Difference between revisions of "MeterBoard/16A"
From Hackstrich
| Line 2: | Line 2: | ||
== Status == | == Status == | ||
| − | * 2014-11-09: Started putting together initial design. | + | * 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 == | == Specs == | ||
* SPI interface to [[MeterBoard]] system. | * SPI interface to [[MeterBoard]] system. | ||
| − | * 16 buffered analog outputs that can source 50mA each (configurable per-channel levels via resistors) | + | * 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 | ** 8-bit outputs resolution, so at 50mV full-scale each step is 190uV | ||
*** ~1/3 degree steps on a 90 degree regular meter | *** ~1/3 degree steps on a 90 degree regular meter | ||
Revision as of 01:52, 10 November 2014
MeterBoard/16A is a module for the MeterBoard system that drives 16 analog meters.
Status
- 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
