Portable Rotor
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Julie proposed making a portable rotor for sat work. It could be used for a field day, tabling, events, and other times when we’re not in the shack. A stationary version could be made for in the penthouse.
Rotor Build[edit]
Early Parts List (Structural)[edit]
- Hardwood 1"x3"x8'$9
- Steel corner brace $9
- Aluminum Round Rod 1" (Axels) $20
- 1" Hex Nuts $9
- 1" ID Thrust Bearings $9
- Small Sprocket $8
- Large Sprocket $26*2
- 1" ID normal Bearing $11
- Drive Chain $15
- Electronics Box $12
Total: $154
Early parts list (Electrical)[edit]
- Pi Zero 2w $15
- Hall Effect Sensor $2
- Limit Switches $6
- Drive motor $12
- Motor drivers: TBD
Price total: ~$35
Code[edit]
The primary coding language is C. HTML will be used for a remote controlled interface. The code will have to be run on an ubuntu/debian based system as it requires access to some specific internal libraries. Currently being coded on VSC (sorry) on a debian 12 build, will be adaptable to Raspberry Pi Zero using Raspberry Pi Os.
Progress[edit]
- C library sgp4sdp4 implemented.
- Takes in user information and TLE and reads out many values including azimuth and elevation.
- Same library used in gpredict.
- Web interface still in progress, currently able to serve multiple webpages and take input.
- No progress on motor control yet.