The Meadow. maxim,max44009 (on i2c bus) This is the documentation for the latest (main) development branch of Zephyr. c files (open and config MAX44009. Releases I’m looking for a good lux sensor for outdoor to control my shutters when the sun is shining in the windows. You can read all kinds of data on the module MCU, MCU calculation of the unified direct output of the calculation of the practical data,. Library for the MAX44009 Ambient Light Sensor. This library allows you to send and receive MQTT messages. manual = 0 sensor. What we are trying to do is Read Light value from the MAX44009 sensor on the TWI interface. c","path":"max44009/src/main. Blok penguatan adaptif secara otomatis memilih kisaran lux yang benar untuk mengoptimalkan hitungan / lux. Based on light entering the unit, the MAX44009 is pre-programmed with a light threshold beyond which it triggers a micro to wake up, read the RTC and go back to sleep. The module has a low. c","contentType":"file"},{"name. The reason I am posting here, is because I have seen far more examples of interfacing a MAX44009 lux sensor using Arduino than I have seen any other uC and IDE, and so I'm hoping that someone here. 045 lux to 188,000 lux. Author: Rob Tillaart. Author: Rob Tillaart. 335 This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package . （NASDAQ： MXIM）推出嵌入式安全参考设计MAXREFDES143#，定位于解决工业物联网（IIoT）设备中与系统安全性相关的诸多问题，防止传感器数据伪造，保证从传感器到云端的整个数据链的安全性与完整性。Videos. Author: Dan. MicroPython driver for MAX44009 light sensor . (e. Expanding Specific Devices. PCA6408A PCF8575 MCP23008 TCA9554 Chirp! XD8574A FXAS21002 MA12070P HW-061 MCP23017. PubSubClient. 0. [Internet] [cited 2021 Nov 22]. Kích thước: 60 x 80mm. 045 lux to 188,000 lux. There will be an explanation of what an ambient light sensor is and what it does. 7µF capacitor C7. Devices can be de/-actived on runtime to solve possible address conflicts. I use Arduino Pro Mini as microcontroller. Compatibility. I connected the max44009 and CJMCU2080 sensors to the board. ID: groverotary Name: Rotary Angle Sensor Other Names: Rotary Potentiometer Category: ainput Manufacturer: seeed Connection: analog Kit: gsk Basic UPM module for the Grove rotary angle sensor (knob) on analog. Regards, MichaelExample using Micro:bit lowmem version, rename the driver to 'max44009. Cannot retrieve contributors at this time. Tip. A simple C library to initialize and read the ambient light measurement (in Lux) from the MAX44009 sensor. Author: Rob Tillaart. Re: How to use the max44009 middleware library? Level 4 RoBe_1502026. c files to your project. k. " GitHub is where people build software. 1, can be used as a simple MAX44009 or BME280 module, chip I2C communication. Compatibility. $11. h and MAX44009_platform. NET Meadow IoT application. PART TYPE MAXWINGDEMO1# Evaluation Kit COMPONENT MANUFACTURER PART NUMBER DESCRIPTION C1, C3, C4 TDK C1608X7R1E104K080AA 4. Notifications. 0. Normally Stocked. 6 mm : Length: 2 mm : Moisture Sensitive: Yes : Pd - Power Dissipation: The MAX44009 evaluation kit (EV kit) is a fully assembled and tested surface-mount PCB that evaluates the MAX44009 low-power ambient light sensor. Future Electronics. so. ; after flashing you can use the sensor with tasmota. MAX44009 giao tiếp Arduino Cảm biến cường độ ánh sáng MAX44009 Digital Light Sensor được sử dụng để đo cường độ ánh sáng của môi trường xung quanh với độ chính xác và độ ổn định cao, cảm biến trả ra giá trị cường độ ánh sáng Lux qua giao tiếp I2C, thích hợp với các ứng dụng trong nông nghiệp, nhà thông. 045 Lux ~ 188,000 Lux. Overview of the Arduino UNO Components. address 0x27 is used by multiple devices) Using command I2cDriver individual drivers can be. . AAIABE (9$/8$7,21. ; field_strength_x (Optional): The field strength in microtesla along the X-Axis. calculate watts/m2 3. com. measure intensity of light in lux. MAX44009 Datasheet by Maxim Integrated View All Related Products | Download PDF Datasheet EVALUATION KIT AVAILABLE maxim Integrated», WT RANGE For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim‘s website at 0. At less than 1µA operating current, it is the lowest power ambient light sensor in the industry and features an ultra-wide 22-bit dynamic range from 0. GY-49 MAX44009 Ambient Light Sensor Module for Arduino with 4P Pin Header Module 100% brand new and high quality The MAX44009 ambient light sensor features an I2C digital output that is ideal for a number of portable applications su as smartphones, notebooks, and industrial sensors. 045 lux to 188,000 lux. At less than 1µA operating current, it is the lowest power ambient light sensor in the industry and features an ultra-wide 22-bit dynamic range from 0. 0. Part #: MAX44009. The MAX44009 ambient light sensor features an I²C digital output that is ideal for a number of portable applications such as smartphones, notebooks, and industrial sensors. 6, 28-Apr-2022 4 Document Number: 84286 For technical questions, contact: sensorstechsupport@vishay. This website is Open Source, please help improve it by submitting a change on GitHub:MAX44009 Support (i2c) Please describe your use case for this integration and alternatives you've tried: Measure lux outside and therefor need a high range >100k for direct sun light. Select a category below to see filtering options and narrow down your search. Library for various I2C-Sensors with examples for Arduino - iLib/i2c_MAX44009. All options from :ref:`Sensor <config-sensor>`. max44009_init(&max44009_usr_set, max44009IntProc, NULL); Thanks, Anjana. SCA - pin37 SCL - pin38 GND - pin 80 3. The MAX44009 ambient light sensor features an I2C digital output that is ideal for a number of portable applications such as smartphones, notebooks, and industrial sensors. Only a solar cell can be used in direct sunlight. People took the documentation and figured out the conversion math here and here - if you’re interested in doing this from scratch, please take a look at. Library for MAX44009 I2C LUX sensor Arduino. h","path":"Inc/adc. {"payload":{"allShortcutsEnabled":false,"fileTree":{"devices/Dhtxx. It uses the I²C communication protocolModule Gy-39 Max44009+bme280 +mcu Temperature Humidity Atmospheric Pressure Sensor Serial Light Intensity Module , Find Complete Details about Module Gy-39 Max44009+bme280 +mcu Temperature Humidity Atmospheric Pressure Sensor Serial Light Intensity Module,Gy-39,Max44009+bme280 +mcu,Emperature Humidity Atmospheric. 2 options are available, either thru using the ListPassiveTarget either the AutoPoll functions. 9 * distribute, sublicense, and/or sell copies of the Software, and toAdafruit Industries, Unique & fun DIY electronics and kits Electret Microphone Amplifier - MAX4466 with Adjustable Gain : ID 1063 - Add an ear to your project with this well-designed electret microphone amplifier. MAX44009. ESP8266 / ESP32. Library for MAX44009 I2C LUX sensor Arduino. c","path":"max44009/src/main. MAX44007 - MAX44009 -- Digital Light SensorsMaxim Company introduced MAX44007 and MAX44009 models. Based on light entering the unit, the MAX44009 is pre-programmed with a light threshold beyond which it triggers a micro to wake up, read the RTC and go back to sleep. . 3V of XMC4400 The max44009 sensor can operate in two modes: low_power (default) and continuous: ; In low_power mode, the sensor measures lux intensity only once every 800ms regardless of integration time. I have now some cheap chineese zigbee lux sensors which are on batteries. rpi-examples. The OPT3001 was the most sensitive. Esp32/Devices/Dht10. Ambient Light Sensor. A tag already exists with the provided branch name. Datasheet: 2MbKb/20P. integration_time = 3 sensor. Guess what, you can even find discount vouchers, coupons and other money saving deals of max44009 on AliExpress. {"payload":{"allShortcutsEnabled":false,"fileTree":{"Inc":{"items":[{"name":"adc. Issues. 99, buy best GY-39 Serial MAX44009 Light Intensity BME280 Temperature And Humidity Atmospheric Pressure Sensor Module sale online store at wholesale price. h","path":"Inc/bh1750. > It differs from the MAX44000 in that it doesn't have proximity sensing and that > it requires far less current (1 micro-amp vs 5 micro-amps). import max44009 from machine import I2C, Pin i2c = I2C (scl=Pin (22), sda=Pin (21)) sensor = max44009. 65μA Temperature range: -40°C to +85°C Device address options : 1001 010x and 1001 011x PCB size: 1. 1. 6 V Industry s Lowest-Power Ambient Light Sensor - UTDFN-6. Sensors. 电子发烧友网电子产品使用说明书频道为您提供max44009中文资料，max44009环境光传感器提供ic数字输出，可理想用于智能手机、笔记本电脑、工业传感器等便携产品。器件工作电流小于1a，是业内功耗最低的环境光传感器，具有22位超宽动态范. When I view the SDA and SCL lines using an oscilloscope, they are always. The MAX44009 differs from other digital light sensors by its inclusion of an on-chip auto-ranging scheme. MAX44009: Description: Industry's Lowest-Power Ambient Light Sensor with ADC: Supplier part number: MAX44009EDT : Configure & Download; Rating & Comments (1) Tags (2) Alternate Versions . Library for the MAX44009 Ambient Light Sensor. 99 - $8; Any Raspberry PI you have lying around, like a Raspberry Zero or the fancy Raspberry Pi 4 Model B - or the tiny Pico - $4. Brand: Tebuyus. MAX44009 Series 3. 这可以通过多种方式完成，具体取决于应用程序中使用的屏幕模块。. 1500×556 216 KB. 7V to 3. At less than 1µA operating current, it is the . Naturally, we’ll need to integrate the new sensor somehow. Once I replaced every instance of MAX44009Sensor with MAX44009 in ESPHomeMax44009Sensor. Datasheet: 2MbKb/20P. c files (open and config MAX44009. {"payload":{"allShortcutsEnabled":false,"fileTree":{"Arduino/libraries/SmartThingsESP8266WiFi":{"items":[{"name":"SmartThingsESP8266WiFi. Make sure you type the exact word that matches the #include line. Library for i2c-sensors and some other specific functions (fast eFn, HDLC, SpektrumSerial). It is easy to port this library to any platform. 045 lux to 188,000 lux. The EV kit provides an on-board I²C/SMBus interface and is connected to the comput The MAX44009 ambient light sensor features an I2C digital output that is ideal for a number of portable applications such as smartphones, notebooks, and industrial sensors. 3VDC) Cường độ ánh sáng đo được: 0. Español $ USD United States. I'm having troubles trying to connect my light sensor (MAX44009) with I2C. 0 id(my_sensor). During the day everything is ok and I can go as low as 0. 045 Lux to 188,000 Lux VCC: 1. The UPM API is a high level sensor library for IoT devices using MRAA. ESP32 and basic TEA5767 example. KIT EVAL FOR MAX44009. and tested surface-mount PCB that evaluates the . I HAVE problem . MAX44009 giao tiếp Arduino Cảm biến cường độ ánh sáng MAX44009 Digital Light Sensor được sử dụng để đo cường độ ánh sáng của môi trường xung quanh với độ chính xác và độ ổn định cao, cảm biến trả ra giá trị cường độ ánh sáng Lux qua giao tiếp I2C, thích hợp với các ứng dụng trong nông nghiệp, nhà thông. 0 Cart; 0 WishlistDesigned on the RF52810, nRF52811, nRF52832, nRF52833, nRF52840 wireless radio modules. after flashing you can use the sensor with tasmota. But now it is ready for use in: AVR (ATmega32) ESP32 (esp-idf) How To Use. plz. AAIABE (9$/8$7,21. ; All other options from :ref:`Sensor <config-sensor>`. ; humidity (Required): The information for the. 6 V Industry s Lowest-Power Ambient Light Sensor - UTDFN-6. The compile errors disappeared But . // Within lambda, push a value of 42. 65µA Nhiệt độ: -40°C ~ +85°CKit Content: - Motherboard - TSL2561CS and TSL2561T daughterboard - Software - USB cable. Overview: MAX44009 (Ambient Light Sensor) เป็นเซ็นเซอร์วัดความเข้มแสงแบบ I2C ซึ่งใช้พลังงานต่ำมาก Ultra-Low Power กันเลยทีเดียว โดยทางผู้ผลิตเขาบอกว่าใช้พลังงานน้อยกว่า 1μA และ. Operational Amplifier, 2 Func, 10000uV Offset. But when we want to read data back, we have a problem: 3. The company was founded in 1983 and is headquartered in San Jose, California. I2C Address List. It supports the latest MQTT 3. 1. 3. The MAX44009 and its features and benefits will be discussed and typical applications will be reviewed. 3218. 045. UPM. MAX44009: Ambient Light Sensor with ADC, I2C/TwoWire addresses: 0x4b, 0x4a Overview: MAX44009 (Ambient Light Sensor) เป็นเซ็นเซอร์วัดความเข้มแสงแบบ I2C ซึ่งใช้พลังงานต่ำมาก Ultra-Low Power กันเลยทีเดียว โดยทางผู้ผลิตเขาบอกว่าใช้พลังงานน้อยกว่า 1μA และ. MAX44009 Datasheet. At less than 1µA operating current, it is the lowest power ambient light sensor in the industry and features an ultra-wide 22-bit dynamic range from 0. c","contentType":"file"},{"name":"main. Skip to content Toggle navigation. MAX44009 is a low-power ambient light sensor with an I2C digital output that can be used for various applications such as smartphones, notebooks, and industrial sensors. measure lux from 0 to 188000 lux 2. BH1750, MAX44009 and TEMT6000 light sensors STM32 libraries - GitHub - lamik/Light_Sensors_STM32: BH1750, MAX44009 and TEMT6000 light sensors STM32 libraries Hi Tim. The MAX44009 ambient light sensor is an I2C sensor, that has a 22 bit dynamic range from 0. It uses the I 2 C communication protocol to allow for a fast, simple method of interfacing to a microcontroller. Figure 4‑2: Map of Slave address MAX44009 [7, p. AdaFruit Fritzing Library. 0 2. Pricing and Availability on. I changed the. PCA6408A PCF8575 MCP23008 TCA9554 Chirp! XD8574A FXAS21002 MA12070P HW-061 MCP23017. Hi, Tasmota does not support GY-49, but already supports APDS9960 and BH1770. 045 lux to 188,000 lux. . Shop Amazon for ACEIRMC MAX44009 BME280 MCU Light Intensity Temperature Humidity Atmospheric Pressure 4 in One Integrated Sensor Module GY-39 MCU IIC Serial IIC Bus 3-5V for Weather Station and find millions of. Sensors. Author: Dan Tudose. GY-49. Max44009. com. 2. The MAX44009 and MAX44007 digital ambient light sensors from Analog Devices are ideal for display brightness control of portable applications such as smartphones, tablets, and notebooks. The temperature, humidity and pressure sensor BME280, temperature and pressure sensor BMP280, temperature and humidity sensor SHTC3, light sensor MAX44009, air quality sensor SGP40 is used The device is powered by CR2477 battery. Light meter MAX44009, Microphone AKU340 OPERATING CONDITIONS Operating temperature range -20 ºC. But I’m looking for a sensor that I can control with an ESP8266/ESP32 board. This allows for a low cost, small scale, sensor which is able to aproximate the energy which is hitting the earth (in. Maintainer: Rob Tillaart. 4g无线收发模块关联函数VEML7700 Vishay Semiconductors Rev. 1 - fixed initialization bug - fixed lux reading mode. 045 lux to 188,000 lux. Thông Số Kỹ Thuật: Range: Wide 0. with Creative Commons CC-BY-SA. This project develops a real-time sunshine intensity observation system using the Internet of Things (IoT), allowing data to be easily accessed from any location. 99; Moisture: Any resistive humidity sensor - $4. At less than 1μA operating current, it is the lowest power ambient light sensor in the industry and features an ultra-wide 22-bit dynamic range from 0. The register > mapping and feature set between the two are different enough to require a newMạch cảm biến ánh sáng MAX44009 gồm hệ thống các linh kiện hỗ trợ đo sự thay đổi về cường độ ánh sáng của môi trường xung quanh. The TSL2561 is a light-to-digital converter that transforms light intensity to a digital signal output capable of direct I2C interface. 04lux during evening. no matching function for call to 'MAX44009::MAX44009(int)' I HAVE problem . At less than 1µA operating current, it is the lowest power ambient light sensor in the industry and features an ultra-wide 22-bit dynamic range from 0. Iot. {"payload":{"allShortcutsEnabled":false,"fileTree":{"libraries/Max44009":{"items":[{"name":". MAX44009 ( i2c ) sensor. MAX44009. c files (open and config MAX44009. Manufacturer: Maxim Integrated Products. 6V. MAX44009_swigregister = _pyupm_max44009. Library for the MAX44009 Ambient Light Sensor IC, used in the popular CJMCU Breakout boards. Compatibility. 99 $ 12. MAX44009-GY-49-Sensor-in-Tasmota ; put the file in your tasmota directory ; in user_config. Octopart is the world’s source for Analog Devices MAX44009EDT+T availability, pricing, and technical specs and other electronic parts Max44009. Spesifikasi sensor max44009: - Range pencahayaan 0. I'm having trouble trying to connect my light sensor (MAX44009) with I2C. 045勒克斯超宽22位的动态范围188,000勒克斯。On the hardware settings page you can enable "RPIEasy autostart at boot" option with a simple checkbox then pressing Submit button. 7mm Communication method: MCU_IIC/MCU_ serial port/sensor chip serial portThe MAX44009 ambient light sensor features an I²C digital output that is ideal for a number of portable applications such as smartphones, notebooks, and industrial sensors. MAX 44009 dibuat oleh Maxim Integrated. 045 lux to 188,000 lux. 7V to 3. Sensor merupakan suatu device atau perangkat elektronik yang digunakan untuk mengukur suatu besaran atau satuan tertentu. maxim integrated. . Arduino / libraries / Max44009 / examples / max44009_test01 / max44009_test01. . Filename Release Date File Size; MAX44009_library-1. Dalam pengoprasiannya, sensor dibantu oleh suatu alat kontrol,. 1. The MAX44009 ambient light sensor features an I2C digital output Low-light operation allows easy operation in dark-glass applications. Find and fix vulnerabilities. Library for the MAX44009 Ambient Light Sensor IC, used in the popular CJMCU Breakout boards. 045 lux to 188,000 lux. In addition to this, the integrated nature of this solution enables it to be placed on a flex cable, and set in a desired location away from the main circuit board. Điều này thực sự hữu ích khi bạn muốn có nhiều hơn. 045 lux to 188,000 lux. 6V. You can use this to identify stocks on the move. Optical Sensors Ambient Light Sensors RGB Proximity Senso. Sensors. 7V to 3. Maxim Integrated Products is a publicly traded company that designs, develops, and sells a wide range of high-performance analog and mixed-signal integrated circuits (ICs). . md","path":"README. 99. publish_state(42. I'm having trouble trying to connect my light sensor (MAX44009) with I2C. 89 KiB: Created by @njh. A tag already exists with the provided branch name. This fully assembled and tested board comes with a 20-20KHz electret microphone soldered on. I recently tried to program, using the free download version of MikroC for dsPIC IDE, a MAX44009 sensor to interface with PIC24FJ64GB002 microcontroller. I've connected the sensor according to this table. 3 - pin 3. Login / Register; Search here Search . 6V doesn't seem to be good enough to. Salah satu sensor yang bisa mengukur intensitas cahaya adalah MAX 44009, sebuah sensor berukuran kecil namun memiliki kemampuan yang istimewa. MAX44009 I2C LUX sensor. max44009业内功耗最低的环境光传感器-max44009环境光传感器的特点是通过i ² c数字输出，为便携式应用，如智能手机，笔记本电脑和工业传感器相当理想。在工作电流小于1μa，它是在同行业中最低的电力环境光传感器和功能的0. At less than 1µA operating current, it is the lowest power ambient light sensor in the industry and features an ultra-wide 22-bit dynamic range from 0. 3 General Features{"payload":{"allShortcutsEnabled":false,"fileTree":{"Arduino/libraries/ST_Anything":{"items":[{"name":"Constants. Hasil. Amazon. Maxim Integrated Products serves customers in a variety of markets, including communications. It is optional to use MAX44009_platform. I am using the cybt-213043-mesh board and there are no examples I can find that use it. Every command used without a parameter (payload) returns the current setting. To act as a card reader, the PN532 has to be in listening mode. This native component has NOT been submitted to ESPHome for merging as it is incomplete. Sensors. . The MAX44009 ambient light sensor features an I²C digital output that is ideal for a number of portable applications such as smartphones, notebooks, and. can be powered directly from the universal serial bus (USB) or from a single-supply voltage of 1. 51. Module Cảm Biến Ánh Sáng MAX44009. {"payload":{"allShortcutsEnabled":false,"fileTree":{"sonoff":{"items":[{"name":"language","path":"sonoff/language","contentType":"directory"},{"name":"Parsing. 6V. 045NuGetInstall-Package nanoFramework. 0); Check our new training course. ReleasesI’m looking for a good lux sensor for outdoor to control my shutters when the sun is shining in the windows. Library for MAX44009 I2C LUX sensor Arduino. Manufacturer: Maxim Integrated Products. 45USD 1 : 1 Costs in this table, obtained in 2022, could change over time. Since SDA & SCL are open drain, this would work fine as far as we're only driving MAX44009's input. 6. 045 lux to 188,000 lux. #Grand Valley State University Winter 2014. Released under CC Attribution Share-Alike. Order today, ships today. MAX44009 Ambient Light Sensor. This scheme allows the IC to make 22-bit dynamic range measurements automatically, improving the code efficiency without need for the microcontroller to reconfigure registers. Shop max44009 on AliExpress: If want to save a lot of money while still being able to pay for max44009, there are plenty of ways to save money, such as deal hunting. 045 lux to 188,000 lux. 4 Results. SCA - pin37 SCL - pin38 GND - pin 80 3. Arduino library for the MAX44009 luxmeter chip used in the popular CJMCU breakout boards. 0 - added support for Wire library ; rev. 3 participants. 环境光传感器max44009关于2937. digital output that is ideal for a number of portable appli-cations such as smartphones, notebooks, and industrial . h and MAX44009. com THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. h. The max44009 sensor can operate in two modes: low_power (default. 6V. Creates a new instance of the MAX44009, MAX44009 working mode is default. Classes Max44009:The MAX44009 ambient light sensor features an I²C digital output that is ideal for a number of portable applications such as smartphones, notebooks, and industrial sensors. This utility was created using a. thanksView datasheets for MAX44009 Eval Kit Datasheet by Analog Devices Inc. 0) is work in progress to bring current PixelIt funtionality to the Ulanzi Pixel Clock. 如何MAX44009的ALS应用于室外灯具设计. 7V - 3. Peripherals. 摘要：本应用笔记主要讲述采用max44009环境光传感器控制便携式设备(譬如智能手机和平板电脑)背光亮度的应用。针对背光亮度调节，本文介绍了两种不同的控制方案。此外，本文还就如何获得更好的控制效果提供了相关建议，同时也提供了实现本文所述算法. MAX44009. 3 - pin 3. MAX44009 sensor driver. and also get a value. #This is a python 3. At less than 1µA operating current, it is the lowest power ambient light sensor in the industry and features an ultra-wide 22-bit dynamic range from 0. They do not include shipping, which could vary by country. Max44009 (GY-49) OPT3001 (CJMCU-3001) Scale Y in EV numbers. A client library for MQTT messaging. Sensors. The MAX44009 ambient light sensor features an I²C digital output that is ideal for a number of portable applications such as smartphones, notebooks, and industrial sensors. The MAX44009 ambient light sensor features an I2C digital output that is ideal for a number of portable applications such as smartphones, notebooks, and industrial sensors. 3 participants. c files to your project. 04lux问题 最近在arduino上使用到MAX44009环境光传感器，是因为MAX44009环境光传感器提供I2C数字输出，器件工作电流小于1μA，是业内功耗最低的环境光传感器，具有22位超宽动态范围(0. Commands can be issued using MQTT, web requests, webUI console and serial. Copy link Contributor. 0. The BME280 and MAX44009 are each addressable with their respective I2C addresses. Automate any workflow Packages. A Simple Implementation of LCD Brightness Control Using the MAX44009 Ambient-Light Sensor. Log in. Pricing and Availability on millions of electronic components from Digi-Key Electronics. It is optional to use MAX44009_platform. The Light Sensor MAX44009 is designed to detect spectral range in the same way as human eyes do. The MAX44009 and MAX44007 digital ambient light sensors from Analog Devices are ideal for display brightness control of portable applications such as smartphones, tablets, and notebooks. Liked.