This is a very small (18mm * 6.5mm) sensor board. It contains a BH1730FVC ambient light sensor and a SHT30-DIS-B temperature and humidity sensor. It can easily be hooked up to an Arduino or any other microcontroller by I2C.

Because there was not yet an existing BH1730 arduino library, I've developed one so you can easily interact with the ambient light sensor! https://github.com/jancoow/BH1730-Library

There are no pull ups on the board, you need to provide those yourself.

Board specifications:

• Working voltage: 2.4V to 3.6V
• SHT30 address is 0x44
• BH1730 address is 0x29
• Hole diameter is 2.5mm
• Solder pads on the back to connect the wires

!Warning!

Due an error in those samples, the silkscreen does not match the correct pin-out. GND and 3.3v should be swapped, and SDA and SCL should be swapped as well. A disclaimer and picture of the correct pin-out will be added in the package as well. There will be no protection for reverse polarity.

Sensirion SHT30-DIS-B2.5KS

• Humidity and Temperature Sensor
• Fully calibrated, linearized, and temperature compensated digital output
• Wide supply voltage range, from 2.4 V to 5.5 V
• I2C Interface with communication speeds up to 1 MHz and two user selectable addresses
• Typical accuracy of  2 %RH and  0.3 °C
• Very fast start-up and measurement time

Semicon BH1730FVC-TR

• I2C bus Interface f/s Mode Support, Slave Address "0101001"
• 2 outputs with peak wavelengths of visible light and infrared light respectively.
• Illuminance to digital converter
• Low current by power down function
• 50Hz / 60Hz light noise reject function
• Light source dependency is small by the calculation using 2 outputs. (e.g. Incandescent lamp, Fluorescent lamp, Halogen lamp, White LED and Sun light)
• Built-in interrupt function
• Sensitivity adjustment function for compensation for illuminance decrease by optical window