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Home made diseqc positioner
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<blockquote data-quote="ArloG" data-source="post: 1162606" data-attributes="member: 418555"><p>Sorry for the book. The concept seems easy enough. Even shipping an ASC-1 in the US is around $50 USD. Crazy.</p><p>Checking for shorted caps, open resistors, and either way with diodes. Easy. Comparators and line drivers. Okay. Datasheets for pinouts.</p><p>The values. Especially with SMD. Like zeners, caps. Nothing like pulling a lead like in the old days. Hot air time. And hopefully you have a donor board with a good, same component to get the value from. Melf diodes with red and blue and green bands could be anything. Same with caps.</p><p>The only plus I have with the ASC-1 is I was afforded with a prototype schematic with component values. Close, but no cigar.</p><p>On the final release board some MCU pins don't match. Comparator components and component arrangement is different.</p><p>There is a mosfet on the motor h-bridge that was supposed to be used to PWM the motor ramp-up and ramp-down speed. The software never used it. </p><p>The arduino interface. it really puzzles me. Serial in. Wait for a diseqc signal from the master (receiver) and wake up from sleep.</p><p>Read the packet. Parse only the go-to positional data. And perform a lookup from a table that can be then be constructed into a RS422 packet.</p><p>Send that packet serial out. The RC mover detects the packet coming in. Wakes up. And does its thing.</p><p>The RC programming manual states the go-to could be the stored position name. And if that's not present. Just the stored memory slot.</p><p></p><p>A nice thing of the ASC-1 is that there is a Windows interface that allows you to program satellite names in the stored slots. Set soft limits.</p><p>Read and write. For an arduino or like interface I'm sure some manual edits in the IDE would be needed. So, it (in the prototype) would require a bit of geekery.</p><p>I looked through the ASC-1 application installer code and found hints of the actual software that is used to write the program. And looking into the company that has it. Their specialty is software that performs user interface functions.</p></blockquote><p></p>
[QUOTE="ArloG, post: 1162606, member: 418555"] Sorry for the book. The concept seems easy enough. Even shipping an ASC-1 in the US is around $50 USD. Crazy. Checking for shorted caps, open resistors, and either way with diodes. Easy. Comparators and line drivers. Okay. Datasheets for pinouts. The values. Especially with SMD. Like zeners, caps. Nothing like pulling a lead like in the old days. Hot air time. And hopefully you have a donor board with a good, same component to get the value from. Melf diodes with red and blue and green bands could be anything. Same with caps. The only plus I have with the ASC-1 is I was afforded with a prototype schematic with component values. Close, but no cigar. On the final release board some MCU pins don't match. Comparator components and component arrangement is different. There is a mosfet on the motor h-bridge that was supposed to be used to PWM the motor ramp-up and ramp-down speed. The software never used it. The arduino interface. it really puzzles me. Serial in. Wait for a diseqc signal from the master (receiver) and wake up from sleep. Read the packet. Parse only the go-to positional data. And perform a lookup from a table that can be then be constructed into a RS422 packet. Send that packet serial out. The RC mover detects the packet coming in. Wakes up. And does its thing. The RC programming manual states the go-to could be the stored position name. And if that's not present. Just the stored memory slot. A nice thing of the ASC-1 is that there is a Windows interface that allows you to program satellite names in the stored slots. Set soft limits. Read and write. For an arduino or like interface I'm sure some manual edits in the IDE would be needed. So, it (in the prototype) would require a bit of geekery. I looked through the ASC-1 application installer code and found hints of the actual software that is used to write the program. And looking into the company that has it. Their specialty is software that performs user interface functions. [/QUOTE]
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Home made diseqc positioner
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