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zdbrg - Antenna rotator for receiving HRPT/HRIT -LEO satellite transmissions (Meteor M-2, NOAA-15/18/19 & MetOp etc)

  • Raspberry Pi Zero (W) as main controller, running a super light buildroot-based OS. All wireless features are disabled by default.
  • Custom PCB for neatly connecting everything together and handling serial communiaction
  • Mostly 3d printed structural parts
  • Antenna center frequency 1700MHz (RHCP)
  • EasyCommV2 compatible for use with 'rotctld'
  • NEMA17 stepper motors: 0,9deg, 1.5A, 400SPR with full-step torque of 1,2NM. A4988 driver circuis. Printed 5:1 planetary reduction gears used for increased torque and better resistance against non-controlled, free movement while motors are disabled.