Arrow Intern IoT / Mbed 2 deprecated XBee_User_Button

Install on (2) Nucleo-L053R8's with an XBee PRO 900HP on the PA_9 and PA_10 serial pins. When the user button is pressed on one of the Nucleos, the LED flashes on the other.

Dependencies:   SoftSerial mbed

main.cpp@0:be753a471114, 2017-06-23 (annotated)

Committer:
jmckneel
Date:
Fri Jun 23 16:45:06 2017 +0000
Revision:
0:be753a471114
0001 Enabled user button communication between two Nucleo boards

Who changed what in which revision?

UserRevisionLine numberNew contents of line
jmckneel 0:be753a471114 1 /* -----------------------------------------------------------------------------
jmckneel 0:be753a471114 2 Author: Jared McKneely
jmckneel 0:be753a471114 3 Title: End-node firmware v. 1.0.0
jmckneel 0:be753a471114 4 Date: June 8th, 2017
jmckneel 0:be753a471114 5 Description:
jmckneel 0:be753a471114 6
jmckneel 0:be753a471114 7 ----------------------------------------------------------------------------- */
jmckneel 0:be753a471114 8
jmckneel 0:be753a471114 9 // Libraries -------------------------------------------------------------------
jmckneel 0:be753a471114 10 #include "mbed.h"
jmckneel 0:be753a471114 11 #include "SoftSerial.h"
jmckneel 0:be753a471114 12
jmckneel 0:be753a471114 13 // Macros ----------------------------------------------------------------------
jmckneel 0:be753a471114 14 #define LED_ON (1)
jmckneel 0:be753a471114 15 #define LED_OFF (0)
jmckneel 0:be753a471114 16 #define TX (PB_3)
jmckneel 0:be753a471114 17 #define RX (PA_10)
jmckneel 0:be753a471114 18
jmckneel 0:be753a471114 19 // Hardware Objects ------------------------------------------------------------
jmckneel 0:be753a471114 20 DigitalOut led(LED1);
jmckneel 0:be753a471114 21 InterruptIn button(USER_BUTTON);
jmckneel 0:be753a471114 22 InterruptIn receive(PA_10);
jmckneel 0:be753a471114 23
jmckneel 0:be753a471114 24 // Globals ---------------------------------------------------------------------
jmckneel 0:be753a471114 25 SoftSerial xb(TX, RX);
jmckneel 0:be753a471114 26 char tx = 'e';
jmckneel 0:be753a471114 27 char rx = '0';
jmckneel 0:be753a471114 28
jmckneel 0:be753a471114 29 // send_light ------------------------------------------------------------------
jmckneel 0:be753a471114 30 void send_light(void){
jmckneel 0:be753a471114 31 if (xb.writeable()){
jmckneel 0:be753a471114 32 xb.putc(tx);
jmckneel 0:be753a471114 33 }
jmckneel 0:be753a471114 34 }
jmckneel 0:be753a471114 35
jmckneel 0:be753a471114 36 // blink_light -----------------------------------------------------------------
jmckneel 0:be753a471114 37 void blink_light(void){
jmckneel 0:be753a471114 38 led = LED_OFF;
jmckneel 0:be753a471114 39 led = LED_ON;
jmckneel 0:be753a471114 40 wait(0.05);
jmckneel 0:be753a471114 41 led = LED_OFF;
jmckneel 0:be753a471114 42 }
jmckneel 0:be753a471114 43
jmckneel 0:be753a471114 44 // rx_process ------------------------------------------------------------------
jmckneel 0:be753a471114 45 void rx_process(void){
jmckneel 0:be753a471114 46
jmckneel 0:be753a471114 47 }
jmckneel 0:be753a471114 48
jmckneel 0:be753a471114 49 // Main ------------------------------------------------------------------------
jmckneel 0:be753a471114 50 int main() {
jmckneel 0:be753a471114 51
jmckneel 0:be753a471114 52 // Enable interrupt
jmckneel 0:be753a471114 53 button.rise(&send_light);
jmckneel 0:be753a471114 54 receive.rise(&rx_process);
jmckneel 0:be753a471114 55
jmckneel 0:be753a471114 56 // While loop
jmckneel 0:be753a471114 57 while (true){
jmckneel 0:be753a471114 58 if (xb.readable()){
jmckneel 0:be753a471114 59 rx = xb.getc();
jmckneel 0:be753a471114 60 if (rx == 'e'){
jmckneel 0:be753a471114 61 blink_light();
jmckneel 0:be753a471114 62 rx = '0';
jmckneel 0:be753a471114 63 }
jmckneel 0:be753a471114 64 }
jmckneel 0:be753a471114 65 wait(0.1);
jmckneel 0:be753a471114 66 }
jmckneel 0:be753a471114 67 }