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zdbrg

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@ematkkona

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KiCad projectAll 8 files, ready to open in KiCad153 KBSchematic PDFEvery sheet, to read or print135 KB3D modelThe board with its parts, for an enclosure (GLB)3.2 MB
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https://boardrepo.com/ematkkona/zdbrg

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README

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.
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