UPM

The UPM API is a high level sensor library for IoT devices using MRAA. See examples here. Back to index page.
SparkFun sensor images provided under CC BY-NC-SA-3.0.

VEML6070 Class

Module: veml6070

VEML6070 is an advanced ultraviolet (UV) light sensor with I2C protocol interface and designed by the CMOS process. It is easily operated via a simple I2C command. The active acknowledge (ACK) feature with threshold windows setting allows the UV sensor to send out a UVI alert message. Under a strong solar UVI condition, the smart ACK signal can be easily implemented by the software programming. VEML6070 incorporates a photodiode, amplifiers, and analog / digital circuits into a single chip. VEML6070 's adoption of FiltronTM UV technology provides the best spectral sensitivity to cover UV spectrum sensing. It has an excellent temperature compensation and a robust refresh rate setting that does not use an external RC low pass filter. VEML6070 has linear sensitivity to solar UV light and is easily adjusted by an external resistor. Software shutdown mode is provided, which reduces power consumption to be less than 1 uA. VEML6070 's operating voltage ranges from 2.7 V to 5.5 V.
veml6070.jpg

Methods

VEML6070

(
  • bus
)
Number

VEML6070 constructor

Parameters:

  • bus Number

    i2c bus to be used

Returns:

Number:

getUVIntensity

() Number

Function to get the UV value.

Returns:

Number:

int16_t UV value

setIntegrationTime

(
  • time
)

Function to allow the user to set the intergration time for the sensor. Integration time: Bit Setting | Description | RSet IT1 IT0 | | 300 k-ohms | 600 k-ohms 0 0 | 1/2T | 62.5 ms | 125 ms 0 1 | 1T | 125 ms | 250 ms 1 0 | 2T | 250 ms | 500 ms 1 1 | 4T | 500 ms | 1000 ms

Parameters:

  • time Veml6070_integration_time_t

    veml6070_integration_time_t