Update README.md

Author: rafguevara14

README.md

@@ -8,3 +8,6 @@ To ensure that VSCode recognizes the Arduino include paths, open the `DAQ_FW` fo
 
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+## Archived project
+
+The original DAQ project was developed in Python for the Raspberry Pi 4. Due to supply shortages, the project switched to an ESP32 microcontroller. The codebase for the original project can be found in this branch: https://github.com/sfuphantom/DAQ/tree/RaspberryPi-Archive-2021