stub base station

cellular/src/main.rs

@@ -1,3 +1,24 @@
-fn main() {
-    println!("Hello, world!");
+use ferris_says::say;
+use std::io::{stdout, BufWriter};
+
+mod sdr;
+
+fn main() -> Result<(), Box<dyn std::error::Error>> {
+    let stdout = stdout();
+    let message = String::from("Welcome to the Cellular Revolution!");
+    let width = message.chars().count();
+
+    let mut writer = BufWriter::new(stdout.lock());
+    say(&message, width, &mut writer).unwrap();
+
+    // test SDR stuff
+    let device_args = sdr::find_device()?;
+    println!("Using device: {}", device_args);
+
+    let transmitter = sdr::SdrTransmitter::new(device_args, 0)?;
+
+    transmitter.transmit_tone(800e6, 1e6, 10e3)?;
+
+    Ok(())
+
 }