diff --git a/Cargo.toml b/Cargo.toml
index 464d11b..bb740e8 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -14,7 +14,11 @@ categories = ["embedded", "no-std"]
 license = "MIT/Apache-2.0"
 
 [dependencies]
-embedded-hal = "0.2.3"
+nb = "0.1.2"
+
+[dependencies.embedded-hal]
+version = "0.2.3"
+features=["unproven"]
 
 [dev-dependencies]
 embedded-hal-mock = "0.7.0"
diff --git a/src/proxy.rs b/src/proxy.rs
index 844249a..5a93713 100644
--- a/src/proxy.rs
+++ b/src/proxy.rs
@@ -1,3 +1,4 @@
+use hal::adc::{Channel, OneShot};
 use hal::blocking::i2c;
 use hal::blocking::spi;
 
@@ -151,3 +152,19 @@ where
         })
     }
 }
+
+impl<'a, M, ADC, WORD, PIN, AS: OneShot<ADC, WORD, PIN>> OneShot<ADC, WORD, PIN>
+    for BusProxy<'a, M, AS>
+where
+    PIN: Channel<ADC>,
+    M: 'a + mutex::BusMutex<cell::RefCell<AS>>,
+{
+    type Error = AS::Error;
+
+    fn read(&mut self, pin: &mut PIN) -> nb::Result<WORD, Self::Error> {
+        self.0.lock(|lock| {
+            let mut i = lock.borrow_mut();
+            i.read(pin)
+        })
+    }
+}