diff --git a/.gitignore b/.gitignore
index 088ba6b..51c87c3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -8,3 +8,5 @@ Cargo.lock
 
 # These are backup files generated by rustfmt
 **/*.rs.bk
+
+/.vscode/.cortex-debug.*
diff --git a/.gitmodules b/.gitmodules
index dc3c67c..3ab3126 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -7,3 +7,6 @@
 [submodule "va108xx-hal-rs"]
 	path = va108xx-hal-rs
 	url = https://github.com/robamu-org/va108xx-hal-rs.git
+[submodule "adt75-rs"]
+	path = adt75-rs
+	url = https://egit.irs.uni-stuttgart.de/rust/adt75-rs.git
diff --git a/.vscode/launch.json b/.vscode/launch.json
index 4e97c41..531953f 100644
--- a/.vscode/launch.json
+++ b/.vscode/launch.json
@@ -83,11 +83,38 @@
             "cwd": "${workspaceRoot}",
             "device": "VA10820",
             "svdFile": "./va108xx-rs/svd/va108xx-base.svd.patched",
-            "preLaunchTask": "rust: cargo build button uart",
+            "preLaunchTask": "rust: cargo build uart",
             "executable": "${workspaceFolder}/target/thumbv6m-none-eabi/debug/examples/uart",
             "interface": "jtag",
             "runToMain": true,
         },
-        
+        {
+            "type": "cortex-debug",
+            "request": "launch",
+            "name": "Debug SPI",
+            "servertype": "jlink",
+            "gdbPath": "/usr/bin/gdb-multiarch",
+            "cwd": "${workspaceRoot}",
+            "device": "VA10820",
+            "svdFile": "./va108xx-rs/svd/va108xx-base.svd.patched",
+            "preLaunchTask": "rust: cargo build spi",
+            "executable": "${workspaceFolder}/target/thumbv6m-none-eabi/debug/examples/spi",
+            "interface": "jtag",
+            "runToMain": true,
+        },
+        {
+            "type": "cortex-debug",
+            "request": "launch",
+            "name": "Debug I2C / Temperature Sensor",
+            "servertype": "jlink",
+            "gdbPath": "/usr/bin/gdb-multiarch",
+            "cwd": "${workspaceRoot}",
+            "device": "VA10820",
+            "svdFile": "./va108xx-rs/svd/va108xx-base.svd.patched",
+            "preLaunchTask": "rust: cargo build temp sensor",
+            "executable": "${workspaceFolder}/target/thumbv6m-none-eabi/debug/examples/temp-sensor",
+            "interface": "jtag",
+            "runToMain": true,
+        },
     ]
 }
\ No newline at end of file
diff --git a/.vscode/tasks.json b/.vscode/tasks.json
index cb2762e..3f79530 100644
--- a/.vscode/tasks.json
+++ b/.vscode/tasks.json
@@ -21,6 +21,7 @@
             "command": "~/.cargo/bin/cargo", // note: full path to the cargo
             "args": [
                 "build", "-p", "va108xx-hal", "--example", "tests",
+                "--features", "rt"
             ],
             "group": {
                 "kind": "build",
@@ -53,7 +54,7 @@
             }
         },
         {
-            "label": "rust: cargo build button uart",
+            "label": "rust: cargo build uart",
             "type": "shell",
             "command": "~/.cargo/bin/cargo", // note: full path to the cargo
             "args": [
@@ -64,6 +65,18 @@
                 "isDefault": true
             }
         },
+        {
+            "label": "rust: cargo build spi",
+            "type": "shell",
+            "command": "~/.cargo/bin/cargo", // note: full path to the cargo
+            "args": [
+                "build", "-p", "va108xx-hal", "--example", "spi",
+            ],
+            "group": {
+                "kind": "build",
+                "isDefault": true
+            }
+        },
 
         {
             "label": "rust: cargo build led blinky",
@@ -89,5 +102,17 @@
                 "isDefault": true
             }
         },
+        {
+            "label": "rust: cargo build temp sensor",
+            "type": "shell",
+            "command": "~/.cargo/bin/cargo", // note: full path to the cargo
+            "args": [
+                "build", "-p", "vorago-reb1", "--example", "temp-sensor",
+            ],
+            "group": {
+                "kind": "build",
+                "isDefault": true
+            }
+        },
     ]
 }
\ No newline at end of file
diff --git a/adt75-rs b/adt75-rs
new file mode 160000
index 0000000..8b7121e
--- /dev/null
+++ b/adt75-rs
@@ -0,0 +1 @@
+Subproject commit 8b7121eb4771c2537c6123f632d20fbfb2ba3657
diff --git a/docs/ADT75.pdf b/docs/ADT75.pdf
new file mode 100644
index 0000000..19d4e8c
Binary files /dev/null and b/docs/ADT75.pdf differ