๐ ๏ธ MAKER GUIDEJun 11, 2026โขโฑ๏ธ 1 min readโข๐ณ๐ต Tested in Nepal
Portable UV Radiation Index & Skin Protection Monitor with GUVA-S12SD
Measure high-altitude Himalayan ultraviolet radiation intensity and calculate safe sun exposure with the GUVA-S12SD sensor and 0.91 inch OLED.
๐ ๏ธ BILL OF MATERIALS (BOM)
Required Hardware & Component Checklist
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Estimated Total (5/5 items):
NPRย 1,790
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NPRย 750
NPRย 450
NPRย 500
NPRย 40
NPRย 50
Portable UV Radiation Index & Skin Protection Monitor with GUVA-S12SD
Detect ambient UV index levels (0-11+) in mountain terrain using the GUVA-S12SD Solar UV Sensor Module and 0.91" OLED display.
Hardware Bill of Materials:
- Microcontroller: Arduino Nano V3.0 Solderless
- UV Sensor: UV Sensor Module GUVA-S12SD 240nm-370nm Solar Ultraviolet Detector
- Display: 0.91 inch OLED module blue OLED 128X32 GND-VCC-SCL-SDA
- Alarm & Power: Active Buzzer + 9V Battery
Circuit Pinout & Wiring Connections:
| Sensor / Module Pin | Arduino Nano Pin | Function / Description |
|---|---|---|
| GUVA-S12SD VCC / GND | 5V / GND | UV Photodiode Amplifier Power |
| GUVA-S12SD Analog OUT | Pin A0 | Analog Voltage (0.1V per UV Index) |
| 0.91" OLED SDA / SCL | Pin A4 / Pin A5 | I2C UV Index & Risk Category Screen |
| Active Buzzer (+) | Pin D4 | Extreme UV Hazard (>Index 8) Warning |
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