diff --git a/src/test.rs b/src/test.rs
new file mode 100644
index 0000000..a102212
--- /dev/null
+++ b/src/test.rs
@@ -0,0 +1,16 @@
+use std::net::UdpSocket;
+
+//call from main fn
+pub fn sendtestudp(to: String, port: u16, payload: String) {
+    let socket = UdpSocket::bind("0.0.0.0:0").expect("couldn't bind to address");
+    let to = format!("{}:{}", to, port);
+
+    //form hex string to real hex -> FF == 0xFF
+    let bytes: Vec<u8> = (0..payload.len())
+        .step_by(2)
+        .map(|i| u8::from_str_radix(&payload[i..i+2], 16).expect("not a real hex"))
+        .collect();
+
+    socket.send_to(&bytes, to);
+
+}
\ No newline at end of file