UV index sensor with RS485 interface
This is another sensor in weather-sensor series. It is based on silabs Si1133.
Schematic:
Si1133 Sensor schematic with RS485 interface
Posts tagged ‘sensor’
Affordable pluviometer part 2 – strain gauge measurements
Affordable precision pluviometer PART 1 (introduction and construction) is here.
Here are first analog measurements of the affordable precision pluviometer:
| mL | uV | uV/mL |
| 0 | 550 | |
| 10 | 568 | |
| 30 | 606 | 1.87 |
| 50 | 643 | 1.86 |
| 100 | 736 | 1.86 |
| 200 | 924 | 1.87 |
| 300 | 1109 | 1.86 |
| 400 | 1296 | 1.87 |
| 500 | 1483 | 1.87 |
| 600 | 1672 | 1.87 |
| 650 | 1762 | 1.86 |
| 700 | 1853 | 1.86 |
| 750 | 1949 | 1.87 |
The measurement setup was: measuring graduated cylinder (4) strain gauge sensor (3) from kitchen scale, power suuply (2) and digital multimeter (1):
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