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ATEMSimpleTally.ino
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ATEMSimpleTally.ino
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#ifdef ESP32
#include <WiFi.h>
#include <ESPmDNS.h>
#include <WiFiClient.h>
#include <WebServer.h>
#else
#include <ESP8266WiFi.h>
#include <WiFiClient.h>
#include <ESP8266WebServer.h>
#include <ESP8266mDNS.h>
#endif
// Very simple ESP-01 ESP8266 ATEM Mini Tally
// Setup WiFi and default ATEM IP in setup.h
// Make a copy setup.h.sample to setup.h and adjust for your setup
//
#include "setup.h"
/**
*
OUTPUT LABELS:
0 Output
1 Program
2 Preview
*/
int myID=MY_INPUT;
int preview=0;
int pinger=0;
WiFiClient client;
#ifdef ESP32
WebServer server(80);
#define LED_BUILTIN (2)
#else
ESP8266WebServer server(80);
// For ESP-01 LED
#define INVERTED_LED 1
#endif
char buf[100];
int i=0;
int state=0;
// XXX: Count these from the connection
int outputs=3;
int output[16];
String atemIP=ATEM_IP;
int connectATEM(String atemip)
{
Serial.println("Connecting to ATEM");
if (client.connect(atemip.c_str(), 9990)) {
Serial.println("connected");
return 0;
} else {
Serial.println("connection failed");
delay(2000);
}
return -1;
}
int wifiSetup()
{
int c=0;
WiFi.mode(WIFI_STA);
WiFi.begin(WIFI_SID, WIFI_PWD);
// WiFi.hostname("esp8266tally");
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print(".");
Serial.printf(" %d ", WiFi.status());
c++;
if (c>30)
return -1;
}
Serial.println(WiFi.localIP().toString());
WiFi.setAutoReconnect(true);
return 0;
}
void setRouting(int dest, int src)
{
client.print("VIDEO OUTPUT ROUTING:");
client.print("\n");
client.print(dest);
client.print(" ");
client.print(src);
client.print("\n");
client.print("\n");
}
void httpIndex() {
String s = "<html><h1>Tally</h1>";
s+="<div>Input: <b>"+String(myID)+"</b></div>";
s+="<form action=\"/setid\" method=\"post\">";
s+="<div>ID: <input type=\"text\" name=\"i\" value=\""+String(myID)+"\"></div>";
s+="<div><input type=\"submit\" value=\"Change\"></div>";
s+="</form>";
if (!client.connected()) {
s+="<div>Not connected!</div>";
} else {
s+="<div>Connected to: "+atemIP+"</div>";
}
s+="<table><tr><th>Output</th><th>Input</th></tr>";
for(int i=0;i<outputs;i++) {
s+="<tr>";
s+="<td>"+String(i)+"</td>";
s+="<td>"+String(output[i])+"</td>";
s+="</tr>";
}
s+"</table><div>";
s+="<form action=\"/route\" method=\"post\">";
s+="<div>DST: <input type=\"text\" name=\"d\" value=\"1\"></div>";
s+="<div>SRC: <input type=\"text\" name=\"s\" value=\""+String(output[2])+"\"></div>";
s+="<div><input type=\"submit\" value=\"Set\"></div>";
s+="</form>";
server.send(200, "text/html", s);
}
void httpGetSetInput() {
String input=server.arg("i");
if (input.length()>0) {
myID=input.toInt();
}
server.send(200, "text/plain", "My input is: " + String(myID));
}
void httpSetMyInput() {
int i;
String ti=server.arg("i");
if (ti.length()==0) {
server.send(500, "text/plain", "Invalid request");
return;
}
i=ti.toInt();
// xxx
if (i<0 || i>16) {
server.send(404, "text/plain", "Invalid input");
return;
}
myID=i;
server.send(200, "text/plain", "My input is now "+String(myID));
}
void httpSetRoute() {
int dst,src;
String tsrc=server.arg("s");
String tdst=server.arg("d");
if (tsrc.length()==0 || tdst.length()==0) {
server.send(500, "text/plain", "Invalid request");
return;
}
src=tsrc.toInt();
dst=tdst.toInt();
// XXX
if (src<0 || src>16 || dst<0 || dst>3) {
server.send(404, "text/plain", "Invalid source or destination");
return;
}
setRouting(dst, src);
server.send(200, "text/plain", "Routed "+String(src)+ " to "+String(dst));
}
void httpSearchATEM() {
searchATEM(false);
}
int searchATEM(bool setip) {
Serial.println("Querying network for ATEM");
int n = MDNS.queryService("blackmagic", "tcp");
if (n == 0) {
Serial.println("Nothing found, using default ATEM IP");
return -1;
}
Serial.println("ATEM found");
Serial.println(n);
for (int i = 0; i < n; ++i) {
// Print details for each service found
Serial.print(" ");
Serial.print(i + 1);
Serial.print(": ");
Serial.print(MDNS.hostname(i));
Serial.print(" (");
Serial.print(MDNS.IP(i));
Serial.print(":");
Serial.print(MDNS.port(i));
Serial.println(")");
}
Serial.print("IP: ");
Serial.println(MDNS.IP(0));
atemIP=String(MDNS.IP(0).toString());
return n;
}
void setup() {
delay(1000);
Serial.begin(115200);
while (wifiSetup()<0) {
Serial.println("WiFi: Failed");
delay(2000);
}
buf[0]=0;
server.on("/", httpIndex);
server.on("/input", httpGetSetInput);
server.on("/route", httpSetRoute);
server.on("/setid", httpSetMyInput);
server.on("/search", httpSearchATEM);
if (MDNS.begin("atemtally")) {
Serial.println("MDNS responder started");
//
MDNS.addService("http", "tcp", 80);
// XXX: Problems with this, disabled for now
// ESP32: IP 0.0.0.0
// ESP8622: Nothing found
// searchATEM(true);
}
server.begin();
Serial.println("Ready");
delay(2000);
// On a ESP-01 LED is shared with serial GPIO so no output after this on it!
pinMode(LED_BUILTIN, OUTPUT);
}
void check()
{
if (state==0 && strcmp(buf, "VIDEO OUTPUT ROUTING:")==0) {
state=1;
return;
} else if (strlen(buf)==0) {
state=0;
}
switch (state) {
case 0:
break;
case 1:
char *s1=buf;
char *s2=strchr(buf, ' ');
int d=atoi(s1);
int s=atoi(s2);
output[d]=s;
Serial.print(d);
Serial.print("=");
Serial.println(s);
break;
}
}
// Keep alive ping
//
void ping()
{
static unsigned long pm=0;
unsigned long cm = millis();
if (cm-pm >= 2000) {
pm=cm;
client.print("\n");
}
}
void readClient()
{
// VIDEO OUTPUT ROUTING:
if (client.available()) {
char c = client.read();
if (c!='\n' && i<99) {
buf[i]=c;
i++;
} else {
buf[i]=0;
//Serial.println(buf);
check();
i=0;
}
}
}
unsigned long pm=0;
int ppls=HIGH;
// Helper to handle different type on led connections,
// ESP-01 has internal led ON when LOW and not HIGH so deal with it
void setLedState(int level) {
#ifdef INVERTED_LED
digitalWrite(LED_BUILTIN, level==HIGH ? LOW : HIGH);
#else
digitalWrite(LED_BUILTIN, level);
#endif
}
void setTallyLedState()
{
// Blink if preview
// On if program
// Off otherwise
//
if (!client.connected()) {
setLedState(HIGH);
delay(300);
setLedState(LOW);
delay(100);
return;
}
if (output[2]==myID && output[1]!=myID) {
unsigned long cm = millis();
if (cm-pm >= 100) {
pm=cm;
ppls=(ppls==LOW) ? HIGH : LOW;
}
setLedState(ppls);
} else if (output[1]==myID || output[0]==myID) {
setLedState(HIGH);
} else {
setLedState(LOW);
}
}
void loop() {
if (WiFi.status() != WL_CONNECTED) {
Serial.printf(" %d ", WiFi.status());
Serial.println("Lost WiFi, waiting for auto reconnecting...");
delay(500);
return;
}
if (!client.connected()) {
Serial.println("Lost ATEM, reconnecting...");
connectATEM(atemIP);
}
if (client.connected()) {
readClient();
}
setTallyLedState();
server.handleClient();
#ifndef ESP32
MDNS.update();
#endif
ping();
}