This is the support page for UVB Power Meter (UVB Sensor Hat + M5StickC Set) sold at BOOTH.
It can measure ultraviolet B wave (UVB), which is necessary for reptile breeding, etc. It does not react to UVA.
Please refer to How to use the lawn-tech UVB Power Meter (UVB Sensor Hat + M5StickC Set).
| Measurement Wavelength | 220～320 nm (10 % of ) |
| Measurement Range | 0～1999 uW/cm^2 |
| Resolution | 1 uW/cm^2 |
| Accuracy | ±10% (This is the initial accuracy of the sensor being used.) |
| Display | 0.96" 80 x 160 TFT (using the display of M5StickC) |
| Functions | Data Hold, Auto Power Off, Zero Adjustment |
| Power Supply | Rechargeable (using the M5StickC's built-in battery) |
| Dimensions | 72 x 24 x 14 mm (Including M5StickC) |
| Included Items | UVB Sensor Hat, M5StickC, USB Cable (Type A - C) |
The block diagram of the UVB Power Meter (UVB Sensor Hat + M5StickC Set) is shown below.
The output (analog voltage output) of UVB sensor GUVB-T21GH is digitized by AD converter ADS1014 and read by M5StickC. The connection between ADS1014 and M5StickC is I2C.
UVB Sensor GUVB-T21GH Specification Sheet
AD Converter ADS1014 Product Information
The program for UVB measurement is available on GitHub. -> https://github.com/lawn-tech/uvbmeter
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