https://github.com/neliogodoi/MicroPython-SI1145

Driver to digital sensor of UV Index/IR/Visible Light/Proximity
https://github.com/neliogodoi/MicroPython-SI1145

Last synced: 2 months ago
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Driver to digital sensor of UV Index/IR/Visible Light/Proximity

• Host: GitHub
• URL: https://github.com/neliogodoi/MicroPython-SI1145
• Owner: neliogodoi
• Created: 2018-02-03T22:59:21.000Z (over 6 years ago)
• Default Branch: master
• Last Pushed: 2020-04-03T18:16:25.000Z (about 4 years ago)
• Last Synced: 2024-01-28T08:11:27.021Z (5 months ago)
• Language: Python
• Homepage:
• Size: 22.5 KB
• Stars: 6
• Watchers: 2
• Forks: 2
• Open Issues: 1
• Metadata Files:
  • Readme: README.md

Lists

• awesome-micropython - MicroPython-SI1145 - SI1145 UV index, IR, visible light and proximity sensor. (Libraries / Sensors)
• awesome-mpython - MicroPython-SI1145 - SI1145 光线传感器(紫外光/可见光/红外光) (精选驱动库 / 传感器)

README

        
# MicroPython-SI1145

## SI1145: A digital sensor of UV Index/IR/Visible Light/Proximity

The SI1145 is a sensor from Silicon Laboratories with a calibrated light sensing algorithm that can calculate UV Index.

### DataSheet: 

https://www.silabs.com/documents/public/data-sheets/Si1145-46-47.pdf

### Features:

 - IR Sensor Spectrum: Wavelength: 550nm-1000nm (centered on 800)

 - Visible Light Sensor Spectrum: Wavelength: 400nm-800nm (centered on 530)

 - Voltage Supply: Power with 3-5VDC

 - Output Type: I2C address 0x60 (7-bit)

 - Operating Temperature: -40°C ~ 85°C

## Driver version for developers

The driver version for developers (si1145-dev.py) is slightly larger in size as it contains comments to help understanding

## Testing

Download one of the following codes for your device:

#### ESP8266

```python

# ESP8266 simple teste

import machine

import si1145

import time

i2c = machine.I2C(

    sda=machine.Pin(4),

    scl=machine.Pin(5))

sensor = si1145.SI1145(i2c=i2c)

for i in range(10):

    uv = sensor.read_uv

    ir = sensor.read_ir

    view = sensor.read_visible

    print(" UV: %f\n IR: %f\n Visible: %f" % (uv, ir, view))

    time.sleep(1)

```

#### ESP32

```python

# ESP32 simple teste

import machine

import si1145

import time

i2c = machine.I2C(

    sda=machine.Pin(21),

    scl=machine.Pin(22))

sensor = si1145.SI1145(i2c=i2c)

for i in range(10):

    uv = sensor.read_uv

    ir = sensor.read_ir

    view = sensor.read_visible

    print(" UV: %f\n IR: %f\n Visible: %f" % (uv, ir, view))

    time.sleep(1)

```

#### LoPy

```python

# LoPy simple teste

from machine import I2C

import si1145

import time

i2c = I2C(0, I2C.MASTER, baudrate=100000)

sensor = si1145.SI1145(i2c=i2c)

for i in range(10):

    uv = sensor.read_uv

    ir = sensor.read_ir

    view = sensor.read_visible

    print(" UV: %f\n IR: %f\n Visible: %f" % (uv, ir, view))

    time.sleep(1)

```

#### BBC Micro:bit

```python

# Micro:bit simple teste

from microbit import i2c

import si1145

import time

sensor = si1145.SI1145(i2c=i2c)

for i in range(10):

    uv = sensor.read_uv()

    ir = sensor.read_ir()

    view = sensor.read_visible()

    print(" UV: {}\n IR: {}\n Visible: {}".format(uv, ir, view))

    time.sleep(1)

```