How to achieve indoor Autonomous DIY Drone with APM 2.8 (without GPS)

Thanks for all the replies... I'm building a flying drone. My project is not so foolproof and extensive. Just need to navigate to a few points and able to detect the inventory using RFID.

My hardware are

  • apm 2.8
  • Bluetooth data link module (Comm with my laptop (Mission planner))
  • ultrasonic rangefinder sonar (altitude)

Yet to purchase

  • adafruit PN532 RFID board and tag.

I had already built and tune my drone. Next is to either explore the Guided NO GPS mode (navigation to few points) and/or integrate the RFID receiver board with APM 2.8...

Not sure how to proceed from here...