2 files changed, 44 insertions, 0 deletions
diff --git a/common/Cargo.toml b/common/Cargo.toml
new file mode 100644
index 0000000..bcde395
--- /dev/null
+++ b/common/Cargo.toml
@@ -0,0 +1,12 @@
+[package]
+name = "ocularium_common"
+version.workspace = true
+edition.workspace = true
+authors.workspace = true
+license.workspace = true
+homepage.workspace = true
+repository.workspace = true
+
+[dependencies]
+serde = { workspace = true, default-features = false, features = ["derive", "alloc"] }
+na = { package = "nalgebra", version = "0.32", default-features = false, features = ["serde-serialize-no-std"] }
diff --git a/common/src/lib.rs b/common/src/lib.rs
new file mode 100644
index 0000000..5dde0b9
--- /dev/null
+++ b/common/src/lib.rs
@@ -0,0 +1,32 @@
+#![no_std]
+
+extern crate alloc;
+
+use alloc::vec::Vec;
+
+#[derive(Debug, Clone, PartialEq, PartialOrd, serde::Serialize, serde::Deserialize)]
+pub enum Uplink {
+    Ping,
+}
+
+#[derive(Debug, Clone, PartialEq, PartialOrd, serde::Serialize, serde::Deserialize)]
+pub enum Downlink {
+    Pong,
+    Sensor(Sensor),
+}
+
+#[derive(Debug, Clone, PartialEq, PartialOrd, serde::Serialize, serde::Deserialize)]
+pub enum Sensor {
+    Gas {
+        temp_c:   f32,
+        pressure: f32,
+    },
+    Lux {
+        lux: f32,
+    },
+    IMU {
+        accel: na::Vector3<f32>,
+        gyro:  na::Vector3<f32>,
+    },
+    Pdm(Vec<u8>),
+}