Adafruit TSL2561

Github Repo	C Header	C source	JS source
mongoose-os-libs/arduino-adafruit-tsl2561	TSL2561.h		api_arduino_tsl2561.js

Arduino Adafruit TSL2561 library for Mongoose OS

This is a port of the Adafruit Arduino driver for the TSL2561 sensor ported to run on the Mongoose OS ecosystem.

Usage is extremely simple....

in mos.yml, add to libs: section,

- origin: https://github.com/mongoose-os-libs/arduino-adafruit-tsl2561

in your init.js, add something like the following,

load('api_arduino_tsl2561.js');

and

//Initialize Adafruit_TSL2561 library
let tsl = Adafruit_TSL2561.create();
print('Adafruit_TSL2561.TSL2561_GAIN_16X -> ',Adafruit_TSL2561.TSL2561_GAIN_16X);
tsl.setGain(Adafruit_TSL2561.TSL2561_GAIN_16X);
tsl.setIntegrationTime(Adafruit_TSL2561.TSL2561_INTEGRATIONTIME_402MS);
tsl.begin();

let tslGetData = function() {
    let vis = tsl.getVisible();
    let ir = tsl.getInfrared();
    let lux = tsl.calculateLux(vis, ir);
    print('TSL2561:  Vis: ', vis ,', IR: ', ir, ', Lux: ',lux);
};

let tslTimer = Timer.set(10000 /* milliseconds */, true /* repeat */, tslGetData, null);

to use the library.

Enjoy!

---

! @file tsl2561.h @author K. Townsend (microBuilder.eu)

@section LICENSE

Software License Agreement (BSD License)

Copyright (c) 2010, microBuilder SARL
All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. Neither the name of the copyright holders nor the
names of its contributors may be used to endorse or promote products
derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

---

JS API

---

getLuminosity

getLuminosity( p )

** Adafruit_TSL2561.TSL2561_VISIBLE **

get visible luminosity: channel 0 - channel 1

myTSL.begin

myTSL.begin()

Initialize sensor and make it ready for use. Return value: 1 if sensor is ready, 0 otherwise.

myTSL.getLuminosity

myTSL.getLuminosity( lumo )

Return the current luminosity for either channel or both. Set lumo parameter to:

• Adafruit_TSL2561.TSL2561_INFRARED for channel 1 (infrared) contribution to luminosity
• Adafruit_TSL2561.TSL2561_FULLSPECTRUM for channel 1 and channel 0 combined as luminosity
• Adafruit_TSL2561.TSL2561_VISIBLE for channel 0 (visible) contribution to luminosity Return value: current humidity value as a double.

myTSL.getVisible

myTSL.getVisible( )

Convenience function equivalent to calling myTSL.getLuminosity( Adafruit_TSL2561.TSL2561_VISIBLE ).

myTSL.getInfrared

myTSL.getInfrared( )

Convenience function equivalent to calling myTSL.getLuminosity( Adafruit_TSL2561.TSL2561_INFRARED ).

myTSL.getFullSpectrum

myTSL.getFullSpectrum( )

Convenience function equivalent to calling myTSL.getLuminosity( Adafruit_TSL2561.TSL2561_FULLSPECTRUM ). Return value:

myTSL.getFullLuminosity

myTSL.getFullLuminosity( )

Return value: 32-bit unsigned int with the 16 high-bits containing channel 1 (infrared) and the 16 low-bits containing channel 0 (visible).

myTSL.setIntegrationTime

myTSL.setIntegrationTime( t )

Set the sampling (integration) time of the sensor using the value of parameter t. Allowed values for t and their meanings are:

• Adafruit_TSL2561.TSL2561_INTEGRATIONTIME_13MS 13.7ms - shortest integration time (bright light)
• Adafruit_TSL2561.TSL2561_INTEGRATIONTIME_101MS 101ms - medium integration time (medium light)
• Adafruit_TSL2561.TSL2561_INTEGRATIONTIME_402MS 402ms - longest integration time (dim light)

myTSL.setGain

myTSL.setGain( g )

Set the gain of the sensor using the value of parameter g. Allowed values for g and their meanings are:

• Adafruit_TSL2561.TSL2561_GAIN_0X No gain - set no gain (for bright situations)
• Adafruit_TSL2561.TSL2561_GAIN_16X 16x gain - set 16x gain (for dim situations)

myTSL.calculateLux

myTSL.calculateLux( ch0, ch1 )

Uses the formula supplied in the sensor datasheet to calculate Lux for the supplied values of channel 0 (ch0) and channel 1 (ch1). Return value: the calculated Lux

Adafruit_TSL2561.create

Adafruit_TSL2561.create( addr )

Create an Adafruit_TSL2561 instance on I2C bus. Supported i2c addresses are:

• Adafruit_TSL2561.TSL2561_ADDR_LOW (0x29)
• Adafruit_TSL2561.TSL2561_ADDR_FLOAT (0x39 - default if addr not specified).
• Adafruit_TSL2561.TSL2561_ADDR_HIGH (0x49) Return value: an object representing the TSL2561 sensor with the methods defined in _proto: {...} (above).

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