Difference between revisions of "MeterBoard/16A"
From Hackstrich
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== Status == | == Status == | ||
| + | * 2014-11-10: Checklisted/finished board, CAMed, sent off to OSH Park for manufacturing. | ||
* 2014-11-09: Completed BOM and schematic, and completed board layout except for the checklist. Will checklist/CAM it tomorrow. | * 2014-11-09: Completed BOM and schematic, and completed board layout except for the checklist. Will checklist/CAM it tomorrow. | ||
* 2014-11-08: Started putting together initial design. | * 2014-11-08: Started putting together initial design. | ||
Revision as of 01:01, 11 November 2014
MeterBoard/16A is a module for the MeterBoard system that drives 16 analog meters.
Status
- 2014-11-10: Checklisted/finished board, CAMed, sent off to OSH Park for manufacturing.
- 2014-11-09: Completed BOM and schematic, and completed board layout except for the checklist. Will checklist/CAM it tomorrow.
- 2014-11-08: Started putting together initial design.
Specs
- SPI interface to MeterBoard system.
- 16 buffered analog outputs that can source 50mA at 2.5v each (configurable per-channel levels via resistors)
- 8-bit outputs resolution, so at 50mV full-scale each step is 190uV
- ~1/3 degree steps on a 90 degree regular meter
- ~1 degree steps on a 240 degree long-scale meter
- 8-bit outputs resolution, so at 50mV full-scale each step is 190uV
