Interactive Device Design
Code for the kl25z component of our project - for group Alloy.
Revision 0:85181831ea03, committed 2014-11-10
- Comitter:
- douglasc
- Date:
- Mon Nov 10 17:30:55 2014 +0000
- Commit message:
- initial commit
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/Servo.lib Mon Nov 10 17:30:55 2014 +0000 @@ -0,0 +1,1 @@ +http://developer.mbed.org/users/simon/code/Servo/#36b69a7ced07
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/Window.cpp Mon Nov 10 17:30:55 2014 +0000
@@ -0,0 +1,51 @@
+/* Window.cpp */
+#include "Window.h"
+#include "Servo.h"
+#include "mbed.h"
+
+Window::Window() {}
+
+Window::Window(Servo* s, float timer) {
+ servo = s;
+
+ windowOpen = true;
+
+ // Had to guess and check this value after
+ // the servo was modified to move 360 degrees.
+ servoStop = 0.48;
+
+ // How long it takes for the window to completely
+ // raise or lower.
+ windowMovementTimer = timer;
+
+ // closeWindow();
+}
+
+bool Window::isWindowOpen() {
+ return windowOpen;
+}
+
+bool Window::openWindow() {
+ if (!isWindowOpen()) {
+ servo->write(0.6);
+ windowOpen = true;
+ wait(windowMovementTimer);
+ servo->write(servoStop);
+ windowOpen = true;
+ return true;
+ }
+ // window already open
+ return false;
+}
+
+bool Window::closeWindow() {
+ if (isWindowOpen()) {
+ servo->write(0.35);
+ wait(windowMovementTimer);
+ servo->write(servoStop);
+ windowOpen = false;
+ return true;
+ }
+ // window already closed
+ return false;
+}
\ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/Window.h Mon Nov 10 17:30:55 2014 +0000
@@ -0,0 +1,24 @@
+/* Window.h */
+
+#ifndef WINDOW_H
+#define WINDOW_H
+
+#include "Servo.h"
+#include "mbed.h"
+
+class Window {
+private:
+ bool windowOpen;
+ float servoStop;
+ float windowMovementTimer;
+ Servo* servo;
+ Serial* pc;
+public:
+ Window();
+ Window(Servo* s, float timer);
+ bool isWindowOpen();
+ bool openWindow();
+ bool closeWindow();
+};
+
+#endif
\ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Mon Nov 10 17:30:55 2014 +0000
@@ -0,0 +1,149 @@
+/**
+ * Interactive Device Design, Fall 2014
+ * Homework 5 - Wind and Window controller
+ * Freescale Freedom KL25Z Board
+ *
+ * Ian Shain
+ * Doug Cook
+ * Kiyana Salkeld
+ * Elizabeth Lin
+ *
+ */
+
+#include "mbed.h"
+#include "Servo.h"
+#include "Window.h"
+#include <string>
+
+Serial pc(USBTX, USBRX);
+Serial ble(PTC4,PTC3); // PTC4 (purple) -> TX, PTC3 (gray) -> RX
+const float ANALOG_HALF = 0.499;
+const float ANALOG_DELTA = 0.011;
+const float ANALOG_RANGE = 0.5;
+
+DigitalOut red = LED_RED;
+DigitalOut green = LED_GREEN;
+DigitalOut blue = LED_BLUE;
+
+// converts a voltage reading to a percent
+double getAnalogPercent(float in) {
+ return ((double)in / ANALOG_RANGE) * 100.0;
+}
+
+// filter out garbage from the serial line
+const char* validCodes = "abcdefgh0123456789";
+bool isValidCode(char c) {
+ for (int i = 0; validCodes[i] != '\0'; i++) {
+ if (c == validCodes[i]) {
+ return true;
+ }
+ }
+ // pc.printf("invalid code detected: %c \r\n",c);
+ return false;
+}
+
+char ble_CODE;
+string ble_NUM_str = "";
+int ble_NUM;
+bool serialMessageAvailable = false;
+void bleCallback() {
+ if (ble_CODE == 'z') {
+ char in = ble.getc();
+ if (isValidCode(in)) {
+ ble_CODE = in;
+ } else {
+ return;
+ }
+ } else {
+ char in = ble.getc();
+ if (isValidCode(in)) {
+ ble_CODE = in;
+ } else {
+ return;
+ }
+ ble_NUM_str += ble.getc();
+ }
+ serialMessageAvailable = true;
+}
+
+int main() {
+ // servo control for Window automation
+ Servo s(D7);
+ Window window(& s, 4.0);
+ window.closeWindow();
+
+ // status indicators
+ red = 1;
+ green = 1;
+ blue = 1;
+
+ // motor for anemometer
+ AnalogIn motor(A0);
+ AnalogOut motorBase(PTE30);
+ motorBase.write(0.1);//(0.5);
+ string motorSpeed = "";
+
+ // serial
+ ble.baud(9600);
+ ble.format(8,Serial::Odd,1);
+ ble.attach(bleCallback);
+
+ while(1) {
+ // check for messages
+ if (serialMessageAvailable) {
+ switch(ble_CODE) {
+ case 'a':
+ pc.printf("update minimum wind threshold to: ... \r\n");
+ break;
+ case 'b':
+ pc.printf("update maximum wind threshold to: ... \r\n");
+ break;
+ case 'c':
+ pc.printf("open window. \r\n");
+ if (!window.isWindowOpen()) {
+ window.openWindow();
+ }
+ break;
+ case 'd':
+ pc.printf("close window. \r\n");
+ if (window.isWindowOpen()) {
+ window.closeWindow();
+ }
+ break;
+ case 'e':
+ pc.printf("initializing BLE device. \r\n");
+ red = 0;
+ wait(0.75);
+ red = 1;
+ break;
+ case 'f':
+ pc.printf("restarting ble advertising. \r\n");
+ break;
+ case 'g':
+ pc.printf("current wind speed: ... \r\n");
+ break;
+ case 'h':
+ pc.printf("BLE device disconnected. \r\n");
+ break;
+ default:
+ // pc.printf("uknown code received from BLE device: %c\r\n",ble_CODE);
+ break;
+ }
+ ble_CODE = 'z'; // flag indicating no code set
+ serialMessageAvailable = false;
+ }
+
+ // center input at zero (no wind is blowing)
+ float val = motor.read() - ANALOG_HALF;
+ float absoluteVal = abs(val);
+ if (val < 0.0 - ANALOG_DELTA) {
+ pc.printf("motor is turning NORTH %02f percent \r\n",getAnalogPercent(absoluteVal));
+ } else if (val > 0.0 + ANALOG_DELTA) {
+ pc.printf("motor is turning SOUTH %02f percent \r\n",getAnalogPercent(absoluteVal));
+ }
+ // transmit data to BLE
+ ble.printf("%.0f",getAnalogPercent(absoluteVal));
+
+ wait(.5);
+ }
+}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Mon Nov 10 17:30:55 2014 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/031413cf7a89 \ No newline at end of file