Timeline for I have three absolute rotary encoders that can output analog sinusoidal voltages OR SSI signals. I need to send their signal to a single pin. How?
Current License: CC BY-SA 4.0
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| Jul 8 at 11:04 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Feb 9, 2023 at 14:57 | comment | added | sebasjhin | @Scott Seidman I'd say a good figure for position updates is 200Hz. | |
| Feb 8, 2023 at 3:48 | answer | added | Polynomial | timeline score: 1 | |
| Feb 8, 2023 at 2:03 | comment | added | Polynomial | What's the part number for the rotary encoders? That'll tell us a lot about the parameters you're working with. | |
| Feb 7, 2023 at 17:08 | comment | added | Scott Seidman | Personally, I might consider a separate decoder for each channel that sends digital data to a single unit | |
| Feb 7, 2023 at 17:06 | comment | added | Scott Seidman | How often do you need updates? Do you need samples at the same time for each encoder? | |
| Feb 7, 2023 at 16:56 | comment | added | jsotola | an analog multiplexer may work ... multiplex the two analog signals, plus a third DC voltage to act as a sync signal ... set the DC voltage outside of the encoder range | |
| Feb 7, 2023 at 16:37 | comment | added | Hearth | How do you plan on doing SPI with a single pin? Even with one-way communication and no chip select line you'd at least need data and clock to make it be any semblance of SPI. I'm less familiar with CAN but suspect a similar problem would limit you there. | |
| S Feb 7, 2023 at 16:04 | review | First questions | |||
| Feb 7, 2023 at 18:17 | |||||
| S Feb 7, 2023 at 16:04 | history | asked | sebasjhin | CC BY-SA 4.0 |