diff --git a/CHANGELOG.md b/CHANGELOG.md
index e9745f5..ef0a925 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,6 +11,8 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 
 ### Changed
 
+- Updated to embedded hal 1.0 a6
+
 ### Fixed
 
 ## [v0.5.0] - 2021-11-28
diff --git a/Cargo.toml b/Cargo.toml
index f1dbb0d..f1b489c 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -16,7 +16,7 @@ edition = "2018"
 # travis-ci = { repository = "caemor/epd-waveshare" }
 
 [dependencies]
-embedded-hal = "1.0.0-alpha.2"
+embedded-hal = "1.0.0-alpha.6"
 embedded-graphics-core = { version = "0.3.2", optional = true}
 bit_field = "0.10.1"
 
diff --git a/examples/epd1in54_no_graphics.rs b/examples/epd1in54_no_graphics.rs
index 4eecbcd..063ef61 100644
--- a/examples/epd1in54_no_graphics.rs
+++ b/examples/epd1in54_no_graphics.rs
@@ -1,6 +1,5 @@
 #![deny(warnings)]
 
-use embedded_hal::prelude::*;
 use epd_waveshare::{epd1in54::Epd1in54, prelude::*};
 use linux_embedded_hal::{
     spidev::{self, SpidevOptions},
diff --git a/src/epd1in54/mod.rs b/src/epd1in54/mod.rs
index 3bedf52..3b3f624 100644
--- a/src/epd1in54/mod.rs
+++ b/src/epd1in54/mod.rs
@@ -53,14 +53,10 @@ pub const DEFAULT_BACKGROUND_COLOR: Color = Color::White;
 //const DPI: u16 = 184;
 const IS_BUSY_LOW: bool = false;
 
-use embedded_hal::{
-    blocking::{delay::*, spi::Write},
-    digital::*,
-};
-
+use crate::eh_prelude::*;
 use crate::type_a::{
     command::Command,
-    constants::{LUT_FULL_UPDATE, LUT_PARTIAL_UPDATE},
+    constants::{LUT_FULL_UPDATE, LUT_PARTIAL_UPDATE}
 };
 
 use crate::color::Color;
@@ -91,7 +87,7 @@ where
     BUSY: InputPin,
     DC: OutputPin,
     RST: OutputPin,
-    DELAY: DelayMs<u8>,
+    DELAY: DelayUs,
 {
     fn init(&mut self, spi: &mut SPI, delay: &mut DELAY) -> Result<(), SPI::Error> {
         self.interface.reset(delay, 10);
@@ -147,7 +143,7 @@ where
     BUSY: InputPin,
     DC: OutputPin,
     RST: OutputPin,
-    DELAY: DelayMs<u8>,
+    DELAY: DelayUs,
 {
     type DisplayColor = Color;
     fn width(&self) -> u32 {
@@ -296,7 +292,7 @@ where
     BUSY: InputPin,
     DC: OutputPin,
     RST: OutputPin,
-    DELAY: DelayMs<u8>,
+    DELAY: DelayUs,
 {
     fn wait_until_idle(&mut self) {
         let _ = self.interface.wait_until_idle(IS_BUSY_LOW);
diff --git a/src/epd1in54b/mod.rs b/src/epd1in54b/mod.rs
index 714ee0b..43432a8 100644
--- a/src/epd1in54b/mod.rs
+++ b/src/epd1in54b/mod.rs
@@ -1,10 +1,6 @@
 //! A simple Driver for the Waveshare 1.54" (B) E-Ink Display via SPI
 
-use embedded_hal::{
-    blocking::{delay::*, spi::Write},
-    digital::*,
-};
-
+use crate::eh_prelude::*;
 use crate::interface::DisplayInterface;
 use crate::traits::{
     InternalWiAdditions, RefreshLut, WaveshareDisplay, WaveshareThreeColorDisplay,
@@ -46,7 +42,7 @@ where
     BUSY: InputPin,
     DC: OutputPin,
     RST: OutputPin,
-    DELAY: DelayMs<u8>,
+    DELAY: DelayUs,
 {
     fn init(&mut self, spi: &mut SPI, delay: &mut DELAY) -> Result<(), SPI::Error> {
         self.interface.reset(delay, 10);
@@ -61,7 +57,7 @@ where
 
         // power on
         self.command(spi, Command::PowerOn)?;
-        delay.try_delay_ms(5);
+        delay.delay_ms(5);
         self.wait_until_idle();
 
         // set the panel settings
@@ -93,7 +89,7 @@ where
     BUSY: InputPin,
     DC: OutputPin,
     RST: OutputPin,
-    DELAY: DelayMs<u8>,
+    DELAY: DelayUs,
 {
     fn update_color_frame(
         &mut self,
@@ -137,7 +133,7 @@ where
     BUSY: InputPin,
     DC: OutputPin,
     RST: OutputPin,
-    DELAY: DelayMs<u8>,
+    DELAY: DelayUs,
 {
     type DisplayColor = Color;
     fn new(
@@ -313,7 +309,7 @@ where
     BUSY: InputPin,
     DC: OutputPin,
     RST: OutputPin,
-    DELAY: DelayMs<u8>,
+    DELAY: DelayUs,
 {
     fn command(&mut self, spi: &mut SPI, command: Command) -> Result<(), SPI::Error> {
         self.interface.cmd(spi, command)
diff --git a/src/epd1in54c/mod.rs b/src/epd1in54c/mod.rs
index 802b131..10ddd5c 100644
--- a/src/epd1in54c/mod.rs
+++ b/src/epd1in54c/mod.rs
@@ -1,10 +1,6 @@
 //! A simple Driver for the Waveshare 1.54" (C) E-Ink Display via SPI
 
-use embedded_hal::{
-    blocking::{delay::*, spi::Write},
-    digital::v2::*,
-};
-
+use crate::eh_prelude::*;
 use crate::interface::DisplayInterface;
 use crate::traits::{
     InternalWiAdditions, RefreshLut, WaveshareDisplay, WaveshareThreeColorDisplay,
@@ -44,7 +40,7 @@ where
     BUSY: InputPin,
     DC: OutputPin,
     RST: OutputPin,
-    DELAY: DelayMs<u8>,
+    DELAY: DelayUs,
 {
     fn init(&mut self, spi: &mut SPI, delay: &mut DELAY) -> Result<(), SPI::Error> {
         // Based on Reference Program Code from:
@@ -81,7 +77,7 @@ where
     BUSY: InputPin,
     DC: OutputPin,
     RST: OutputPin,
-    DELAY: DelayMs<u8>,
+    DELAY: DelayUs,
 {
     fn update_color_frame(
         &mut self,
@@ -120,7 +116,7 @@ where
     BUSY: InputPin,
     DC: OutputPin,
     RST: OutputPin,
-    DELAY: DelayMs<u8>,
+    DELAY: DelayUs,
 {
     type DisplayColor = Color;
     fn new(
@@ -255,7 +251,7 @@ where
     BUSY: InputPin,
     DC: OutputPin,
     RST: OutputPin,
-    DELAY: DelayMs<u8>,
+    DELAY: DelayUs,
 {
     fn command(&mut self, spi: &mut SPI, command: Command) -> Result<(), SPI::Error> {
         self.interface.cmd(spi, command)
diff --git a/src/epd2in13_v2/mod.rs b/src/epd2in13_v2/mod.rs
index 6f42272..8c88ee8 100644
--- a/src/epd2in13_v2/mod.rs
+++ b/src/epd2in13_v2/mod.rs
@@ -8,11 +8,7 @@
 //! - [Controller Datasheet SS1780](http://www.e-paper-display.com/download_detail/downloadsId=682.html)
 //!
 
-use embedded_hal::{
-    blocking::{delay::*, spi::Write},
-    digital::{InputPin, OutputPin},
-};
-
+use crate::eh_prelude::*;
 use crate::buffer_len;
 use crate::color::Color;
 use crate::interface::DisplayInterface;
@@ -64,7 +60,7 @@ where
     BUSY: InputPin,
     DC: OutputPin,
     RST: OutputPin,
-    DELAY: DelayMs<u8>,
+    DELAY: DelayUs,
 {
     fn init(&mut self, spi: &mut SPI, delay: &mut DELAY) -> Result<(), SPI::Error> {
         // HW reset
@@ -158,7 +154,7 @@ where
     BUSY: InputPin,
     DC: OutputPin,
     RST: OutputPin,
-    DELAY: DelayMs<u8>,
+    DELAY: DelayUs,
 {
     type DisplayColor = Color;
     fn new(
@@ -368,7 +364,7 @@ where
     BUSY: InputPin,
     DC: OutputPin,
     RST: OutputPin,
-    DELAY: DelayMs<u8>,
+    DELAY: DelayUs,
 {
     /// When using partial refresh, the controller uses the provided buffer for
     /// comparison with new buffer.
diff --git a/src/epd2in13bc/mod.rs b/src/epd2in13bc/mod.rs
index 6c20117..a9cc110 100644
--- a/src/epd2in13bc/mod.rs
+++ b/src/epd2in13bc/mod.rs
@@ -49,11 +49,8 @@
 //!# Ok(())
 //!# }
 //!```
-use embedded_hal::{
-    blocking::{delay::*, spi::Write},
-    digital::v2::*,
-};
 
+use crate::eh_prelude::*;
 use crate::interface::DisplayInterface;
 use crate::traits::{
     InternalWiAdditions, RefreshLut, WaveshareDisplay, WaveshareThreeColorDisplay,
@@ -100,7 +97,7 @@ where
     BUSY: InputPin,
     DC: OutputPin,
     RST: OutputPin,
-    DELAY: DelayMs<u8>,
+    DELAY: DelayUs,
 {
     fn init(&mut self, spi: &mut SPI, delay: &mut DELAY) -> Result<(), SPI::Error> {
         // Values taken from datasheet and sample code
@@ -144,7 +141,7 @@ where
     BUSY: InputPin,
     DC: OutputPin,
     RST: OutputPin,
-    DELAY: DelayMs<u8>,
+    DELAY: DelayUs,
 {
     fn update_color_frame(
         &mut self,
@@ -189,7 +186,7 @@ where
     BUSY: InputPin,
     DC: OutputPin,
     RST: OutputPin,
-    DELAY: DelayMs<u8>,
+    DELAY: DelayUs,
 {
     type DisplayColor = TriColor;
     fn new(
@@ -336,7 +333,7 @@ where
     BUSY: InputPin,
     DC: OutputPin,
     RST: OutputPin,
-    DELAY: DelayMs<u8>,
+    DELAY: DelayUs,
 {
     fn command(&mut self, spi: &mut SPI, command: Command) -> Result<(), SPI::Error> {
         self.interface.cmd(spi, command)
diff --git a/src/epd2in7b/mod.rs b/src/epd2in7b/mod.rs
index 972d785..863509a 100644
--- a/src/epd2in7b/mod.rs
+++ b/src/epd2in7b/mod.rs
@@ -2,11 +2,7 @@
 //!
 //! [Documentation](https://www.waveshare.com/wiki/2.7inch_e-Paper_HAT_(B))
 
-use embedded_hal::{
-    blocking::{delay::*, spi::Write},
-    digital::v2::*,
-};
-
+use crate::eh_prelude::*;
 use crate::interface::DisplayInterface;
 use crate::traits::{
     InternalWiAdditions, RefreshLut, WaveshareDisplay, WaveshareThreeColorDisplay,
@@ -50,7 +46,7 @@ where
     BUSY: InputPin,
     DC: OutputPin,
     RST: OutputPin,
-    DELAY: DelayMs<u8>,
+    DELAY: DelayUs,
 {
     fn init(&mut self, spi: &mut SPI, delay: &mut DELAY) -> Result<(), SPI::Error> {
         // reset the device
@@ -116,7 +112,7 @@ where
     BUSY: InputPin,
     DC: OutputPin,
     RST: OutputPin,
-    DELAY: DelayMs<u8>,
+    DELAY: DelayUs,
 {
     type DisplayColor = Color;
     fn new(
@@ -275,7 +271,7 @@ where
     BUSY: InputPin,
     DC: OutputPin,
     RST: OutputPin,
-    DELAY: DelayMs<u8>,
+    DELAY: DelayUs,
 {
     fn update_color_frame(
         &mut self,
@@ -328,7 +324,7 @@ where
     BUSY: InputPin,
     DC: OutputPin,
     RST: OutputPin,
-    DELAY: DelayMs<u8>,
+    DELAY: DelayUs,
 {
     fn command(&mut self, spi: &mut SPI, command: Command) -> Result<(), SPI::Error> {
         self.interface.cmd(spi, command)
diff --git a/src/epd2in9/mod.rs b/src/epd2in9/mod.rs
index b701e66..fb1e1c9 100644
--- a/src/epd2in9/mod.rs
+++ b/src/epd2in9/mod.rs
@@ -49,11 +49,7 @@ pub const HEIGHT: u32 = 296;
 pub const DEFAULT_BACKGROUND_COLOR: Color = Color::White;
 const IS_BUSY_LOW: bool = false;
 
-use embedded_hal::{
-    blocking::{delay::*, spi::Write},
-    digital::*,
-};
-
+use crate::eh_prelude::*;
 use crate::type_a::{
     command::Command,
     constants::{LUT_FULL_UPDATE, LUT_PARTIAL_UPDATE},
@@ -88,7 +84,7 @@ where
     BUSY: InputPin,
     DC: OutputPin,
     RST: OutputPin,
-    DELAY: DelayMs<u8>,
+    DELAY: DelayUs,
 {
     fn init(&mut self, spi: &mut SPI, delay: &mut DELAY) -> Result<(), SPI::Error> {
         self.interface.reset(delay, 10);
@@ -140,7 +136,7 @@ where
     BUSY: InputPin,
     DC: OutputPin,
     RST: OutputPin,
-    DELAY: DelayMs<u8>,
+    DELAY: DelayUs,
 {
     type DisplayColor = Color;
     fn width(&self) -> u32 {
@@ -292,7 +288,7 @@ where
     BUSY: InputPin,
     DC: OutputPin,
     RST: OutputPin,
-    DELAY: DelayMs<u8>,
+    DELAY: DelayUs,
 {
     fn wait_until_idle(&mut self) {
         let _ = self.interface.wait_until_idle(IS_BUSY_LOW);
diff --git a/src/epd2in9_v2/mod.rs b/src/epd2in9_v2/mod.rs
index 5158627..6cd1a94 100644
--- a/src/epd2in9_v2/mod.rs
+++ b/src/epd2in9_v2/mod.rs
@@ -74,11 +74,7 @@ const LUT_PARTIAL_2IN9: [u8; 153] = [
     0x22, 0x0, 0x0, 0x0,
 ];
 
-use embedded_hal::{
-    blocking::{delay::*, spi::Write},
-    digital::v2::*,
-};
-
+use crate::eh_prelude::*;
 use crate::type_a::command::Command;
 
 use crate::color::Color;
@@ -111,7 +107,7 @@ where
     BUSY: InputPin,
     DC: OutputPin,
     RST: OutputPin,
-    DELAY: DelayMs<u8>,
+    DELAY: DelayUs,
 {
     fn init(&mut self, spi: &mut SPI, delay: &mut DELAY) -> Result<(), SPI::Error> {
         self.interface.reset(delay, 2);
@@ -153,7 +149,7 @@ where
     BUSY: InputPin,
     DC: OutputPin,
     RST: OutputPin,
-    DELAY: DelayMs<u8>,
+    DELAY: DelayUs,
 {
     type DisplayColor = Color;
     fn width(&self) -> u32 {
@@ -289,7 +285,7 @@ where
     BUSY: InputPin,
     DC: OutputPin,
     RST: OutputPin,
-    DELAY: DelayMs<u8>,
+    DELAY: DelayUs,
 {
     fn wait_until_idle(&mut self) {
         self.interface.wait_until_idle(IS_BUSY_LOW);
@@ -369,7 +365,7 @@ where
     BUSY: InputPin,
     DC: OutputPin,
     RST: OutputPin,
-    DELAY: DelayMs<u8>,
+    DELAY: DelayUs,
 {
     /// To be followed immediately by `update_new_frame`.
     fn update_old_frame(
diff --git a/src/epd2in9bc/mod.rs b/src/epd2in9bc/mod.rs
index 91ffeff..6ac8233 100644
--- a/src/epd2in9bc/mod.rs
+++ b/src/epd2in9bc/mod.rs
@@ -53,11 +53,8 @@
 //!# Ok(())
 //!# }
 //!```
-use embedded_hal::{
-    blocking::{delay::*, spi::Write},
-    digital::*,
-};
-
+//! 
+use crate::eh_prelude::*;
 use crate::interface::DisplayInterface;
 use crate::traits::{
     InternalWiAdditions, RefreshLut, WaveshareDisplay, WaveshareThreeColorDisplay,
@@ -103,7 +100,7 @@ where
     BUSY: InputPin,
     DC: OutputPin,
     RST: OutputPin,
-    DELAY: DelayMs<u8>,
+    DELAY: DelayUs,
 {
     fn init(&mut self, spi: &mut SPI, delay: &mut DELAY) -> Result<(), SPI::Error> {
         // Values taken from datasheet and sample code
@@ -116,7 +113,7 @@ where
 
         // power on
         self.command(spi, Command::PowerOn)?;
-        delay.try_delay_ms(5);
+        delay.delay_ms(5);
         self.wait_until_idle();
 
         // set the panel settings
@@ -147,7 +144,7 @@ where
     BUSY: InputPin,
     DC: OutputPin,
     RST: OutputPin,
-    DELAY: DelayMs<u8>,
+    DELAY: DelayUs,
 {
     fn update_color_frame(
         &mut self,
@@ -192,7 +189,7 @@ where
     BUSY: InputPin,
     DC: OutputPin,
     RST: OutputPin,
-    DELAY: DelayMs<u8>,
+    DELAY: DelayUs,
 {
     type DisplayColor = Color;
     fn new(
@@ -339,7 +336,7 @@ where
     BUSY: InputPin,
     DC: OutputPin,
     RST: OutputPin,
-    DELAY: DelayMs<u8>,
+    DELAY: DelayUs,
 {
     fn command(&mut self, spi: &mut SPI, command: Command) -> Result<(), SPI::Error> {
         self.interface.cmd(spi, command)
diff --git a/src/epd4in2/mod.rs b/src/epd4in2/mod.rs
index 9fc49a5..a7ba34a 100644
--- a/src/epd4in2/mod.rs
+++ b/src/epd4in2/mod.rs
@@ -49,11 +49,7 @@
 //!
 //! BE CAREFUL! The screen can get ghosting/burn-ins through the Partial Fast Update Drawing.
 
-use embedded_hal::{
-    blocking::{delay::*, spi::Write},
-    digital::*,
-};
-
+use crate::eh_prelude::*;
 use crate::interface::DisplayInterface;
 use crate::traits::{InternalWiAdditions, QuickRefresh, RefreshLut, WaveshareDisplay};
 
@@ -98,7 +94,7 @@ where
     BUSY: InputPin,
     DC: OutputPin,
     RST: OutputPin,
-    DELAY: DelayMs<u8>,
+    DELAY: DelayUs,
 {
     fn init(&mut self, spi: &mut SPI, delay: &mut DELAY) -> Result<(), SPI::Error> {
         // reset the device
@@ -117,7 +113,7 @@ where
 
         // power on
         self.command(spi, Command::PowerOn)?;
-        delay.try_delay_ms(5);
+        delay.delay_ms(5);
         self.wait_until_idle();
 
         // set the panel settings
@@ -153,7 +149,7 @@ where
     BUSY: InputPin,
     DC: OutputPin,
     RST: OutputPin,
-    DELAY: DelayMs<u8>,
+    DELAY: DelayUs,
 {
     type DisplayColor = Color;
     fn new(
@@ -349,7 +345,7 @@ where
     BUSY: InputPin,
     DC: OutputPin,
     RST: OutputPin,
-    DELAY: DelayMs<u8>,
+    DELAY: DelayUs,
 {
     fn command(&mut self, spi: &mut SPI, command: Command) -> Result<(), SPI::Error> {
         self.interface.cmd(spi, command)
@@ -447,7 +443,7 @@ where
     BUSY: InputPin,
     DC: OutputPin,
     RST: OutputPin,
-    DELAY: DelayMs<u8>,
+    DELAY: DelayUs,
 {
     /// To be followed immediately after by `update_old_frame`.
     fn update_old_frame(
diff --git a/src/epd5in65f/mod.rs b/src/epd5in65f/mod.rs
index 3199e38..1c325a0 100644
--- a/src/epd5in65f/mod.rs
+++ b/src/epd5in65f/mod.rs
@@ -6,11 +6,7 @@
 //! - [Waveshare C driver](https://github.com/waveshare/e-Paper/blob/master/RaspberryPi%26JetsonNano/c/lib/e-Paper/EPD_5in65f.c)
 //! - [Waveshare Python driver](https://github.com/waveshare/e-Paper/blob/master/RaspberryPi%26JetsonNano/python/lib/waveshare_epd/epd5in65f.py)
 
-use embedded_hal::{
-    blocking::{delay::*, spi::Write},
-    digital::v2::{InputPin, OutputPin},
-};
-
+use crate::eh_prelude::*;
 use crate::color::OctColor;
 use crate::interface::DisplayInterface;
 use crate::traits::{InternalWiAdditions, RefreshLut, WaveshareDisplay};
@@ -48,7 +44,7 @@ where
     BUSY: InputPin,
     DC: OutputPin,
     RST: OutputPin,
-    DELAY: DelayMs<u8>,
+    DELAY: DelayUs,
 {
     fn init(&mut self, spi: &mut SPI, delay: &mut DELAY) -> Result<(), SPI::Error> {
         // Reset the device
@@ -81,7 +77,7 @@ where
     BUSY: InputPin,
     DC: OutputPin,
     RST: OutputPin,
-    DELAY: DelayMs<u8>,
+    DELAY: DelayUs,
 {
     type DisplayColor = OctColor;
     fn new(
@@ -205,7 +201,7 @@ where
     BUSY: InputPin,
     DC: OutputPin,
     RST: OutputPin,
-    DELAY: DelayMs<u8>,
+    DELAY: DelayUs,
 {
     fn command(&mut self, spi: &mut SPI, command: Command) -> Result<(), SPI::Error> {
         self.interface.cmd(spi, command)
diff --git a/src/epd7in5/mod.rs b/src/epd7in5/mod.rs
index 3ee0bfe..aa02272 100644
--- a/src/epd7in5/mod.rs
+++ b/src/epd7in5/mod.rs
@@ -6,11 +6,7 @@
 //! - [Waveshare C driver](https://github.com/waveshare/e-Paper/blob/702def06bcb75983c98b0f9d25d43c552c248eb0/RaspberryPi%26JetsonNano/c/lib/e-Paper/EPD_7in5.c)
 //! - [Waveshare Python driver](https://github.com/waveshare/e-Paper/blob/702def06bcb75983c98b0f9d25d43c552c248eb0/RaspberryPi%26JetsonNano/python/lib/waveshare_epd/epd7in5.py)
 
-use embedded_hal::{
-    blocking::{delay::*, spi::Write},
-    digital::{InputPin, OutputPin},
-};
-
+use crate::eh_prelude::*;
 use crate::color::Color;
 use crate::interface::DisplayInterface;
 use crate::traits::{InternalWiAdditions, RefreshLut, WaveshareDisplay};
@@ -48,7 +44,7 @@ where
     BUSY: InputPin,
     DC: OutputPin,
     RST: OutputPin,
-    DELAY: DelayMs<u8>,
+    DELAY: DelayUs,
 {
     fn init(&mut self, spi: &mut SPI, delay: &mut DELAY) -> Result<(), SPI::Error> {
         // Reset the device
@@ -67,7 +63,7 @@ where
 
         // Power on
         self.command(spi, Command::PowerOn)?;
-        delay.try_delay_ms(5);
+        delay.delay_ms(5);
         self.wait_until_idle();
 
         // Set the clock frequency to 50Hz (default)
@@ -104,7 +100,7 @@ where
     BUSY: InputPin,
     DC: OutputPin,
     RST: OutputPin,
-    DELAY: DelayMs<u8>,
+    DELAY: DelayUs,
 {
     type DisplayColor = Color;
     fn new(
@@ -235,7 +231,7 @@ where
     BUSY: InputPin,
     DC: OutputPin,
     RST: OutputPin,
-    DELAY: DelayMs<u8>,
+    DELAY: DelayUs,
 {
     fn command(&mut self, spi: &mut SPI, command: Command) -> Result<(), SPI::Error> {
         self.interface.cmd(spi, command)
diff --git a/src/epd7in5_hd/mod.rs b/src/epd7in5_hd/mod.rs
index d4f4983..4b248df 100644
--- a/src/epd7in5_hd/mod.rs
+++ b/src/epd7in5_hd/mod.rs
@@ -9,11 +9,7 @@
 //! - [Datasheet](https://www.waveshare.com/w/upload/2/27/7inch_HD_e-Paper_Specification.pdf)
 //! - [Waveshare Python driver](https://github.com/waveshare/e-Paper/blob/master/RaspberryPi_JetsonNano/python/lib/waveshare_epd/epd7in5_HD.py)
 //!
-use embedded_hal::{
-    blocking::{delay::*, spi::Write},
-    digital::v2::{InputPin, OutputPin},
-};
-
+use crate::eh_prelude::*;
 use crate::color::Color;
 use crate::interface::DisplayInterface;
 use crate::traits::{InternalWiAdditions, RefreshLut, WaveshareDisplay};
@@ -51,7 +47,7 @@ where
     BUSY: InputPin,
     DC: OutputPin,
     RST: OutputPin,
-    DELAY: DelayMs<u8>,
+    DELAY: DelayUs,
 {
     fn init(&mut self, spi: &mut SPI, delay: &mut DELAY) -> Result<(), SPI::Error> {
         // Reset the device
@@ -104,7 +100,7 @@ where
     BUSY: InputPin,
     DC: OutputPin,
     RST: OutputPin,
-    DELAY: DelayMs<u8>,
+    DELAY: DelayUs,
 {
     type DisplayColor = Color;
     fn new(
@@ -232,7 +228,7 @@ where
     BUSY: InputPin,
     DC: OutputPin,
     RST: OutputPin,
-    DELAY: DelayMs<u8>,
+    DELAY: DelayUs,
 {
     fn command(&mut self, spi: &mut SPI, command: Command) -> Result<(), SPI::Error> {
         self.interface.cmd(spi, command)
diff --git a/src/epd7in5_v2/mod.rs b/src/epd7in5_v2/mod.rs
index 93d527c..e0fb254 100644
--- a/src/epd7in5_v2/mod.rs
+++ b/src/epd7in5_v2/mod.rs
@@ -10,11 +10,7 @@
 //! Revision V2 has been released on 2019.11, the resolution is upgraded to 800×480, from 640×384 of V1.
 //! The hardware and interface of V2 are compatible with V1, however, the related software should be updated.
 
-use embedded_hal::{
-    blocking::{delay::*, spi::Write},
-    digital::{InputPin, OutputPin},
-};
-
+use crate::eh_prelude::*;
 use crate::color::Color;
 use crate::interface::DisplayInterface;
 use crate::traits::{InternalWiAdditions, RefreshLut, WaveshareDisplay};
@@ -52,7 +48,7 @@ where
     BUSY: InputPin,
     DC: OutputPin,
     RST: OutputPin,
-    DELAY: DelayMs<u8>,
+    DELAY: DelayUs,
 {
     fn init(&mut self, spi: &mut SPI, delay: &mut DELAY) -> Result<(), SPI::Error> {
         // Reset the device
@@ -86,7 +82,7 @@ where
     BUSY: InputPin,
     DC: OutputPin,
     RST: OutputPin,
-    DELAY: DelayMs<u8>,
+    DELAY: DelayUs,
 {
     type DisplayColor = Color;
     fn new(
@@ -209,7 +205,7 @@ where
     BUSY: InputPin,
     DC: OutputPin,
     RST: OutputPin,
-    DELAY: DelayMs<u8>,
+    DELAY: DelayUs,
 {
     fn command(&mut self, spi: &mut SPI, command: Command) -> Result<(), SPI::Error> {
         self.interface.cmd(spi, command)
diff --git a/src/interface.rs b/src/interface.rs
index 04ab631..0c9ac71 100644
--- a/src/interface.rs
+++ b/src/interface.rs
@@ -1,9 +1,6 @@
 use crate::traits::Command;
 use core::marker::PhantomData;
-use embedded_hal::{
-    blocking::{delay::*, spi::Write},
-    digital::*,
-};
+use crate::eh_prelude::*;
 
 /// The Connection Interface of all (?) Waveshare EPD-Devices
 ///
@@ -29,7 +26,7 @@ where
     BUSY: InputPin,
     DC: OutputPin,
     RST: OutputPin,
-    DELAY: DelayMs<u8>,
+    DELAY: DelayUs,
 {
     pub fn new(cs: CS, busy: BUSY, dc: DC, rst: RST) -> Self {
         DisplayInterface {
@@ -47,7 +44,7 @@ where
     /// Enables direct interaction with the device with the help of [data()](DisplayInterface::data())
     pub(crate) fn cmd<T: Command>(&mut self, spi: &mut SPI, command: T) -> Result<(), SPI::Error> {
         // low for commands
-        let _ = self.dc.try_set_low();
+        let _ = self.dc.set_low();
 
         // Transfer the command over spi
         self.write(spi, &[command.address()])
@@ -58,7 +55,7 @@ where
     /// Enables direct interaction with the device with the help of [command()](Epd4in2::command())
     pub(crate) fn data(&mut self, spi: &mut SPI, data: &[u8]) -> Result<(), SPI::Error> {
         // high for data
-        let _ = self.dc.try_set_high();
+        let _ = self.dc.set_high();
 
         for val in data.iter().copied() {
             // Transfer data one u8 at a time over spi
@@ -91,7 +88,7 @@ where
         repetitions: u32,
     ) -> Result<(), SPI::Error> {
         // high for data
-        let _ = self.dc.try_set_high();
+        let _ = self.dc.set_high();
         // Transfer data (u8) over spi
         for _ in 0..repetitions {
             self.write(spi, &[val])?;
@@ -102,21 +99,21 @@ where
     // spi write helper/abstraction function
     fn write(&mut self, spi: &mut SPI, data: &[u8]) -> Result<(), SPI::Error> {
         // activate spi with cs low
-        let _ = self.cs.try_set_low();
+        let _ = self.cs.set_low();
 
         // transfer spi data
         // Be careful!! Linux has a default limit of 4096 bytes per spi transfer
         // see https://raspberrypi.stackexchange.com/questions/65595/spi-transfer-fails-with-buffer-size-greater-than-4096
         if cfg!(target_os = "linux") {
             for data_chunk in data.chunks(4096) {
-                spi.try_write(data_chunk)?;
+                spi.write(data_chunk)?;
             }
         } else {
-            spi.try_write(data)?;
+            spi.write(data)?;
         }
 
         // deactivate spi with cs high
-        let _ = self.cs.try_set_high();
+        let _ = self.cs.set_high();
 
         Ok(())
     }
@@ -158,8 +155,8 @@ where
     /// Most likely there was a mistake with the 2in9 busy connection
     /// //TODO: use the #cfg feature to make this compile the right way for the certain types
     pub(crate) fn is_busy(&self, is_busy_low: bool) -> bool {
-        (is_busy_low && self.busy.try_is_low().unwrap_or(false))
-            || (!is_busy_low && self.busy.try_is_high().unwrap_or(false))
+        (is_busy_low && self.busy.is_low().unwrap_or(false))
+            || (!is_busy_low && self.busy.is_high().unwrap_or(false))
     }
 
     /// Resets the device.
@@ -169,15 +166,15 @@ where
     /// The timing of keeping the reset pin low seems to be important and different per device.
     /// Most displays seem to require keeping it low for 10ms, but the 7in5_v2 only seems to reset
     /// properly with 2ms
-    pub(crate) fn reset(&mut self, delay: &mut DELAY, duration: u8) {
-        let _ = self.rst.try_set_high();
-        delay.try_delay_ms(10);
+    pub(crate) fn reset(&mut self, delay: &mut DELAY, duration: u32) {
+        let _ = self.rst.set_high();
+        delay.delay_ms(10);
 
-        let _ = self.rst.try_set_low();
-        delay.try_delay_ms(duration);
-        let _ = self.rst.try_set_high();
+        let _ = self.rst.set_low();
+        delay.delay_ms(duration);
+        let _ = self.rst.set_high();
         //TODO: the upstream libraries always sleep for 200ms here
         // 10ms works fine with just for the 7in5_v2 but this needs to be validated for other devices
-        delay.try_delay_ms(200);
+        delay.delay_ms(200);
     }
 }
diff --git a/src/lib.rs b/src/lib.rs
index 2fe9c5f..7f0eeb6 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -103,6 +103,10 @@ pub mod prelude {
     pub use crate::graphics::{Display, DisplayRotation, OctDisplay, TriDisplay};
 }
 
+pub(crate) mod eh_prelude {
+    pub(crate) use embedded_hal::{delay::blocking::DelayUs, spi::blocking::Write, digital::blocking::{InputPin, OutputPin}};
+}
+
 /// Computes the needed buffer length. Takes care of rounding up in case width
 /// is not divisible by 8.
 ///
diff --git a/src/traits.rs b/src/traits.rs
index ad81034..23123a4 100644
--- a/src/traits.rs
+++ b/src/traits.rs
@@ -1,8 +1,5 @@
 use core::marker::Sized;
-use embedded_hal::{
-    blocking::{delay::*, spi::Write},
-    digital::*,
-};
+use crate::eh_prelude::*;
 
 /// All commands need to have this trait which gives the address of the command
 /// which needs to be send via SPI with activated CommandsPin (Data/Command Pin in CommandMode)
@@ -33,7 +30,7 @@ where
     BUSY: InputPin,
     DC: OutputPin,
     RST: OutputPin,
-    DELAY: DelayMs<u8>,
+    DELAY: DelayUs,
 {
     /// This initialises the EPD and powers it up
     ///
@@ -57,7 +54,7 @@ where
     BUSY: InputPin,
     DC: OutputPin,
     RST: OutputPin,
-    DELAY: DelayMs<u8>,
+    DELAY: DelayUs,
 {
     /// Transmit data to the SRAM of the EPD
     ///
@@ -133,7 +130,7 @@ where
     BUSY: InputPin,
     DC: OutputPin,
     RST: OutputPin,
-    DELAY: DelayMs<u8>,
+    DELAY: DelayUs,
 {
     /// The Color Type used by the Display
     type DisplayColor;
@@ -288,7 +285,7 @@ where
     BUSY: InputPin,
     DC: OutputPin,
     RST: OutputPin,
-    DELAY: DelayMs<u8>,
+    DELAY: DelayUs,
 {
     /// Updates the old frame.
     fn update_old_frame(