50a4a80f3ecd 197 // coordinator
embeddedartists 0:50a4a80f3ecd 198 // - For a coordinator this means that the node is initialized and ready
embeddedartists 0:50a4a80f3ecd 199 printf("Wait until up\n");
embeddedartists 0:50a4a80f3ecd 200 while(!xbeeIsUp) {
embeddedartists 0:50a4a80f3ecd 201 xbee.process();
embeddedartists 0:50a4a80f3ecd 202 }
embeddedartists 0:50a4a80f3ecd 203
embeddedartists 0:50a4a80f3ecd 204 // turn off led to indicate initialization is okay and node is up
embeddedartists 0:50a4a80f3ecd 205 xbeeInitLed = 1;
embeddedartists 0:50a4a80f3ecd 206
embeddedartists 0:50a4a80f3ecd 207 printf("Node is Up\n");
embeddedartists 0:50a4a80f3ecd 208 while (1) {
embeddedartists 0:50a4a80f3ecd 209
embeddedartists 0:50a4a80f3ecd 210 if (button != buttonState) {
embeddedartists 0:50a4a80f3ecd 211 buttonState = button;
embeddedartists 0:50a4a80f3ecd 212
embeddedartists 0:50a4a80f3ecd 213 data[0] = CMD_BTN_MSG;
embeddedartists 0:50a4a80f3ecd 214 data[1] = buttonState;
embeddedartists 0:50a4a80f3ecd 215
embeddedartists 0:50a4a80f3ecd 216 // Send the button state. In this example we are broadcasting the
embeddedartists 0:50a4a80f3ecd 217 // message to all nodes on the same network (PAN ID). In reality
embeddedartists 0:50a4a80f3ecd 218 // direct messaging is preferred.
embeddedartists 0:50a4a80f3ecd 219 xbee.send(XBEE_ADDRHI_BROADCAST, XBEE_ADDRLO_BROADCAST,
embeddedartists 0:50a4a80f3ecd 220 data, 2, &frameId);
embeddedartists 0:50a4a80f3ecd 221 }
embeddedartists 0:50a4a80f3ecd 222
embeddedartists 0:50a4a80f3ecd 223
embeddedartists 0:50a4a80f3ecd 224 xbee.process();
embeddedartists 0:50a4a80f3ecd 225
embeddedartists 0:50a4a80f3ecd 226 }
embeddedartists 0:50a4a80f3ecd 227 }