diff --git a/Cargo.toml b/Cargo.toml
index ee22ce7b..f4be9993 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -39,14 +39,13 @@ sdio-host = { version = "0.6.0", optional = true }
 embedded-dma = "0.2.0"
 bare-metal = { version = "1" }
 void = { default-features = false, version = "1.0.2" }
-embedded-hal = { features = ["unproven"], version = "0.2.7" }
+embedded-hal = { git = "https://github.com/burrbull/embedded-hal", branch = "outport", features = ["unproven"] }
 display-interface = { version = "0.4.1", optional = true }
 fugit = "0.3.5"
 fugit-timer = "0.1.3"
 rtic-monotonic = { version = "1.0", optional = true }
 bitflags = "1.3.2"
 embedded-storage = "0.2"
-hd44780-driver = "0.4.0"
 
 [dependencies.time]
 version = "0.3"
@@ -80,6 +79,7 @@ display-interface-spi = "0.4"
 ist7920 = "0.1.0"
 smart-leds = "0.3.0"
 ws2812-spi = { version = "0.4.0", features = [] }
+hd44780-driver = { git = "https://github.com/burrbull/hd44780-driver", branch = "outport" }
 
 [dev-dependencies.time]
 version = "0.3"
diff --git a/examples/hd44780.rs b/examples/hd44780.rs
index 73c3ac2a..79799c75 100644
--- a/examples/hd44780.rs
+++ b/examples/hd44780.rs
@@ -35,7 +35,7 @@ fn main() -> ! {
     let d6 = gpiob.pb4.into_push_pull_output();
     let d7 = gpiob.pb3.into_push_pull_output();
 
-    let mut lcd = HD44780::new_4bit(rs, en, d4, d5, d6, d7, &mut delay).unwrap();
+    let mut lcd = HD44780::new_4bit_port(rs, en, (d4, d5, d6, d7).outport(), &mut delay).unwrap();
     lcd.reset(&mut delay).unwrap();
     lcd.clear(&mut delay).unwrap();
     lcd.set_display_mode(
diff --git a/src/gpio/outport.rs b/src/gpio/outport.rs
index 6130e42f..338fddf7 100644
--- a/src/gpio/outport.rs
+++ b/src/gpio/outport.rs
@@ -1,4 +1,5 @@
 use super::*;
+use embedded_hal::digital::v2::OutputPort;
 
 pub trait OutPort {
     type Target;
@@ -6,7 +7,7 @@ pub trait OutPort {
 }
 
 macro_rules! out_port {
-    ( $name:ident => ( $($i:literal),+ ), ( $($N:ident),+ ), ( $($d:ident),* )) => {
+    ( $name:ident => $n:literal, ( $($i:literal),+ ), ( $($N:ident),+ ), ( $($d:ident),* )) => {
         pub struct $name<const P: char $(, const $N: u8)+> {
             $(pub $d: Pin<P, $N, Output<PushPull>>,)+
         }
@@ -40,13 +41,21 @@ macro_rules! out_port {
                 }
             }
         }
+
+        impl<const P: char $(, const $N: u8)+> OutputPort<$n, u8> for $name<P $(, $N)+> {
+            type Error = core::convert::Infallible;
+            fn write(&mut self, data: u8) -> Result<(), Self::Error> {
+                self.write_u8(data);
+                Ok(())
+            }
+        }
     }
 }
 
-out_port!(OutPort2 => (0, 1), (N0, N1), (d0, d1));
-out_port!(OutPort3 => (0, 1, 2), (N0, N1, N2), (d0, d1, d2));
-out_port!(OutPort4 => (0, 1, 2, 3), (N0, N1, N2, N3), (d0, d1, d2, d3));
-out_port!(OutPort5 => (0, 1, 2, 3, 4), (N0, N1, N2, N3, N4), (d0, d1, d2, d3, d4));
-out_port!(OutPort6 => (0, 1, 2, 3, 4, 5), (N0, N1, N2, N3, N4, N5), (d0, d1, d2, d3, d4, d5));
-out_port!(OutPort7 => (0, 1, 2, 3, 4, 5, 6), (N0, N1, N2, N3, N4, N5, N6), (d0, d1, d2, d3, d4, d5, d6));
-out_port!(OutPort8 => (0, 1, 2, 3, 4, 5, 6, 7), (N0, N1, N2, N3, N4, N5, N6, N7), (d0, d1, d2, d3, d4, d5, d6, d7));
+out_port!(OutPort2 => 2, (0, 1), (N0, N1), (d0, d1));
+out_port!(OutPort3 => 3, (0, 1, 2), (N0, N1, N2), (d0, d1, d2));
+out_port!(OutPort4 => 4, (0, 1, 2, 3), (N0, N1, N2, N3), (d0, d1, d2, d3));
+out_port!(OutPort5 => 5, (0, 1, 2, 3, 4), (N0, N1, N2, N3, N4), (d0, d1, d2, d3, d4));
+out_port!(OutPort6 => 6, (0, 1, 2, 3, 4, 5), (N0, N1, N2, N3, N4, N5), (d0, d1, d2, d3, d4, d5));
+out_port!(OutPort7 => 7, (0, 1, 2, 3, 4, 5, 6), (N0, N1, N2, N3, N4, N5, N6), (d0, d1, d2, d3, d4, d5, d6));
+out_port!(OutPort8 => 8, (0, 1, 2, 3, 4, 5, 6, 7), (N0, N1, N2, N3, N4, N5, N6, N7), (d0, d1, d2, d3, d4, d5, d6, d7));