diff --git a/src/main.rs b/src/main.rs
index 4803a8e..80fd90b 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -20,7 +20,7 @@ async fn main(_spawner: Spawner) {
     let config = twim::Config::default();
     let mut i2c = Twim::new(p.TWISPI0, Irqs, p.P0_03, p.P0_04, config);
 
-    for addr in 1..=u8::MAX {
+    for addr in 1..=127 {
         if i2c.read(addr, &mut [0]).await.is_ok() {
             info!("i2c device at 0x{:02X}", addr)
         }