scholarly journals Automatic headlight controlling of vehicle using ambient light sensor based on phototransistor

2021 ◽  
Author(s):  
Kazi Muhammad Fahim Shahriar
Keyword(s):  
Light Intensity ◽  
Efficient Method ◽  
Pulse Width ◽  
Pulse Width Modulation ◽  
Ambient Light ◽  
Light Sensor

This paper proposes an efficient method to control the headlight intensity of the vehicle using ambient light sensor (ALS) based on phototransistor with the principle of pulse width modulation. The main responsibility of this automatic headlight control is to control the intensity of the headlight based on the ambient light. The intensity of the headlight will be low when the ambient light intensity is high and vice versa.

scholarly journals Measurement of spring constants of various spring-mass systems by using smartphones: a teaching proposal

2020 ◽  
pp. 1-10
Author(s):  
Mustafa EROL ◽  
Kadir Hocaoğlu ◽  
Şeyda Kaya
Keyword(s):  
Light Intensity ◽  
Relative Error ◽  
Ambient Light ◽  
Mass System ◽  
Harmonic Motion ◽  
Simple Harmonic Motion ◽  
System A ◽  
Light Sensor ◽  
Spring Constants ◽  
Theoretical Results

This study aims to develop a teaching proposal to measure spring constants of various spring-mass systems by means of the smartphones. Specifically, a single spring-mass system, a serial connected and a parallel connected spring systems are experi-mentally resolved, by using the ambient light sensor of the smartphones. The measurements are achieved by simply recording the light intensity, detected by the oscillating smartphone, as a function of time for the simple harmonic motion. Using the light intensity-time graphs, the average periods and eventually the spring constants are estimated and the outcomes are compared with the theoretical results. The overall outcomes of the work indicate some 3,3 % relative error for the serial connected springs and 10,8 % relative error for the parallel connected springs. The approach is important in the sense that the apparatus directly plots instantaneous momentum-time graphs and it creates an enjoyable and beneficial teaching atmosphere.

scholarly journals Car Robots of Line Followers and False Detections Using Microcontroller of BS2SX Basics Tamp

2017 ◽  
Vol 3 (1) ◽  
pp. 191
Author(s):  
Sujarwata Sujarwata
Keyword(s):  
Programming Language ◽  
Navigation System ◽  
Pulse Width ◽  
Pulse Width Modulation ◽  
Ultrasonic Sensor ◽  
Automation System ◽  
Ultrasonic Sensors ◽  
Light Sensor ◽  
Signal Input ◽  
Line Detector

<div style="text-align: justify;">This study aims to design a robot car that can follow the line and can avoid obstacles if it detects objects. The movement of the robot car is equipped with light sensor (LDR) and ultrasonic as its navigation system. Automation system navigation settings using BS2SX Basic Stamp microcontroller hardware, while the software with Pbasic programming language. The program is written on the Basic Stamp Editor already installed on the PC, then downloaded to EEPROM. Ultrasonic sensors are utilized as a detection of obstacles and light sensor sensors (LDR) as a tracked line detector. The robot will follow the designed line, if there are obstacles in front of it the robot will avoid and run back if the ultrasonic sensor does not detect obstacles in front of it. With the PWM signal input setting (Pulse Width Modulation) from the microcontroller, the robot car can walk straight, turn and will avoid when detecting obstacles. ©2017 JNSMR UIN Walisongo. All rights reserved</div>

scholarly journals Light intensity design as a fishing tool on liftnet, with pulse width modulation system based on microcontroller

2020 ◽  
Vol 1477 ◽  
pp. 052041
Author(s):  
Sumardi ◽  
Sugeng Hari Wisudo ◽  
Wazir Mawardi ◽  
Mulyono S Baskoro
Keyword(s):  
Light Intensity ◽  
Pulse Width ◽  
Pulse Width Modulation

The 1-Bit Instrument

2020 ◽  
Vol 1 (1) ◽  
pp. 44-74
Author(s):  
Blake Troise
Keyword(s):  
Pulse Width ◽  
Pulse Width Modulation ◽  
Interleaving Techniques ◽  
Sonic Environment

The 1-bit sonic environment (perhaps most famously musically employed on the ZX Spectrum) is defined by extreme limitation. Yet, belying these restrictions, there is a surprisingly expressive instrumental versatility. This article explores the theory behind the primary, idiosyncratically 1-bit techniques available to the composer-programmer, those that are essential when designing “instruments” in 1-bit environments. These techniques include pulse width modulation for timbral manipulation and means of generating virtual polyphony in software, such as the pin pulse and pulse interleaving techniques. These methodologies are considered in respect to their compositional implications and instrumental applications.

An Equivalent Circuit Model for Vertical Comb Drive MEMS Optical Scanner Controlled by Pulse Width Modulation

2012 ◽  
Vol 132 (1) ◽  
pp. 1-9 ◽  
Author(s):  
Satoshi Maruyama ◽  
Muneki Nakada ◽  
Makoto Mita ◽  
Takuya Takahashi ◽  
Hiroyuki Fujita ◽  
...  
Keyword(s):  
Equivalent Circuit ◽  
Pulse Width ◽  
Pulse Width Modulation ◽  
Equivalent Circuit Model ◽  
Circuit Model ◽  
Comb Drive ◽  
Optical Scanner

Integrated Ambient Light Sensor with an LTPS Noise-Robust Circuit and a-Si Photodiodes for AMLCDs

2010 ◽  
Vol E93-C (11) ◽  
pp. 1583-1589
Author(s):  
Fumirou MATSUKI ◽  
Kazuyuki HASHIMOTO ◽  
Keiichi SANO ◽  
Fu-Yuan HSUEH ◽  
Ramesh KAKKAD ◽  
...  
Keyword(s):  
Ambient Light ◽  
Light Sensor ◽  
Noise Robust

An LTPS Ambient Light Sensor System with Sensitivity Correction Methods in LCD

2019 ◽  
Vol E102.C (7) ◽  
pp. 558-564
Author(s):  
Takashi NAKAMURA ◽  
Masahiro TADA ◽  
Hiroyuki KIMURA
Keyword(s):  
Sensor System ◽  
Ambient Light ◽  
Light Sensor
Sign in / Sign up

Export Citation Format

Share Document