John Graham-Cumming personal blog
Two ways to use an LED as a light sensor with Arduino
I needed to log when a light switched on and off during the night as part of debugging an oddly behaving movement sensor. To do that I built...
- Points
- 138
- HN comments
- 61
- Submissions
- 1
- Cited by
- 0 commenters
Hardware & ElectronicsSoftware Engineering2024
On Hacker News
| Submitted | Title on HN | Points | Comments |
|---|---|---|---|
| Jun 19, 2024 | Two ways to use an LED as a light sensor with Arduino by jgrahamc | 138 | 61 |
