Nicholas Herriot / Mbed 2 deprecated VodaDemoDoorControl

Door controller and proximity switch detection.

Dependencies:   mbed-rtos mbed VodafoneUSBModem_bleedingedge

This program takes in a digital input - which is a reed switch for a door - and an output to a relay. The door is open with a simple 'text' to the modem on the USB bus (i used k3770 vodafone dongle).

The door will send an alarm message to your nominated numbers at the start of the program if the door is open without a command being sent.

Very simple - and just meant as a demonstration of how to incorporate GSM/3G functionality to a evice.

main.cpp@10:c8a6f2822068, 2012-09-18 (annotated)

Committer:
nherriot
Date:
Tue Sep 18 15:20:28 2012 +0000
Revision:
10:c8a6f2822068
Parent:
8:1b4e84f4c451
Child:
11:769f2b28b236
small changes to show it working

Who changed what in which revision?

UserRevisionLine numberNew contents of line
nherriot 0:5136cdfaebd0 1 /* net_sms_test.cpp */
nherriot 0:5136cdfaebd0 2 /*
nherriot 0:5136cdfaebd0 3 Copyright (C) 2012 ARM Limited.
nherriot 0:5136cdfaebd0 4
nherriot 0:5136cdfaebd0 5 Permission is hereby granted, free of charge, to any person obtaining a copy of
nherriot 0:5136cdfaebd0 6 this software and associated documentation files (the "Software"), to deal in
nherriot 0:5136cdfaebd0 7 the Software without restriction, including without limitation the rights to
nherriot 0:5136cdfaebd0 8 use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
nherriot 0:5136cdfaebd0 9 of the Software, and to permit persons to whom the Software is furnished to do
nherriot 0:5136cdfaebd0 10 so, subject to the following conditions:
nherriot 0:5136cdfaebd0 11
nherriot 0:5136cdfaebd0 12 The above copyright notice and this permission notice shall be included in all
nherriot 0:5136cdfaebd0 13 copies or substantial portions of the Software.
nherriot 0:5136cdfaebd0 14
nherriot 0:5136cdfaebd0 15 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
nherriot 0:5136cdfaebd0 16 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
nherriot 0:5136cdfaebd0 17 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
nherriot 0:5136cdfaebd0 18 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
nherriot 0:5136cdfaebd0 19 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
nherriot 0:5136cdfaebd0 20 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
nherriot 0:5136cdfaebd0 21 SOFTWARE.
nherriot 0:5136cdfaebd0 22 */
nherriot 0:5136cdfaebd0 23
nherriot 0:5136cdfaebd0 24 #define __DEBUG__ 4 //Maximum verbosity
nherriot 0:5136cdfaebd0 25 #ifndef __MODULE__
nherriot 6:5a892c3d738e 26 // #define __MODULE__ "net_voda_k3770_test.cpp"
nherriot 0:5136cdfaebd0 27 #endif
nherriot 0:5136cdfaebd0 28
nherriot 0:5136cdfaebd0 29 #define MY_PHONE_NUMBER "+447717275049"
nherriot 0:5136cdfaebd0 30
nherriot 0:5136cdfaebd0 31 #include "core/fwk.h"
nherriot 0:5136cdfaebd0 32 #include "mbed.h"
nherriot 0:5136cdfaebd0 33 #include "rtos.h"
nherriot 10:c8a6f2822068 34 #include "VodafoneUSBModem.h"
nherriot 0:5136cdfaebd0 35
nherriot 2:bcc9256ecaab 36 #include <string>
nherriot 2:bcc9256ecaab 37
nherriot 0:5136cdfaebd0 38 extern "C" void HardFault_Handler() {
nherriot 0:5136cdfaebd0 39 error("Hard Fault!\n");
nherriot 0:5136cdfaebd0 40 }
nherriot 0:5136cdfaebd0 41
nherriot 8:1b4e84f4c451 42 DigitalOut led1(LED1); // LED 1 is used to show the state of the door. ON is door open, and OFF is door close.
nherriot 7:316c2dac06a5 43 DigitalOut led2(LED2);
nherriot 8:1b4e84f4c451 44 DigitalOut led3(LED3); // LED 3 is use to indicate if the relay is being switched on to open the door
nherriot 7:316c2dac06a5 45 DigitalOut led4(LED4);
nherriot 8:1b4e84f4c451 46 DigitalOut doorContactorRelay(p5); // create a digital pin object to control the door contactor relay
nherriot 10:c8a6f2822068 47 DigitalIn doorProximitySwitch(p6); // create a digital pin object to sense door position proximity switch, this works in reverse
nherriot 8:1b4e84f4c451 48 // the switch senses positive when the door is closed - need to be sure when it's closed! :-)
nherriot 8:1b4e84f4c451 49 bool openTheDoor = false; // create a state variable which is set to indicate the mbed should open the door
nherriot 8:1b4e84f4c451 50 // this variable will be used hold the latch open until it knows the door has been open.
nherriot 10:c8a6f2822068 51 int read_digital(void) {
nherriot 10:c8a6f2822068 52 DigitalIn mydigital(p6);
nherriot 10:c8a6f2822068 53 return(mydigital.read());
nherriot 10:c8a6f2822068 54 }
nherriot 0:5136cdfaebd0 55
nherriot 0:5136cdfaebd0 56 void test(void const*) {
nherriot 10:c8a6f2822068 57 VodafoneUSBModem connectionManager; // create a connection manager object
nherriot 0:5136cdfaebd0 58
nherriot 1:3c9d0c9dffa4 59 DBG("Hello world and Vodafone K3770 test program!");
nherriot 0:5136cdfaebd0 60
nherriot 7:316c2dac06a5 61 connectionManager.sendSM(MY_PHONE_NUMBER, "Hello from mbed door controller:)");
nherriot 0:5136cdfaebd0 62
nherriot 10:c8a6f2822068 63 char num[17]; // create a buffer to hold the telephone number in
nherriot 10:c8a6f2822068 64 char msg[160]; // create a buffer to hold the text message in
nherriot 10:c8a6f2822068 65 size_t count;
nherriot 10:c8a6f2822068 66
nherriot 0:5136cdfaebd0 67 while(true)
nherriot 0:5136cdfaebd0 68 {
nherriot 8:1b4e84f4c451 69
nherriot 8:1b4e84f4c451 70 // if this state variable has been set I need to keep the doorContactor on until the door is open
nherriot 8:1b4e84f4c451 71 if ((openTheDoor) || (doorProximitySwitch.read() == 0))
nherriot 3:0a8eebcb0acf 72 {
nherriot 8:1b4e84f4c451 73
nherriot 8:1b4e84f4c451 74 doorContactorRelay = 0; // door must be open now so switch relay off.
nherriot 8:1b4e84f4c451 75 openTheDoor = false; // the door is open now so set it to false.
nherriot 8:1b4e84f4c451 76 led3 = 0; // switch the LED light off to indicate I'm switching the relay off
nherriot 8:1b4e84f4c451 77
nherriot 8:1b4e84f4c451 78 }
nherriot 3:0a8eebcb0acf 79
nherriot 8:1b4e84f4c451 80 // check the state of the door and switch the LED light to 'ON' for door open and 'OFF' for door closed.
nherriot 10:c8a6f2822068 81 //if (doorProximitySwitch.read() == 0)
nherriot 10:c8a6f2822068 82 if (read_digital() == 0)
nherriot 8:1b4e84f4c451 83 {
nherriot 8:1b4e84f4c451 84 DBG("The door proximity switch is: %d so I think it's open", doorProximitySwitch.read() );
nherriot 8:1b4e84f4c451 85 led1 = 1;
nherriot 3:0a8eebcb0acf 86 }
nherriot 8:1b4e84f4c451 87 else
nherriot 8:1b4e84f4c451 88 {
nherriot 8:1b4e84f4c451 89 DBG("The door proximity switch is: %d so I think it's closed", doorProximitySwitch.read() );
nherriot 8:1b4e84f4c451 90 led1 = 0;
nherriot 8:1b4e84f4c451 91 }
nherriot 8:1b4e84f4c451 92
nherriot 8:1b4e84f4c451 93
nherriot 8:1b4e84f4c451 94
nherriot 7:316c2dac06a5 95 int ret = connectionManager.getSMCount(&count); // check to see if there is an incoming SMS message
nherriot 0:5136cdfaebd0 96 if(ret)
nherriot 0:5136cdfaebd0 97 {
nherriot 0:5136cdfaebd0 98 WARN("getSMCount returned %d", ret);
nherriot 10:c8a6f2822068 99 Thread::wait(125);
nherriot 0:5136cdfaebd0 100 continue;
nherriot 0:5136cdfaebd0 101 }
nherriot 10:c8a6f2822068 102
nherriot 10:c8a6f2822068 103 DBG("The SMS count is now at: %d for this modem", count);
nherriot 7:316c2dac06a5 104 if( count > 0) // if there are messages in the mailbox start pulling them off the queue
nherriot 0:5136cdfaebd0 105 {
nherriot 0:5136cdfaebd0 106 DBG("%d SMS to read", count);
nherriot 10:c8a6f2822068 107 ret = connectionManager.getSM(num, msg, 160);
nherriot 8:1b4e84f4c451 108
nherriot 0:5136cdfaebd0 109 if(ret)
nherriot 0:5136cdfaebd0 110 {
nherriot 0:5136cdfaebd0 111 WARN("getSM returned %d", ret);
nherriot 10:c8a6f2822068 112 Thread::wait(125);
nherriot 0:5136cdfaebd0 113 continue;
nherriot 0:5136cdfaebd0 114 }
nherriot 0:5136cdfaebd0 115
nherriot 6:5a892c3d738e 116 DBG("The message is from number: %s and the message is: \"%s\"", num, msg);
nherriot 6:5a892c3d738e 117
nherriot 8:1b4e84f4c451 118 if (strcmp (msg, "open") ==0)
nherriot 8:1b4e84f4c451 119 {
nherriot 2:bcc9256ecaab 120 DBG("The SMS message indicates I should open the door");
nherriot 7:316c2dac06a5 121
nherriot 7:316c2dac06a5 122 // check the door is not already open if it is do nothing and send a warning back to the sender
nherriot 7:316c2dac06a5 123 // for this door the switch 'true' then its closed - we have to have an active signal to show it's securely closed
nherriot 8:1b4e84f4c451 124
nherriot 7:316c2dac06a5 125 if ( doorProximitySwitch.read() == 0)
nherriot 7:316c2dac06a5 126 {
nherriot 7:316c2dac06a5 127 DBG("The door is already open - so I'll do nothing");
nherriot 8:1b4e84f4c451 128 connectionManager.sendSM(num, " WARNING - The door is already open sir! ");
nherriot 7:316c2dac06a5 129 }
nherriot 7:316c2dac06a5 130 else
nherriot 7:316c2dac06a5 131 {
nherriot 7:316c2dac06a5 132 doorContactorRelay = 1;
nherriot 8:1b4e84f4c451 133 openTheDoor = true; // set the state vairable to let the door contoller know it needs to open the door
nherriot 7:316c2dac06a5 134 led3 = 1;
nherriot 7:316c2dac06a5 135 DBG("The relay has been activated to open the door");
nherriot 8:1b4e84f4c451 136 connectionManager.sendSM(num, " Door open sir... Welcome home! " );
nherriot 8:1b4e84f4c451 137 }
nherriot 8:1b4e84f4c451 138 }
nherriot 8:1b4e84f4c451 139 else
nherriot 8:1b4e84f4c451 140 {
nherriot 2:bcc9256ecaab 141 DBG("The SMS message is not recognized");
nherriot 7:316c2dac06a5 142 connectionManager.sendSM(num, " Wrong password sir... Try 'open' and I'll open! ;-) ");
nherriot 2:bcc9256ecaab 143 }
nherriot 2:bcc9256ecaab 144
nherriot 2:bcc9256ecaab 145
nherriot 2:bcc9256ecaab 146
nherriot 0:5136cdfaebd0 147 }
nherriot 6:5a892c3d738e 148 Thread::wait(500);
nherriot 0:5136cdfaebd0 149 }
nherriot 0:5136cdfaebd0 150
nherriot 0:5136cdfaebd0 151 }
nherriot 0:5136cdfaebd0 152
nherriot 0:5136cdfaebd0 153 void keepAlive(void const*) {
nherriot 0:5136cdfaebd0 154 while(1)
nherriot 0:5136cdfaebd0 155 {
nherriot 8:1b4e84f4c451 156 led2=!led2;
nherriot 0:5136cdfaebd0 157 Thread::wait(500);
nherriot 0:5136cdfaebd0 158 }
nherriot 0:5136cdfaebd0 159 }
nherriot 0:5136cdfaebd0 160
nherriot 0:5136cdfaebd0 161 void tick()
nherriot 0:5136cdfaebd0 162 {
nherriot 0:5136cdfaebd0 163 led4=!led4;
nherriot 0:5136cdfaebd0 164 }
nherriot 0:5136cdfaebd0 165
nherriot 0:5136cdfaebd0 166 int main() {
nherriot 0:5136cdfaebd0 167 Ticker t;
nherriot 0:5136cdfaebd0 168 t.attach(tick,1);
nherriot 0:5136cdfaebd0 169 DBG_INIT();
nherriot 0:5136cdfaebd0 170
nherriot 0:5136cdfaebd0 171 Thread testTask(test, NULL, osPriorityNormal, 1024*4);
nherriot 6:5a892c3d738e 172 // keepAlive(NULL);
nherriot 0:5136cdfaebd0 173
nherriot 0:5136cdfaebd0 174
nherriot 0:5136cdfaebd0 175 return 0;
nherriot 0:5136cdfaebd0 176 }