HomeHomeSupportSupport  Updated: March 21, 2021  [日本語 / English]

lawn-tech UVB Power Meter (UVB Sensor Hat + M5StickC Set) Support Page

Introduction

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.

How to use

Please refer to How to use the lawn-tech UVB Power Meter (UVB Sensor Hat + M5StickC Set).

Specifications

Measurement Wavelength220~320 nm (10 % of )
Measurement Range0~1999 uW/cm^2
Resolution1 uW/cm^2
Accuracy±10% (This is the initial accuracy of the sensor being used.)
Display0.96" 80 x 160 TFT (using the display of M5StickC)
FunctionsData Hold, Auto Power Off, Zero Adjustment
Power SupplyRechargeable (using the M5StickC's built-in battery)
Dimensions72 x 24 x 14 mm (Including M5StickC)
Included ItemsUVB Sensor Hat, M5StickC, USB Cable (Type A - C)

Technical Information

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 HAT block diagram

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