diff --git a/Cargo.lock b/Cargo.lock
index c5c8a82..6d0ae7e 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1102,6 +1102,7 @@ dependencies = [
  "embassy-net",
  "embassy-net-driver",
  "embassy-time",
+ "embedded-hal-async",
  "embedded-io-async",
  "esp-backtrace",
  "esp-hal",
diff --git a/Cargo.toml b/Cargo.toml
index dd22f0e..ce8a768 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -22,6 +22,7 @@ embassy-net = { version = "0.4.0", features = ["dhcpv4", "proto-ipv4", "tcp"] }
 embedded-io-async = "0.6.1"
 embassy-net-driver = "0.2.0"
 const_format = "0.2.32"
+embedded-hal-async = "1.0.0"
 
 [profile.dev]
 # Rust debug is too slow.
diff --git a/src/main.rs b/src/main.rs
index 1a67aea..e983953 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -5,12 +5,14 @@
 use embassy_executor::Spawner;
 use embassy_net::tcp::TcpSocket;
 use embassy_net::{Config, Ipv4Address, Stack, StackResources};
-use esp_hal;
+use esp_hal::{self, IO};
 
 use const_format::formatcp;
 use embassy_time::{Duration, Timer};
+use embedded_hal_async::digital::Wait;
 use esp_backtrace as _;
 use esp_hal::clock::ClockControl;
+use esp_hal::gpio::{AnyPin, Input, PullUp};
 use esp_hal::Rng;
 use esp_hal::{embassy, peripherals::Peripherals, prelude::*, timer::TimerGroup};
 use esp_println::println;
@@ -23,7 +25,7 @@ const SSID: &str = env!("SSID");
 const PASSWORD: &str = env!("PASSWORD");
 
 #[main]
-async fn main(spawner: Spawner) -> ! {
+async fn main(spawner: Spawner) {
     #[cfg(feature = "log")]
     esp_println::logger::init_logger(log::LevelFilter::Info);
 
@@ -67,9 +69,6 @@ async fn main(spawner: Spawner) -> ! {
     spawner.spawn(connection(controller)).ok();
     spawner.spawn(net_task(&stack)).ok();
 
-    let mut rx_buffer = [0; 4096];
-    let mut tx_buffer = [0; 4096];
-
     loop {
         if stack.is_link_up() {
             break;
@@ -86,53 +85,79 @@ async fn main(spawner: Spawner) -> ! {
         Timer::after(Duration::from_millis(500)).await;
     }
 
-    loop {
-        Timer::after(Duration::from_millis(1_000)).await;
+    let io = IO::new(peripherals.GPIO, peripherals.IO_MUX);
+    let button = io.pins.gpio12.into_pull_up_input();
+    println!("Spawning button task");
+    spawner.must_spawn(button_task(button.into(), stack));
+}
 
-        let mut socket = TcpSocket::new(&stack, &mut rx_buffer, &mut tx_buffer);
+async fn ring(stack: &'static Stack<WifiDevice<'static, WifiStaDevice>>) -> Result<(), &str> {
+    let mut rx_buffer = [0; 4096];
+    let mut tx_buffer = [0; 4096];
 
-        socket.set_timeout(Some(embassy_time::Duration::from_secs(10)));
+    Timer::after(Duration::from_millis(1_000)).await;
 
-        let remote_endpoint = (Ipv4Address::new(104, 20, 43, 236), 80);
-        println!("connecting...");
-        let r = socket.connect(remote_endpoint).await;
-        if let Err(e) = r {
-            println!("connect error: {:?}", e);
-            continue;
-        }
+    let mut socket = TcpSocket::new(&stack, &mut rx_buffer, &mut tx_buffer);
 
-        const json: &'static str = "{
+    socket.set_timeout(Some(embassy_time::Duration::from_secs(10)));
+
+    let remote_endpoint = (Ipv4Address::new(104, 20, 43, 236), 80);
+    println!("connecting...");
+    let r = socket.connect(remote_endpoint).await;
+    if let Err(e) = r {
+        println!("connect error: {:?}", e);
+        return Err("connect error");
+    }
+
+    const JSON: &'static str = "{
             \"token\": \"ahgvt9acdx5sowxfobadt9cmpqhrzp\",
             \"user\": \"ud2btptjwvy92xi8y77tfurfew6z7a\",
             \"message\": \"DOOR BELL!!!\"
         }";
-        const json_len: usize = json.len();
+    const JSON_LEN: usize = JSON.len();
 
-        println!("connected!");
-        let mut buf = [0; 1024];
-        loop {
-            use embedded_io_async::Write;
-            let req = formatcp!("POST /1/messages.json HTTP/1.0\r\nHost: api.pushover.net\r\nContent-Type: application/json\r\nContent-Length: {}\r\n\r\n{}\r\n\r\n", json_len, json);
-            println!("{}", req);
-            let r = socket.write_all(req.as_bytes()).await;
-            if let Err(e) = r {
-                println!("write error: {:?}", e);
+    println!("connected!");
+    let mut buf = [0; 1024];
+    loop {
+        use embedded_io_async::Write;
+        let req = formatcp!("POST /1/messages.json HTTP/1.0\r\nHost: api.pushover.net\r\nContent-Type: application/json\r\nContent-Length: {}\r\n\r\n{}\r\n\r\n", JSON_LEN, JSON);
+        println!("{}", req);
+        let r = socket.write_all(req.as_bytes()).await;
+        if let Err(e) = r {
+            println!("write error: {:?}", e);
+            break;
+        }
+        let n = match socket.read(&mut buf).await {
+            Ok(0) => {
+                println!("read EOF");
                 break;
             }
-            let n = match socket.read(&mut buf).await {
-                Ok(0) => {
-                    println!("read EOF");
-                    break;
-                }
-                Ok(n) => n,
-                Err(e) => {
-                    println!("read error: {:?}", e);
-                    break;
-                }
-            };
-            println!("{}", core::str::from_utf8(&buf[..n]).unwrap());
+            Ok(n) => n,
+            Err(e) => {
+                println!("read error: {:?}", e);
+                break;
+            }
+        };
+        println!("{}", core::str::from_utf8(&buf[..n]).unwrap());
+    }
+    Timer::after(Duration::from_millis(5000)).await;
+    Ok(())
+}
+
+#[embassy_executor::task]
+async fn button_task(
+    mut button: AnyPin<Input<PullUp>>,
+    stack: &'static Stack<WifiDevice<'static, WifiStaDevice>>,
+) {
+    loop {
+        button.wait_for_falling_edge().await.unwrap();
+        Timer::after_millis(10).await;
+        if button.is_low().unwrap() {
+            println!("Button pressed");
+            ring(stack)
+                .await
+                .unwrap_or_else(|e| println!("ring error: {}", e));
         }
-        Timer::after(Duration::from_millis(5000)).await;
     }
 }