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The Robman Site Owner
Joined: 01 Aug 2003 Posts: 21210 Location: Chicago, IL |
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ishootstuff
Joined: 30 May 2018 Posts: 11
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Posted: Wed Jun 27, 2018 4:33 am Post subject: |
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Looks like I need to get a remote. It's the passholder blockout month |
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The Robman Site Owner
Joined: 01 Aug 2003 Posts: 21210 Location: Chicago, IL |
Posted: Wed Jun 27, 2018 9:54 am Post subject: |
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I haven't had time to do a write-up on how this works yet, but basically the executor takes 8 fixed bytes of data, this is to allow for some of the longer signals. So what you do is either enter decimal device codes for the first few bytes, or just enter them as raw data, and then pad out the remaining 8 bytes with zeroes. For example, if you want to generate the signals that start with 0x90, enter "90 00 00 00 00 00 00 00", and if you want to generate the signals that start with 0x91 0x0E, enter "91 0E 00 00 00 00 00 00" in the raw data field.
With the current version, you'll have to create a separate upgrade for each codeset based on the fixed data that it uses, but you can use the same executor (protocol upgrade).
My next task is to create a combo version where you can combine the different codesets into one. _________________ Rob
www.hifi-remote.com
Please don't PM me with remote questions, post them in the forums so all the experts can help! |
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The Robman Site Owner
Joined: 01 Aug 2003 Posts: 21210 Location: Chicago, IL |
Posted: Wed Jun 27, 2018 10:16 am Post subject: |
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for those interested in the protocol itself, here's some info.
The frequency is about 38kHz.
Logical ONE is +0 -400
Logical ZERO is +400 -0
There are no leadin or leadout pairs and the signal does not repeat.
Each byte of data is preceded by a ZERO and followed by a ONE, making 10 bits per byte in total.
The signal is LSB, but the executor is MSB, which means it accepts data in an MSB format but transmits the signal in LSB format.
The first nibble of the first byte is always "9" and the second nibble is a zero-based count of data bytes (ie, 0=1 byte, 1=2 bytes, etc).
For the executor itself, I had to manually send the data one bit at a time and I created a loop to send the data one byte at a time. The executor calculates the checksum while it sends the data bytes.
To send the fixed data, the executor grabs the length from the first byte and sends the required number of fixed bytes, then it moves on to send the OBC and checksum bytes.
My testing found that the device was quite fussy about getting the frequency and burst timings exactly right. _________________ Rob
www.hifi-remote.com
Please don't PM me with remote questions, post them in the forums so all the experts can help! |
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jward
Joined: 02 May 2006 Posts: 16
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Posted: Wed Jun 27, 2018 11:00 am Post subject: |
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Thanks. I'll have to try this out. |
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The Robman Site Owner
Joined: 01 Aug 2003 Posts: 21210 Location: Chicago, IL |
Posted: Thu Jun 28, 2018 8:21 pm Post subject: |
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I just added a combo version to the zip _________________ Rob
www.hifi-remote.com
Please don't PM me with remote questions, post them in the forums so all the experts can help! |
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The Robman Site Owner
Joined: 01 Aug 2003 Posts: 21210 Location: Chicago, IL |
Posted: Tue Jul 17, 2018 12:21 pm Post subject: |
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Did anyone try this out yet? _________________ Rob
www.hifi-remote.com
Please don't PM me with remote questions, post them in the forums so all the experts can help! |
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The Robman Site Owner
Joined: 01 Aug 2003 Posts: 21210 Location: Chicago, IL |
Posted: Mon Sep 10, 2018 12:12 pm Post subject: |
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Nobody tried it? _________________ Rob
www.hifi-remote.com
Please don't PM me with remote questions, post them in the forums so all the experts can help! |
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