1 files changed, 47 insertions, 0 deletions
diff --git a/src/drivers/Hrs3300.h b/src/drivers/Hrs3300.h
new file mode 100644
index 00000000..c34d55c6
--- /dev/null
+++ b/src/drivers/Hrs3300.h
@@ -0,0 +1,47 @@
+#pragma once
+
+#include "TwiMaster.h"
+
+namespace Pinetime {
+  namespace Drivers {
+    class Hrs3300 {
+    public:
+      enum class Registers : uint8_t {
+        Id = 0x00,
+        Enable = 0x01,
+        EnableHen = 0x80,
+        C1dataM = 0x08,
+        C0DataM = 0x09,
+        C0DataH = 0x0a,
+        PDriver = 0x0c,
+        C1dataH = 0x0d,
+        C1dataL = 0x0e,
+        C0dataL = 0x0f,
+        Res = 0x16,
+        Hgain = 0x17
+      };
+
+      Hrs3300(TwiMaster& twiMaster, uint8_t twiAddress);
+      Hrs3300(const Hrs3300&) = delete;
+      Hrs3300& operator=(const Hrs3300&) = delete;
+      Hrs3300(Hrs3300&&) = delete;
+      Hrs3300& operator=(Hrs3300&&) = delete;
+
+      void Init();
+      void Enable();
+      void Disable();
+      uint16_t ReadHrs();
+      uint16_t ReadAls();
+      void SetGain(uint8_t gain);
+      void SetDrive(uint8_t drive);
+
+    private:
+      TwiMaster& twiMaster;
+      uint8_t twiAddress;
+
+      void WriteRegister(uint8_t reg, uint8_t data);
+      uint8_t ReadRegister(uint8_t reg);
+
+    };
+  }
+}