文件列表:

LICENSE (1070, 2023-04-05)
tracker_main (0, 2023-04-05)
tracker_main\LICENSE (1064, 2023-04-05)
tracker_main\Predict.ino (1160, 2023-04-05)
tracker_main\getTLE.ino (1052, 2023-04-05)
tracker_main\readLinuxEpochUsingNTP.ino (1189, 2023-04-05)
tracker_main\sendNTPpacket.ino (855, 2023-04-05)
tracker_main\tracker_main.ino (10022, 2023-04-05)

### 2023 Update I made this project a couple years ago and since then Celestrak has moved from http to https. Unfortunately I don't think the Arduino MKR 1000 supports https requests. I'm working on an updated version of this project using an ESP-32 which is much cheaper anyways. So as it is, the code in this repo will not work anymore sorry. # SatelliteTracker This repository contains the code for my satellite tracker:

Link to the project on Hackster.io: https://www.hackster.io/alex_chang/satellite-tracker-13a9aa
Link to post on Reddit: https://www.reddit.com/r/3Dprinting/comments/hr43pz/i_made_a_3d_printed_satellite_dish_that_tracks/ ### Getting started * This code was written for use with the Arduino MKR 1000 WiFi board * You will need the following libraries:
https://github.com/Hopperpop/Sgp4-Library
https://github.com/arduino-libraries/RTCZero
https://www.airspayce.com/mikem/arduino/AccelStepper/ * **Place all the .INO files from this repository into the same folder on your computer, name it "tracker_main".** * If you only want to track the ISS you can use the modified code in the trackISS branch on this repository. * Go to tracker_main.ino and change the values under the section "to be modify by user" for your location and satellites of interest * TLEs of satellites are obtained from Celestrak, simply copy the URL for the satellite you want (without the 'celestrak.com'),
for example the international space station would be "/satcat/tle.php?CATNR=25544" * After uploading the code to your MKR 1000, you should see something like this after opening the serial monitor:
``` Attempting to connect to SSID: SASKTEL Connected to wifi unixtime: 1594912657 connected to server Request #: 0 For: RADARSAT-2 Next pass for: RADARSAT-2 In: 1769 Start: az=4.63° 9:47:6.51 connected to server Request #: 1 For: NEOSSAT Next pass for: NEOSSAT In: 669 Start: az=234.11° 9:28:46.78 connected to server Request #: 2 For: M3MSAT Next pass for: M3MSAT In: 3018 Start: az=22.04° 10:7:55.41 connected to server Request #: 3 For: SCISAT Next pass for: SCISAT In: 13***2 Start: az=127.39° 13:4:59.61 Next pass for: 104.168.149.178 In: 669 Start: az=234.11° 9:28:46.78 TLE set #:0 1 32382U 07061A_ 201***.38554627 .00000214 .00000-0 .10000-3 0 9993 2 32382 ***.5752 204.5392.0001163 91.9428 44.4684 14.29***4692657108 TLE set #:1 1 39089U 13009D_ 201***.28***7130 .00000028..00000-0..25284-4 0 9995 2 39089 ***.4660 39.5659.0010910 196.2674 163.8162 14.34513825386692 TLE set #:2 1 41605U 16040G_ 201***.12638580 .00000348 .00000-0 .18478-4 0 9997 2 41605 97.3115 253.5653.0013872 97.0655 263.2159 15.21419137225658 TLE set #:3 1 27858U 03036A_ 20197.77266286 .00000016 .00000-0 .73404-5 0 9995 2 27858 73.9337 129.0770.0008***5 321.7990 38.2571 14.77294210911839 Next satellite: 1 Local time: 16/7/2020 9:17:43.00 azimuth = 199.28 elevation = -24.56 distance = 6840.21 latitude = -6.76 longitude = -123.44 altitude = 787.99 AZStep pos: 0 Status: Standby Next satellite is: NEOSSAT in: 663 ``` * Here you can verify the predictions are correct and that the local time is correct (your results will differ depending on your time/location/satellite). * The last few lines will continue to update over time and you should see the satellite approach. ### Notes * The steppers have no way of determining their positions so they assume they start at AZ = 0, EL = 20—you will have to set this up by hand. * Do not try to power the steppers using the Arduino! * To speed up testing, you can replace line 109
`timeNow = rtc.getEpoch();`
with
`timeNow = testTime;`
and replace testTime with an epoch time that is just a few mins before a satellite pass. # Author: Alex Chang You can contact me at: yuc888@mail.usask.ca

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