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AtemTail_v2/AtemTail_v2.ino

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+/*****************
+  Tally light ESP32 for Blackmagic ATEM switcher
+
+  Version 2.0
+
+  A wireless (WiFi) tally light for Blackmagic Design
+  ATEM video switchers, based on the M5StickC ESP32 development
+  board and the Arduino IDE.
+
+  For more information, see:
+  https://oneguyoneblog.com/2020/06/13/tally-light-esp32-for-blackmagic-atem-switcher/
+
+  Based on the work of Kasper Skårhøj:
+  https://github.com/kasperskaarhoj/SKAARHOJ-Open-Engineering
+
+******************/
+
+#include <ESP8266WiFi.h>
+#include <SkaarhojPgmspace.h>
+#include <ATEMbase.h>
+#include <ATEMstd.h>
+
+IPAddress switcherIp(192, 168, 0, 101);       // IP address of the ATEM switcher
+ATEMstd AtemSwitcher;
+
+// WiFi parameters
+#define WLAN_SSID       "atem"
+#define WLAN_PASS       "tuxiatem"
+
+String newHostname = "CamTally_4";
+
+// LED PIN DEFINE
+#define LED_BUILTIN  D4
+#define ledPin1 D1
+#define ledPin2 D2
+
+int cameraNumber = 4;
+
+//int LED_BUILTIN = 2;
+//int ledPin1 = 4;
+//int ledPin2 = 5;
+
+int PreviewTallyPrevious = 1;
+int ProgramTallyPrevious = 1;
+
+void setup() {
+
+  Serial.begin(9600);
+  WiFi.mode(WIFI_STA);
+  
+  pinMode(ledPin1, OUTPUT);  // LED: 1 is on Program (Tally)
+  pinMode(ledPin2, OUTPUT); // LED: 2 is on Preview (Tally)
+  pinMode(LED_BUILTIN, OUTPUT); // LED: Status online
+  
+    
+  Serial.println(); Serial.println(); // Connect to WiFi access point.
+  delay(10);
+  Serial.print(F("Connecting to "));
+  Serial.println(WLAN_SSID);
+
+  WiFi.hostname(newHostname.c_str()); //Set new hostname
+  Serial.printf("New hostname: %s\n", WiFi.hostname().c_str()); //Get Current Hostname
+
+  WiFi.begin(WLAN_SSID, WLAN_PASS);
+   while (WiFi.status() != WL_CONNECTED) {
+    delay(500);
+    Serial.print(F("."));
+  }
+  Serial.println();
+
+  Serial.println(F("WiFi connected"));
+  Serial.print(F("IP address: "));
+  Serial.println(WiFi.localIP());
+  Serial.print("RRSI: ");
+  Serial.println(WiFi.RSSI());
+  
+  digitalWrite(LED_BUILTIN, LOW); // ON
+  digitalWrite(ledPin1, HIGH); // off
+  digitalWrite(ledPin2, HIGH); // off
+
+  // Initialize a connection to the switcher:
+  AtemSwitcher.begin(switcherIp);
+  AtemSwitcher.serialOutput(0x80);
+  AtemSwitcher.connect();
+}
+
+void loop() {
+
+  // Check for packets, respond to them etc. Keeping the connection alive!
+  AtemSwitcher.runLoop();
+
+  int ProgramTally = AtemSwitcher.getProgramTally(cameraNumber);
+  int PreviewTally = AtemSwitcher.getPreviewTally(cameraNumber);
+
+  if ((ProgramTallyPrevious != ProgramTally) || (PreviewTallyPrevious != PreviewTally)) { // changed?
+
+    if ((ProgramTally && !PreviewTally) || (ProgramTally && PreviewTally) ) { // only program, or program AND preview
+        digitalWrite(ledPin1, HIGH);
+        digitalWrite(ledPin2, LOW);
+    } else if (PreviewTally && !ProgramTally) { // only preview
+        digitalWrite(ledPin2, LOW);
+    } else if (!PreviewTally || !ProgramTally) { // neither
+        digitalWrite(ledPin1, LOW);
+        digitalWrite(ledPin2, HIGH);
+    }
+
+  }
+
+  ProgramTallyPrevious = ProgramTally;
+  PreviewTallyPrevious = PreviewTally;
+}
+
+void drawLabel(unsigned long int screenColor, unsigned long int labelColor, bool ledValue) {
+  digitalWrite(ledPin1, ledValue);
+  digitalWrite(ledPin2, ledValue);
+}