Bug #491
ADC ref voltage issue with range finders
| Status: | Worksforme | Start: | 05/01/2009 | |
|---|---|---|---|---|
| Priority: | Normal | Due date: | 10/08/2010 | |
| Assigned to: | Chris Mar | % Done: | 100% |
|
| Category: | Hardware | |||
| Target version: | Hardware | |||
| Votes: | 0 |
Description
we run at 3.3V, rangefinders at 5V...wtf botrics
History
Updated by Kevin Woo over 1 year ago
No idea. I would look up the sensors datasheet and see what they take and
then measure what they're actually getting.
Updated by John Sexton over 1 year ago
- Assigned to changed from Austin Buchan to Alex Zirbel
We need to investigate and see if this is still an issue.
Updated by Alex Zirbel over 1 year ago
- Due date set to 10/08/2010
- Assigned to changed from Alex Zirbel to Chris Mar
Need to look into this for the next meeting.
Updated by John Sexton over 1 year ago
- Status changed from Assigned to Worksforme
- % Done changed from 0 to 100
The data sheet for the rangefinders says that rangefinders are powered at 5V, but output at 3.3V. The processor is running on 3.3V, so we expect that the processor should be using the correct reference voltage for the 3.3V output of the rangefinders. According to the data sheets, we should be using the full analog range for the rangefinders.