diff --git a/.gitmodules b/.gitmodules
index 88de5d1..bfa66fd 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -10,3 +10,6 @@
 [submodule "eink/flash"]
 	path = eink/flash
 	url = git@git.blackmark.me:avr/flash.git
+[submodule "eink/spi"]
+	path = eink/spi
+	url = git@git.blackmark.me:avr/spi.git
diff --git a/eink/clock.hpp b/eink/clock.hpp
index 376492e..052799d 100644
--- a/eink/clock.hpp
+++ b/eink/clock.hpp
@@ -1,4 +1,4 @@
 #pragma once
 
-#define F_CPU 8'000'000
+#define F_CPU 16'000'000
 #include <util/delay.h>
diff --git a/eink/eink b/eink/eink
new file mode 160000
index 0000000..08dd107
--- /dev/null
+++ b/eink/eink
@@ -0,0 +1 @@
+Subproject commit 08dd1073af43b65b358257b968852aae8fc77946
diff --git a/eink/eink.cppproj b/eink/eink.cppproj
index d232554..87e345f 100644
--- a/eink/eink.cppproj
+++ b/eink/eink.cppproj
@@ -83,6 +83,17 @@
     </custom>
     <AAFDebugger>
       <AAFDebugFiles>
+        <DebugFile>
+          <path>\Debug\eink.lss</path>
+          <AAFSetting>
+            <Label>Lss Files</Label>
+            <Extention>.lss</Extention>
+            <Regex>^\s*(?&lt;address&gt;[a-f0-9]*):\s*.*$</Regex>
+            <DebugEnabled>true</DebugEnabled>
+            <RegexGroups>address</RegexGroups>
+            <DebuggerExpression>$pc</DebuggerExpression>
+          </AAFSetting>
+        </DebugFile>
       </AAFDebugFiles>
     </AAFDebugger>
   </PropertyGroup>
@@ -146,67 +157,76 @@
   <PropertyGroup Condition=" '$(Configuration)' == 'Debug' ">
     <ToolchainSettings>
       <AvrGccCpp>
-        <avrgcc.common.Device>-mmcu=atmega328p</avrgcc.common.Device>
-        <avrgcc.common.outputfiles.hex>True</avrgcc.common.outputfiles.hex>
-        <avrgcc.common.outputfiles.lss>True</avrgcc.common.outputfiles.lss>
-        <avrgcc.common.outputfiles.eep>True</avrgcc.common.outputfiles.eep>
-        <avrgcc.common.outputfiles.srec>True</avrgcc.common.outputfiles.srec>
-        <avrgcc.common.outputfiles.usersignatures>False</avrgcc.common.outputfiles.usersignatures>
-        <avrgcc.compiler.general.ChangeDefaultCharTypeUnsigned>True</avrgcc.compiler.general.ChangeDefaultCharTypeUnsigned>
-        <avrgcc.compiler.general.ChangeDefaultBitFieldUnsigned>True</avrgcc.compiler.general.ChangeDefaultBitFieldUnsigned>
-        <avrgcc.compiler.symbols.DefSymbols>
-          <ListValues>
-            <Value>DEBUG</Value>
-          </ListValues>
-        </avrgcc.compiler.symbols.DefSymbols>
-        <avrgcc.compiler.directories.IncludePaths>
-          <ListValues>
-            <Value>%24(PackRepoDir)\Atmel\ATmega_DFP\1.4.346\include</Value>
-          </ListValues>
-        </avrgcc.compiler.directories.IncludePaths>
-        <avrgcc.compiler.optimization.level>Optimize (-O1)</avrgcc.compiler.optimization.level>
-        <avrgcc.compiler.optimization.AllocateBytesNeededForEnum>True</avrgcc.compiler.optimization.AllocateBytesNeededForEnum>
-        <avrgcc.compiler.optimization.DebugLevel>Maximum (-g3)</avrgcc.compiler.optimization.DebugLevel>
-        <avrgcc.compiler.warnings.AllWarnings>True</avrgcc.compiler.warnings.AllWarnings>
-        <avrgcc.compiler.warnings.ExtraWarnings>True</avrgcc.compiler.warnings.ExtraWarnings>
-        <avrgcc.compiler.warnings.Pedantic>True</avrgcc.compiler.warnings.Pedantic>
-        <avrgcc.compiler.miscellaneous.OtherFlags>-fno-threadsafe-statics -std=c11</avrgcc.compiler.miscellaneous.OtherFlags>
-        <avrgcccpp.compiler.general.ChangeDefaultCharTypeUnsigned>True</avrgcccpp.compiler.general.ChangeDefaultCharTypeUnsigned>
-        <avrgcccpp.compiler.general.ChangeDefaultBitFieldUnsigned>True</avrgcccpp.compiler.general.ChangeDefaultBitFieldUnsigned>
-        <avrgcccpp.compiler.symbols.DefSymbols>
-          <ListValues>
-            <Value>DEBUG</Value>
-          </ListValues>
-        </avrgcccpp.compiler.symbols.DefSymbols>
-        <avrgcccpp.compiler.directories.IncludePaths>
-          <ListValues>
-            <Value>%24(PackRepoDir)\Atmel\ATmega_DFP\1.4.346\include</Value>
-          </ListValues>
-        </avrgcccpp.compiler.directories.IncludePaths>
-        <avrgcccpp.compiler.optimization.level>Optimize debugging experience (-Og)</avrgcccpp.compiler.optimization.level>
-        <avrgcccpp.compiler.optimization.AllocateBytesNeededForEnum>True</avrgcccpp.compiler.optimization.AllocateBytesNeededForEnum>
-        <avrgcccpp.compiler.optimization.DebugLevel>Maximum (-g3)</avrgcccpp.compiler.optimization.DebugLevel>
-        <avrgcccpp.compiler.warnings.AllWarnings>True</avrgcccpp.compiler.warnings.AllWarnings>
-        <avrgcccpp.compiler.warnings.Pedantic>True</avrgcccpp.compiler.warnings.Pedantic>
-        <avrgcccpp.compiler.miscellaneous.OtherFlags>-fno-threadsafe-statics -Wextra -std=c++17</avrgcccpp.compiler.miscellaneous.OtherFlags>
-        <avrgcccpp.linker.libraries.Libraries>
-          <ListValues>
-            <Value>libm</Value>
-          </ListValues>
-        </avrgcccpp.linker.libraries.Libraries>
-        <avrgcccpp.assembler.general.IncludePaths>
-          <ListValues>
-            <Value>%24(PackRepoDir)\Atmel\ATmega_DFP\1.4.346\include</Value>
-          </ListValues>
-        </avrgcccpp.assembler.general.IncludePaths>
-        <avrgcccpp.assembler.debugging.DebugLevel>Default (-Wa,-g)</avrgcccpp.assembler.debugging.DebugLevel>
-      </AvrGccCpp>
+  <avrgcc.common.Device>-mmcu=atmega328p</avrgcc.common.Device>
+  <avrgcc.common.outputfiles.hex>True</avrgcc.common.outputfiles.hex>
+  <avrgcc.common.outputfiles.lss>True</avrgcc.common.outputfiles.lss>
+  <avrgcc.common.outputfiles.eep>True</avrgcc.common.outputfiles.eep>
+  <avrgcc.common.outputfiles.srec>True</avrgcc.common.outputfiles.srec>
+  <avrgcc.common.outputfiles.usersignatures>False</avrgcc.common.outputfiles.usersignatures>
+  <avrgcc.compiler.general.ChangeDefaultCharTypeUnsigned>True</avrgcc.compiler.general.ChangeDefaultCharTypeUnsigned>
+  <avrgcc.compiler.general.ChangeDefaultBitFieldUnsigned>True</avrgcc.compiler.general.ChangeDefaultBitFieldUnsigned>
+  <avrgcc.compiler.symbols.DefSymbols>
+    <ListValues>
+      <Value>DEBUG</Value>
+    </ListValues>
+  </avrgcc.compiler.symbols.DefSymbols>
+  <avrgcc.compiler.directories.IncludePaths>
+    <ListValues>
+      <Value>%24(PackRepoDir)\Atmel\ATmega_DFP\1.4.346\include</Value>
+    </ListValues>
+  </avrgcc.compiler.directories.IncludePaths>
+  <avrgcc.compiler.optimization.level>Optimize (-O1)</avrgcc.compiler.optimization.level>
+  <avrgcc.compiler.optimization.AllocateBytesNeededForEnum>True</avrgcc.compiler.optimization.AllocateBytesNeededForEnum>
+  <avrgcc.compiler.optimization.DebugLevel>Maximum (-g3)</avrgcc.compiler.optimization.DebugLevel>
+  <avrgcc.compiler.warnings.AllWarnings>True</avrgcc.compiler.warnings.AllWarnings>
+  <avrgcc.compiler.warnings.ExtraWarnings>True</avrgcc.compiler.warnings.ExtraWarnings>
+  <avrgcc.compiler.warnings.Pedantic>True</avrgcc.compiler.warnings.Pedantic>
+  <avrgcc.compiler.miscellaneous.OtherFlags>-fno-threadsafe-statics -std=c11</avrgcc.compiler.miscellaneous.OtherFlags>
+  <avrgcccpp.compiler.general.ChangeDefaultCharTypeUnsigned>True</avrgcccpp.compiler.general.ChangeDefaultCharTypeUnsigned>
+  <avrgcccpp.compiler.general.ChangeDefaultBitFieldUnsigned>True</avrgcccpp.compiler.general.ChangeDefaultBitFieldUnsigned>
+  <avrgcccpp.compiler.symbols.DefSymbols>
+    <ListValues>
+      <Value>DEBUG</Value>
+    </ListValues>
+  </avrgcccpp.compiler.symbols.DefSymbols>
+  <avrgcccpp.compiler.directories.IncludePaths>
+    <ListValues>
+      <Value>%24(PackRepoDir)\Atmel\ATmega_DFP\1.4.346\include</Value>
+    </ListValues>
+  </avrgcccpp.compiler.directories.IncludePaths>
+  <avrgcccpp.compiler.optimization.level>Optimize debugging experience (-Og)</avrgcccpp.compiler.optimization.level>
+  <avrgcccpp.compiler.optimization.AllocateBytesNeededForEnum>True</avrgcccpp.compiler.optimization.AllocateBytesNeededForEnum>
+  <avrgcccpp.compiler.optimization.DebugLevel>Maximum (-g3)</avrgcccpp.compiler.optimization.DebugLevel>
+  <avrgcccpp.compiler.warnings.AllWarnings>True</avrgcccpp.compiler.warnings.AllWarnings>
+  <avrgcccpp.compiler.warnings.Pedantic>True</avrgcccpp.compiler.warnings.Pedantic>
+  <avrgcccpp.compiler.miscellaneous.OtherFlags>-fno-threadsafe-statics -Wextra -std=c++17</avrgcccpp.compiler.miscellaneous.OtherFlags>
+  <avrgcccpp.linker.libraries.Libraries>
+    <ListValues>
+      <Value>libm</Value>
+    </ListValues>
+  </avrgcccpp.linker.libraries.Libraries>
+  <avrgcccpp.assembler.general.IncludePaths>
+    <ListValues>
+      <Value>%24(PackRepoDir)\Atmel\ATmega_DFP\1.4.346\include</Value>
+    </ListValues>
+  </avrgcccpp.assembler.general.IncludePaths>
+  <avrgcccpp.assembler.debugging.DebugLevel>Default (-Wa,-g)</avrgcccpp.assembler.debugging.DebugLevel>
+</AvrGccCpp>
     </ToolchainSettings>
   </PropertyGroup>
   <ItemGroup>
     <Compile Include="clock.hpp">
       <SubType>compile</SubType>
     </Compile>
+    <Compile Include="eink\epd1in54b_V2.h">
+      <SubType>compile</SubType>
+    </Compile>
+    <Compile Include="eink\imagedata.cpp">
+      <SubType>compile</SubType>
+    </Compile>
+    <Compile Include="eink\imagedata.h">
+      <SubType>compile</SubType>
+    </Compile>
     <Compile Include="flash\flash.hpp">
       <SubType>compile</SubType>
     </Compile>
@@ -216,6 +236,15 @@
     <Compile Include="main.cpp">
       <SubType>compile</SubType>
     </Compile>
+    <Compile Include="spi\config.hpp">
+      <SubType>compile</SubType>
+    </Compile>
+    <Compile Include="spi\hardware.hpp">
+      <SubType>compile</SubType>
+    </Compile>
+    <Compile Include="spi\spi.hpp">
+      <SubType>compile</SubType>
+    </Compile>
     <Compile Include="uart\config.hpp">
       <SubType>compile</SubType>
     </Compile>
@@ -253,6 +282,8 @@
   <ItemGroup>
     <Folder Include="flash" />
     <Folder Include="io" />
+    <Folder Include="eink" />
+    <Folder Include="spi" />
     <Folder Include="util" />
     <Folder Include="uart" />
   </ItemGroup>
diff --git a/eink/main.cpp b/eink/main.cpp
index c2297b8..12607ef 100644
--- a/eink/main.cpp
+++ b/eink/main.cpp
@@ -2,20 +2,48 @@
 
 #include "flash/flash.hpp"
 #include "io/io.hpp"
+#include "spi/spi.hpp"
 #include "uart/uart.hpp"
 
+#include "eink/epd1in54b_V2.h"
+#include "eink/imagedata.h"
+
 using uart_t = uart::Uart0<>;
 REGISTER_UART0_INT_VECTORS(uart_t);
 
 //////////////////////////////////////////////////////////////////////////
 int main()
 {
+	using spi_t = spi::Hardware<spi::Config<>>;
+
 	uart_t serial;
 	serial.init();
+
 	sei();
 
+	serial << F("e-Paper demo") << F("\r\n");
+
+	Epd<spi_t> epd;
+	if (epd.Init() != 0) {
+		serial << F("e-Paper init failed") << F("\r\n");
+		serial.flushTx();
+		_delay_ms(1000);
+		return 0;
+	}
+
+	serial << F("e-Paper init") << F("\r\n");
+
+	serial << F("e-Paper clear") << F("\r\n");
+	epd.DisplayClear();
+
+	serial << F("e-Paper draw") << F("\r\n");
+	epd.DisplayFrame(IMAGE_BLACK, IMAGE_RED);
+	
+	serial << F("e-Paper sleep") << F("\r\n");
+	epd.Sleep();
+
 	while (true) {
-		serial << F("Hello World!") << F("\r\n");
+		serial << F("e-Paper running") << F("\r\n");
 		_delay_ms(1000);
 	}
 
diff --git a/eink/spi b/eink/spi
new file mode 160000
index 0000000..70aabc0
--- /dev/null
+++ b/eink/spi
@@ -0,0 +1 @@
+Subproject commit 70aabc07f64a33b04e3e9ee00627f5c120b1f9ef