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72 lines
2.0 KiB
72 lines
2.0 KiB
14 years ago
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#ifdef shell
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gcc -o ${0//.c/} $0 -lxbee
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exit
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}
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#endif
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/*
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libxbee - a C library to aid the use of Digi's Series 1 XBee modules
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running in API mode (AP=2).
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Copyright (C) 2009 Attie Grande (attie@attie.co.uk)
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/* this sample will output the voltage read from analog 0 */
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#include <stdio.h>
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#include <stdlib.h>
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#include <xbee.h>
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/* set this to the voltage measured between GND and Vref - 3.3 is a good place to start */
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#define Vref 3.3
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int main(int argc, char *argv[]) {
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xbee_con *con;
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xbee_pkt *pkt;
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int i;
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/* setup libxbee */
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if (xbee_setup("/dev/ttyUSB0",57600) == -1) {
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return 1;
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}
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/* get a connection to the remote XBee */
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con = xbee_newcon('I',xbee_64bitIO, 0x13A200, 0x403CB26A);
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/* do this forever! */
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while (1) {
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/* get as many packets as we can */
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while ((pkt = xbee_getpacket(con)) != NULL) {
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for (i = 0; i < pkt->samples; i++) {
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/* did we get a value for A0? */
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if (!xbee_hasanalog(pkt,i,0)) {
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/* there was no data for A0 in the packet */
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printf("A0: -- No Data --\n");
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continue;
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}
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/* print out the reading in raw, and adjusted */
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printf("A0: %.0f (~%.2fv)\n",
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xbee_getanalog(pkt,i,0,0),
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xbee_getanalog(pkt,i,0,Vref));
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fflush(stdout);
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}
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/* release the packet */
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free(pkt);
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}
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usleep(100);
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}
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return 0;
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}
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