Imported from GitHub: ematkkona/zdbrg · commit 27ba8d1 · license GPL-2.0

Description

EasyCommv2 -compatible antenna rotator platform

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.