Added relay functionality

index.js

@@ -138,8 +138,7 @@ app.post("/select", (req, res) => {
 });
 
 app.post("/playoverlay", (req, res) => {
-	let video = fs.readFileSync('/overlayvideo');
+	require('child_process').spawn('/home/pi/video-player/play-overlay.sh');
-	require('child_process').spawn('ffplay', ['-fs', '-autoexit', '-hide_banner', '-loglevel', 'error', video]);
 	res.json({ status: 'ok' });
 });
 
@@ -179,11 +178,5 @@ app.post('/upload', function (req, res) {
 		}
 	});
 
-	try {
-		require('child_process').spawn('sudo', ['systemctl', 'restart', 'video-player2.service']);
-	} catch (error) {
-		console.error(error);
-	}
-
 	res.redirect('/');
 });

play-overlay.sh

@@ -1,5 +1,9 @@
 #!/bin/bash
 
+/home/pi/video-player/relay-on.sh &
+
 export DISPLAY=:0
 
 ffplay -fs -autoexit $(cat /overlayvideo)
+
+/home/pi/video-player/relay-off.sh &

public/index.html

@@ -39,6 +39,22 @@
     <div id="projectorstatus2"></div>
     <button onclick="fetch(`/startprojector`, { method: 'POST' });">Start projectors</button>
     <button onclick="fetch(`/stopprojector`, { method: 'POST' });">Stop projectors</button>
+    <h2>Relay 1</h2>
+    <div id="relay1"></div>
+    <button onclick="fetch(`10.242.84.111:8080/on/19`);">On relay 1</button>
+    <button onclick="fetch(`10.242.84.111:8080/off/19`);">Off relay 1</button>
+    <h2>Relay 2</h2>
+    <div id="relay2"></div>
+    <button onclick="fetch(`10.242.84.111:8080/on/13`);">On relay 2</button>
+    <button onclick="fetch(`10.242.84.111:8080/off/13`);">Off relay 2</button>
+    <h2>Relay 3</h2>
+    <div id="relay3"></div>
+    <button onclick="fetch(`10.242.84.111:8080/on/6`);">On relay 3</button>
+    <button onclick="fetch(`10.242.84.111:8080/off/6`);">Off relay 3</button>
+    <h2>Relay 4</h2>
+    <div id="relay4"></div>
+    <button onclick="fetch(`10.242.84.111:8080/on/5`);">On relay 4</button>
+    <button onclick="fetch(`10.242.84.111:8080/off/5`);">Off relay 4</button>
 	<script src="/main.js"></script>
 </body>
 </html>

public/main.js

@@ -34,6 +34,16 @@ async function main() {
 
 	status1.textContent = status.status1;
 	status2.textContent = status.status2;
+
+	const relay1Div = document.getElementById('relay1');
+	const relay2Div = document.getElementById('relay2');
+	const relay3Div = document.getElementById('relay3');
+	const relay4Div = document.getElementById('relay4');
+
+	relay1Div.innerText = await (await fetch("10.242.84.111:8080/status/19")).text();
+	relay2Div.innerText = await (await fetch("10.242.84.111:8080/status/13")).text();
+	relay3Div.innerText = await (await fetch("10.242.84.111:8080/status/6")).text();
+	relay4Div.innerText = await (await fetch("10.242.84.111:8080/status/5")).text();
 }
 
 main();

relay-off.sh

@@ -0,0 +1,8 @@
+#!/bin/bash
+
+# Relay 1: GPIO 19
+# Relay 2: GPIO 13
+# Relay 3: GPIO 6
+# Relay 4: GPIO 5
+
+curl --retry 5 --retry-all-errors 10.242.84.111:8080/off/19

relay-on.sh

@@ -0,0 +1,8 @@
+#!/bin/bash
+
+# Relay 1: GPIO 19
+# Relay 2: GPIO 13
+# Relay 3: GPIO 6
+# Relay 4: GPIO 5
+
+curl --retry 5 --retry-all-errors 10.242.84.111:8080/on/19