Quicksand micro-electronics
This program simulates a dual dice throw by pushing the 2 buttons on the QW dev kit. The results of the throw are shown in binary on the leds, printed in the console window and transmitted via Sigfox.
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QW-BinaryDices
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Quicksand
QW Binary Dices
This program simulates a dual dice throw by pushing the 2 buttons on the QW dev kit. The results of the throw are shown in binary on the leds, printed in the console window and transmitted via Sigfox.
Code explanation
The program starts with the initialisation/declaration of the leds and pushbuttons. Also the necessary function prototypes and serial communications are declared. After that, the program enters an infinite loop and waits till both buttons have been pushed. Once both buttons have been pushed, the result is shown in binary on the leds (LED_3 = LSB), printed in the console window and transmitted via Sigfox. When the Sigfox message is transmitted, the program is ready to throw the dices again.
Sigfox message payload
First there is the "04", this is the Quicksand ID of the example program. This is used by Quicksand to keep track of our example programs. The second value that is transmitted is the number that was thrown by the dices.
More information and other example code can be found on the component page by clicking the link below: https://developer.mbed.org/components/QW-SIGFOX-Development-Kit/
main.cpp
- Committer:
- quicksandjonas
- Date:
- 2016-12-13
- Revision:
- 1:00a17f5a247c
- Parent:
- 0:6c17d1a79f75
File content as of revision 1:00a17f5a247c:
/* This program demonstrates how to use the board to simulate a dual dice throw.
* The result is displayed in binary on the leds and transmitted via Sigfox.
* Open a serial console to the board to see extra info.
*/
#include "mbed.h"
#include <stdio.h>
#include <stdlib.h>
#define SER_BUFFER_SIZE 32
/* The 4 onboard LEDs */
DigitalOut LED_0 (PB_6);
DigitalOut LED_1 (PA_7);
DigitalOut LED_2 (PA_6);
DigitalOut LED_3 (PA_5);
/* The 2 user buttons */
InterruptIn SW1(PA_8);
InterruptIn SW2(PB_10);
/* Function prototypes */
void sw1interrupt();
void sw2interrupt();
void sertmout();
bool modem_command_check_ok(char * command);
void modem_setup();
bool ser_timeout = false;
/* Serial port over USB */
Serial pc(USBTX, USBRX);
/* Serial connection to sigfox modem */
Serial modem(PA_9, PA_10);
bool dice1 = false;
bool dice2 = false;
uint8_t dice1val;
uint8_t dice2val;
uint8_t number;
int main() {
time_t t;
/* Setup TD120x */
wait(3);
modem_setup();
/* Turn off all LED */
LED_0 = 1;
LED_1 = 1;
LED_2 = 1;
LED_3 = 1;
/* Setup button interrupts */
SW1.fall(&sw1interrupt);
SW2.fall(&sw2interrupt);
/* Intializes random number generator */
srand((unsigned) time(&t));
while(1) {
if(dice1 == true && dice2 == true){
number = dice1val + dice2val;
pc.printf("\nThe number is: %d\n\r", number);
switch(number) {
case 2 :
LED_0 = 1;
LED_1 = 1;
LED_2 = 0;
LED_3 = 1;
break;
case 3 :
LED_0 = 1;
LED_1 = 1;
LED_2 = 0;
LED_3 = 0;
break;
case 4 :
LED_0 = 1;
LED_1 = 0;
LED_2 = 1;
LED_3 = 1;
break;
case 5 :
LED_0 = 1;
LED_1 = 0;
LED_2 = 1;
LED_3 = 0;
break;
case 6 :
LED_0 = 1;
LED_1 = 0;
LED_2 = 0;
LED_3 = 1;
break;
case 7 :
LED_0 = 1;
LED_1 = 0;
LED_2 = 0;
LED_3 = 0;
break;
case 8 :
LED_0 = 0;
LED_1 = 1;
LED_2 = 1;
LED_3 = 1;
break;
case 9 :
LED_0 = 0;
LED_1 = 1;
LED_2 = 1;
LED_3 = 0;
break;
case 10 :
LED_0 = 0;
LED_1 = 1;
LED_2 = 0;
LED_3 = 1;
break;
case 11 :
LED_0 = 0;
LED_1 = 1;
LED_2 = 0;
LED_3 = 0;
break;
case 12 :
LED_0 = 0;
LED_1 = 0;
LED_2 = 1;
LED_3 = 1;
break;
default :
pc.printf("\nImpossible number!!\n\r");
LED_0 = 1;
LED_1 = 1;
LED_2 = 1;
LED_3 = 1;
}
char command[SER_BUFFER_SIZE];
sprintf(command, "AT$SF=04%04x,2,0\n", (int) number );
pc.printf("Sending thrown number = %i over Sigfox using modem command: %s\n", number , command);
modem_command_check_ok(command);
//wait_ms(5000);
LED_0 = 1;
LED_1 = 1;
LED_2 = 1;
LED_3 = 1;
dice1 = false;
dice2 = false;
}
}
}
void modem_setup()
{
/* Reset to factory defaults */
if(modem_command_check_ok("AT&F"))
{
pc.printf("Factory reset succesfull\r\n");
}
else
{
pc.printf("Factory reset TD120x failed\r\n");
}
/* Disable local echo */
modem.printf("ATE0\n");
if(modem_command_check_ok("ATE0"))
{
pc.printf("Local echo disabled\r\n");
}
/* Write to mem */
if(modem_command_check_ok("AT&W"))
{
pc.printf("Settings saved!\r\n");
}
}
bool modem_command_check_ok(char * command)
{
/* first clear serial data buffers */
while(modem.readable()) modem.getc();
/* Timeout for response of the modem */
Timeout tmout;
ser_timeout = false;
/* Buffer for incoming data */
char responsebuffer[6];
/* Flag to set when we get 'OK' response */
bool ok = false;
bool error = false;
/* Print command to TD120x */
modem.printf(command);
/* Newline to activate command */
modem.printf("\n");
/* Wait untill serial feedback, min 7 seconds before timeout */
tmout.attach(&sertmout, 7.0);
while(!modem.readable()&& ser_timeout == false);
while(!ok && !ser_timeout && !error)
{
if(modem.readable())
{
for(int i = 0; i < 5; i++)
{
responsebuffer[i] = responsebuffer[i+1];
}
responsebuffer[5] = modem.getc();
if(responsebuffer[0] == '\r' && responsebuffer[1] == '\n' && responsebuffer[2] == 'O' && responsebuffer[3] == 'K' && responsebuffer[4] == '\r' && responsebuffer[5] == '\n' )
{
ok = true;
}
else if(responsebuffer[0] == '\r' && responsebuffer[1] == '\n' && responsebuffer[2] == 'E' && responsebuffer[3] == 'R' && responsebuffer[4] == 'R' && responsebuffer[5] == 'O' )
{
error = true;
}
}
}
tmout.detach();
return ok;
}
/* Button 1 ISR */
void sw1interrupt()
{
if(dice1 == false){
pc.printf("\nDice 1 has been thrown\n\r");
dice1 = true;
dice1val = (rand() % 6)+1;
}
else{
pc.printf("\nDice 1 has already been thrown\n\r");
}
}
/* Button 2 ISR */
void sw2interrupt()
{
if(dice2 == false){
pc.printf("\nDice 2 has been thrown\n\r");
dice2 = true;
dice2val = (rand() % 6)+1;
}
else{
pc.printf("\nDice 2 has already been thrown\n\r");
}
}
/* ISR for serial timeout */
void sertmout()
{
ser_timeout = true;
}