PHYSICS 420 PRESENTATION

Electrical Electrical

The electrical systems on the robotic detector is comprised of a BX-35 microcontroller, MaxSonar-EZ1 ultrasonic sensor, a simple motor controller for single direction control, power conditioning and a custom-made BFO metal detector.

Complete circuit diagrams for the setup of the BX-35 microcontroller and BFO metal detector.

  • Microcontroller Circuit Diagram
  • BFO Metal Detector Schematic


    • Available data sheets of eletronic components used

  • 2N3904 NPN Switching Transistor
  • 74HC04 Hex Inverter
  • HS-422 Hitec Servo
  • HS-645MG Hitec Servo
  • HUF75321 N-Channel Power MOSFET
  • LM7805/LM7809 1A 5V/9V Voltage Regulator
  • MaxSonar-EZ1 Ultrasonic Sensor
  • TDA2822M Dual Low-Voltage Power Amp
  • 5.5MHz Ceramic Filter
  • BX-35 Microcontroller
  • BX-35 Component Kit


    • Useful links for programming the microcontroller can be found here .


    Completed Electrical Circuit