Email Detail

HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/KFABJ7T7PQ5ZZP2IVHT24BICZ5GJMGDM/",
    "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/",
    "message_id": "[email protected]",
    "message_id_hash": "KFABJ7T7PQ5ZZP2IVHT24BICZ5GJMGDM",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/VLMW6JXCPU64CMFAJBE3WTNZTBMRUSIL/",
    "sender": {
        "address": "David.Bern (a) Engineer.com",
        "mailman_id": "72d9e7f6c3fe4430b68ad823493011c0",
        "emails": "https://mailman.amsat.org/hyperkitty/api/sender/72d9e7f6c3fe4430b68ad823493011c0/emails/"
    },
    "sender_name": "David Bern",
    "subject": "[amsat-dc] Re: wanted: to borrow or buy a Yaesu G-5500 AZ-EL controller and rotor",
    "date": "2013-06-02T10:03:51Z",
    "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/3MMW7ABBXE7QKLSLT4EQVZ6K362DSS65/",
    "children": [
        "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/DLSGVQ75HBHGQYXHAGUSZLNSGA7LX43W/"
    ],
    "votes": {
        "likes": 0,
        "dislikes": 0,
        "status": "neutral"
    },
    "content": "Louie:\n\nAll good ideas.  The Raspberry Pi or BeagleBone Black little Linux \ncomputers gives us the possibility of running a tracking program such as \npredict\n\n    http://www.qsl.net/kd2bd/predict.html\n\n\nor gpredict\n\n    http://gpredict.oz9aec.net/\n\n\nin addition to a protocol converter.  I especially like the idea of \ncontrolling a telescope drive.  This project could be useful to \nastronomy buffs.\n\nI am teaching my students a software engineering principle that it is \nvaluable to be as generic as possible; that is, to be platform agnostic \nand protocol agnostic.  It is a more work in the short-term but the \nbenefits are huge in the long-run.  I told them that hard comes and goes \nbuy software is forever.  On Thursday, I told them, for example, that \nthe initial version of a protocol converter would take a protocol in and \nthen produce the same protocol out: to really understand a protocol, you \nneed to be able to read and write the protocol.  We dubbed this a \"null\" \nprotocol converter and it should do nothing correctly, i. e. bits in and \nthe same bits out.  The plan is to implement a \"null\" protocol converter \nfor the DiSEqC and the EasyComm protocols that we are learning.  Once we \nhave these two null protocol converters working then we have the pieces \nto easily configure a DiSEqC to EasyComm protocol converter.\n\nDavid, WL2NX\n\n\nOn 06/01/2013 10:04 AM, Louis Mamakos wrote:\n> Perhaps this might be of help:http://gatorradio.org/Manuals/Yaesu_GS-232B_Manual.pdf\n>\n> It might be cool to build the controller around an inexpensive Raspberry-Pi or BeagleBone Linux controller that has an ethernet interface available.  You could export a simple REST-based HTTP API, as well as emulating the Yaesu serial protocol over a TCP connection.  A simple HTTP API might make testing easier, perhaps.  You could easily return status and debugging information if you used an extensible encoding format like JSON.\n>\n> For bonus points, you could also implement the Meade or Celestron serial protocol to be able to drive the rotor like it was a telescope mount from various astronomy-oriented programs that might be useful for locating the moon, Jupiter or tracking satellites.  It would be a shame to build something new a modern and saddle it with only an ancient serial protocol that might not be the best choice for today.\n>\n> Just a thought.\n>\n> louie\n> wa3ymh\n>\n> On May 31, 2013, at 10:50 AM, David Bern<[email protected]>  wrote:\n>\n>> Friends:\n>>\n>> I am working on a summer project with students at Montgomery College, Rockville.  The project is to design and build a device that controls a pair of inexpensive satellite TV rotors.  And the device would emulate a popular AZ-EL rotor such as a Yaesu G-5500 AZ-EL controller so it can be used by a satellite tracking program such as SatPC32.  Tom, K3IO suggested this project at the last AMSAT-DC workshop and is guiding us with this project.\n>>\n>> I would like to borrow a Yaesu G-5500 AZ-EL controller and rotor for about three months or buy a used one so we can study and understand its command protocol.\n>>\n>> I will pick up or pay for shipping.  Please contact David, W2LNX directly at\n>>\n>>    [email protected]\n>>\n>>\n>> Thank you,\n>> David, W2LNX\n>> _______________________________________________\n>> Via the AMSAT-DC mailing list courtesy of AMSAT-NA\n>> [email protected]\n>> http://amsat.org/mailman/listinfo/amsat-dc\n\n",
    "attachments": []
}