MicroPython-VEML6075

Driver base for the VEML6075 UV Light Sensor

The VEML6075 senses UVA and UVB light and incorporates photodiode, amplifiers, and analog/digital circuits into a single chip using a CMOS process. When the UV sensor is applied, it is able to detect UVA and UVB intensity to provide a measure of the signal strength as well as allowing for UVI measurement.

DataSheet:

https://www.digchip.com/datasheets/parts/datasheet/3951/VEML6075-pdf.php (in 09/21/2019) or file 'VEML6075_datasheet.pdf'

Key features:

• Package type: surface mount
• Dimensions (L x W x H in mm): 2.0 x 1.25 x 1.0
• Integrated modules: ultraviolet sensor (UV), and signal conditioning IC
• Converts solar UV light intensity to digital data
• Excellent UVA and UVB sensitivity
• Reliable performance of UV radiation measurement under long time solar UV exposure
• 16-bit resolution per channel
• UVA and UVB individual channel solution
• Low power consumption
• Temperature compensation: -40 °C to +85 °C
• Output type: I2C bus
• Operation voltage: 1.7V to 3.6V

Files:

'veml6075.py' Version for Developers of driver for geral devices compatibles of MicroPython - ESP8266, ESP32 and LoPy.

'veml6075_lowmem.py': Version Low Memory of driver for geral devices compatibles of MicroPython - No Documenteded

Tests:

ESP8266

import veml6075
from machine import I2C, Pin

i2c = I2C(sda=Pin(4), scl=Pin(5))
sensor = veml6075.VEML6075(i2c=i2c)

sensor.uv_index

ESP32

import  veml6075
from machine import I2C, Pin

i2c = I2C(sda=Pin(21), scl=Pin(22))
sensor = veml6075.VEML6075(i2c=i2c)

sensor.uv_index

LoPy

import veml6075
from machine import I2C

i2c = I2C(0, I2C.MASTER, baudrate=100000)
sensor = veml6075.VEML6075(i2c=i2c)

sensor.uv_index

Driver Benchmark for Memory Consumed*:

MicroPython v1.11-8-g48dcbbe60 on 2019-05-29; ESP module with ESP8266

	ESP8266	ESP32	LoPy
Total Memory device (Kb)	64	520	200
MicroPython Consumes (kb)	31,75	388,25
Memory Free (Kb)	32.25	111.75
Driver Uses Memory (Kb)	2.75	3.52	-