diff --git a/src/hardware/fram.rs b/src/hardware/fram.rs
new file mode 100644
index 0000000..f87dfe6
--- /dev/null
+++ b/src/hardware/fram.rs
@@ -0,0 +1,9 @@
+const DEVICE_TYPE_CODE: u8 = 0b10100000;
+
+const DEVICE_ADDRESS_CODE: u8 = 0b000000;   // 3 bits for device address | default A0 = 0 A1 = 0 A2 = 0 
+
+const WRITE_CODE: u8 = 0b00000000; // 0 for write
+const READ_CODE: u8 = 0b00000001; // 1 for read
+
+const DEVICE_ADDRESS_WRITE: u8 = DEVICE_TYPE_CODE | DEVICE_ADDRESS_CODE | WRITE_CODE;  // I2C address write for FRAM
+const DEVICE_ADDRESS_READ: u8 = DEVICE_TYPE_CODE | DEVICE_ADDRESS_CODE | READ_CODE;  // I2C address read for FRAM 
\ No newline at end of file
diff --git a/src/hardware/rtc.rs b/src/hardware/rtc.rs
new file mode 100644
index 0000000..e69de29