7 // define network constants
8 #define MAC_DAVID { 0x90, 0xA2, 0xDA, 0x0D, 0xF4, 0x63 }
9 #define MAC_PANIK { 0x90, 0xA2, 0xDA, 0x00, 0x9A, 0x94 }
10 #define MAC_PANIK2 { 0x90, 0xA2, 0xDA, 0x0E, 0xF3, 0x77 }
11 #define MAC_ADDRESS MAC_PANIK2
13 // include Arduino libraries
19 #include <EthernetUdp.h>
22 // include third party libraries
23 #include "WebServer.h"
25 // include in-house libs
26 #include "PanikSwitch.h" // contains variable types for panik switch
28 // define SD and Ethernet select ports
30 #define ETHERNET_SELECT 10
32 // define machine variables
33 #define DEBOUNCE_TRESHOLD 10 // 10 milliseconds
34 #define ABORT_TRESHOLD 3000L // 3 seconds
35 #define PULSE_TRESHOLD 50 // 50 milliseconds
36 #define BLINK_TRESHOLD 100 // 100 milliseconds
39 #define RELAY_BUTTON_LEDS 5 // Button LED indicator
40 #define RELAY_GREEN_LEDS 6 // ``Non-Stop`` LED indicator
41 #define RELAY_RED_LEDS 8 // ``Studio 1`` LED indicator
42 #define RELAY_YELLOW_LEDS 7 // ``Studio 2`` LED indicator
44 #define RELAY_NONSTOP_OR_STUD 4 // Relay : Non-stop or Studio
45 #define RELAY_STUD1_OR_STUD2 9 // Relay : Studio 1 or Studio 2
48 #define BUTTON1 2 // ``Select`` button
49 #define BUTTON2 3 // ``Confirm`` button
50 #define NONSTOP_VIA_STUD1 14 // is nonstop coming out of studio 1
51 #define NONSTOP_VIA_STUD2 15 // is nonstop coming out of studio 2
55 /* define an array with led pins,
56 indexes in that array correspond to the values of possible selections
57 i.e.: RELAY_GREEN_LEDS: nonstop, RELAY_RED_LEDS: studio1, RELAY_YELLOW_LEDS: studio2
59 const int ledsArray[] = { RELAY_GREEN_LEDS, RELAY_RED_LEDS, RELAY_YELLOW_LEDS };
62 /* activeSelection is the variable that holds the active output of the switch
63 it is declared as an attribute that keeps its value between arduino resets
65 switchSelection_t activeSelection = 0; // __attribute__ ((section (".noinit")));
67 // variables and timers for blinking selection (selected but not confirmed)
68 switchSelection_t blinkingSelection = nonstop;
69 bool blinkingLedState = RELAY_STATE_CLOSED;
70 unsigned long blinkingStartTime = 0, blinkingAbortTime = 0;
73 // declaration of possible button states as enum type
74 typedef enum { nochange, pressed, released } buttonEvent_t;
76 // button event timers
77 unsigned long button1LastEventTime = 0, button2LastEventTime = 0;
79 // variables holding the state of each button
80 // these are used during the debouncing process
81 uint8_t button1State = LOW, button2State = LOW;
83 // variables holding the non-stop status from studios 1 & 2
84 bool nonstop_via_stud1, nonstop_via_stud2;
87 buttonEvent_t debounce( const uint8_t buttonPin,
89 unsigned long *buttonLastEventTime );
91 static uint8_t mac[] = MAC_ADDRESS;
94 // instanciate web server
95 WebServer webserver(PREFIX, 80);
98 // and EthernetUDP instance to send notifications
100 IPAddress udp_remote_ip(192, 168, 17, 224);
107 typedef enum responseStatus { NO_POST, POST_OK, POST_ERROR };
110 inline void notify_udp() // notify over UDP
113 char str_selection[20];
114 snprintf(str_selection, 19, "{\"active\": %d}", activeSelection);
116 Serial.println(F("Sending UDP... "));
117 Serial.println(str_selection);
119 Udp.beginPacket(udp_remote_ip, 1312);
120 Udp.write(str_selection);
126 void webCmd(WebServer &server, WebServer::ConnectionType type, char *url_tail, bool tail_complete)
129 server.httpSuccess("application/json");
131 if (type == WebServer::HEAD)
134 responseStatus response_status = NO_POST;
136 if (type == WebServer::POST)
140 char value[VALUELEN];
143 response_status = POST_ERROR;
145 while (server.readPOSTparam(name, NAMELEN, value, VALUELEN))
147 if (strcmp(name, "s") == 0) {
148 digitalWrite(ledsArray[activeSelection], RELAY_STATE_CLOSED);
149 blinkingSelection = static_cast<switchSelection_t>(atoi(value));
150 activeSelection = static_cast<switchSelection_t>(atoi(value));
151 response_status = POST_OK;
158 server.println(F("{"));
160 server.print(" \"response\": ");
161 server.print(response_status);
163 server.print(",\n \"active\": ");
164 server.print(activeSelection);
166 server.print(",\n \"nonstop-via-stud1\": ");
167 server.print(nonstop_via_stud1);
168 server.print(",\n \"nonstop-via-stud2\": ");
169 server.println(nonstop_via_stud2);
171 server.println(F("}"));
178 blinkingSelection = activeSelection = nonstop;
180 // open serial communication for debugging
182 Serial.println(F("Startup"));
184 // disable SD and Ethernet ports before setup
185 pinMode(SD_SELECT, OUTPUT);
186 digitalWrite(SD_SELECT, HIGH); // disable SD card
187 pinMode(ETHERNET_SELECT, OUTPUT);
188 digitalWrite(ETHERNET_SELECT, HIGH); // disable Ethernet
190 // start SPI (because Ethernet shield needs it)
191 SPI.begin(); // start SPI
194 if (!(Ethernet.begin(mac) == 0)) // start network
195 Serial.println(Ethernet.localIP());
199 Serial.println(F("Network Error"));
204 if (! Udp.begin(1312)) {
206 Serial.println(F("Failed to initiate UDP"));
211 // set mode for used pins
212 pinMode(RELAY_RED_LEDS, OUTPUT);
213 digitalWrite(RELAY_RED_LEDS, RELAY_STATE_CLOSED);
214 pinMode(RELAY_YELLOW_LEDS, OUTPUT);
215 digitalWrite(RELAY_YELLOW_LEDS, RELAY_STATE_CLOSED);
216 pinMode(RELAY_GREEN_LEDS, OUTPUT);
217 digitalWrite(RELAY_GREEN_LEDS, RELAY_STATE_CLOSED);
218 pinMode(RELAY_BUTTON_LEDS, OUTPUT);
219 digitalWrite(RELAY_BUTTON_LEDS, RELAY_STATE_CLOSED);
221 pinMode(RELAY_NONSTOP_OR_STUD, OUTPUT);
222 digitalWrite(RELAY_NONSTOP_OR_STUD, RELAY_STATE_CLOSED);
223 pinMode(RELAY_STUD1_OR_STUD2, OUTPUT);
224 digitalWrite(RELAY_STUD1_OR_STUD2, RELAY_STATE_CLOSED);
226 pinMode(BUTTON1, INPUT);
227 pinMode(BUTTON2, INPUT);
228 pinMode(NONSTOP_VIA_STUD1, INPUT);
229 pinMode(NONSTOP_VIA_STUD2, INPUT);
231 // configure web server pages
232 webserver.setDefaultCommand(&webCmd);
242 // update variables indicating if non-stop is selected in studios 1&2
243 nonstop_via_stud1 = digitalRead(NONSTOP_VIA_STUD1);
244 if (nonstop_via_stud1 == 0)
245 nonstop_via_stud1 = 1;
247 nonstop_via_stud1 = 0;
248 nonstop_via_stud2 = digitalRead(NONSTOP_VIA_STUD2);
249 if (nonstop_via_stud2 == 0)
250 nonstop_via_stud2 = 1;
252 nonstop_via_stud2 = 0;
254 // check if we have a HTTP request (and respond)
255 webserver.processConnection();
257 // handle button 1 (select button)
258 switch ( debounce(BUTTON1, &button1State, &button1LastEventTime) )
264 Serial.println(F("Button 1 pressed"));
266 digitalWrite(ledsArray[blinkingSelection], RELAY_STATE_CLOSED);
268 blinkingStartTime = millis(),
269 blinkingAbortTime = millis();
270 blinkingLedState = RELAY_STATE_OPEN;
274 Serial.println(F("Button 1 released"));
279 // handle button 2 (confirm button)
280 switch ( debounce(BUTTON2, &button2State, &button2LastEventTime) )
286 Serial.println(F("Button 2 pressed"));
288 blinkingAbortTime = 0; // disable blinking auto abort
292 Serial.println(F("Button 2 released"));
294 if (activeSelection != blinkingSelection)
296 digitalWrite(ledsArray[activeSelection], RELAY_STATE_CLOSED);
297 activeSelection = blinkingSelection; // relay states must be changed now
299 Serial.print(F("Active Selection: "));
300 Serial.println(activeSelection);
307 // handle auto abort for blinking led (if any)
308 if ( (blinkingAbortTime != 0) &&
309 ((millis() - blinkingAbortTime) >= ABORT_TRESHOLD) ) {
310 digitalWrite(ledsArray[blinkingSelection], RELAY_STATE_CLOSED);
311 blinkingAbortTime = 0;
312 blinkingSelection = activeSelection;
315 // handle blinking led (if selected is not current state)
316 if (activeSelection != blinkingSelection) {
317 if ((millis() - blinkingStartTime) >= BLINK_TRESHOLD) {
318 digitalWrite(ledsArray[blinkingSelection], blinkingLedState);
319 digitalWrite(RELAY_BUTTON_LEDS, !blinkingLedState);
320 blinkingStartTime = millis();
321 blinkingLedState = !blinkingLedState;
325 digitalWrite(RELAY_BUTTON_LEDS, RELAY_STATE_CLOSED);
328 digitalWrite(ledsArray[activeSelection], RELAY_STATE_OPEN);
330 // update audio channel relays
331 if (activeSelection == nonstop)
333 digitalWrite(RELAY_NONSTOP_OR_STUD, RELAY_STATE_CLOSED);
334 digitalWrite(RELAY_STUD1_OR_STUD2, RELAY_STATE_CLOSED);
336 else if (activeSelection == studio1)
338 digitalWrite(RELAY_NONSTOP_OR_STUD, RELAY_STATE_OPEN);
339 digitalWrite(RELAY_STUD1_OR_STUD2, RELAY_STATE_CLOSED);
341 else if (activeSelection == studio2)
343 digitalWrite(RELAY_NONSTOP_OR_STUD, RELAY_STATE_OPEN);
344 digitalWrite(RELAY_STUD1_OR_STUD2, RELAY_STATE_OPEN);
348 buttonEvent_t debounce( const uint8_t buttonPin,
349 uint8_t *buttonState,
350 unsigned long *buttonLastEventTime )
352 uint8_t buttonLastState = *buttonState;
353 uint8_t buttonReading = digitalRead(buttonPin);
355 if ( (*buttonLastEventTime == 0) &&
356 (*buttonState != buttonReading) ) {
357 // something happened, start the debouncing process
358 *buttonLastEventTime = millis();
361 if (*buttonLastEventTime != 0) {
362 long buttonEventTimer = millis() - *buttonLastEventTime;
364 if ( (buttonEventTimer < DEBOUNCE_TRESHOLD) &&
365 (*buttonState == buttonReading) ) {
366 // noise or bouncing, abort
367 *buttonLastEventTime = 0;
370 if ( (buttonEventTimer >= DEBOUNCE_TRESHOLD) &&
371 (buttonReading != *buttonState) ) {
372 // new button state was maintained
373 *buttonLastEventTime = 0;
374 *buttonState = buttonReading;
378 // debouncing finished, return button state
379 if (*buttonLastEventTime == 0) {
380 // comparing buttonState and buttonLastState tells whether the
381 // button is pressed or released
382 if ( (*buttonState == HIGH) &&
383 (buttonLastState == LOW) ) {
384 // button just pressed
385 buttonLastState = *buttonState;
388 if ( (*buttonState == LOW) &&
389 (buttonLastState == HIGH) ) {
390 // button just released
391 buttonLastState = *buttonState;