scholarly journals DIGITAL THERMOMETER BY USING AT89C51 MICROCONTROLLER

2020 ◽  
pp. 261-265
Author(s):  
Rajdip Das ◽  
Soumen Khatua
Keyword(s):  
Temperature Sensor ◽  
Human Error ◽  
Digital Circuits ◽  
Serial Communication ◽  
The Other ◽  
Digital Converter ◽  
Analog To Digital ◽  
Digital Thermometer ◽  
Lcd Display ◽  
The World

Automation is nowadays a new trend of Electronics. This automation has been implemented by the help of microcontrollers. If a microcontroller is programmed efficiently then it is capable to work efficiently as human. This era of automation has reduced so much human efforts. In this century some changes has taken place in the field of technology. The most important of those is the use of digital circuits in everywhere. The world of digitization has made things easier than before or we can say it has reduced human error in most of the areas. In our research we have made a digital thermometer by using AT89C51 microcontroller. The other components we have used are LM35 temperature sensor, Analog to Digital converter IC (ADC0804), MAX-232 IC chip for serial communication with the microcontroller and LCD display to display the temperature. We hope that this research paper will be helpful to scientific improvement in the field of making Digital thermometers to a great extent. KEYWORDS—DigitalThermo,Microcontroller,Timer,Temperature Sensor.

scholarly journals Development of a functional model of the temperature meter

2021 ◽  
pp. 53-59
Author(s):  
Natalia Zaschepkina ◽  
Maxim Svyta
Keyword(s):  
Power Supply ◽  
Temperature Sensor ◽  
Supply Voltage ◽  
Functional Model ◽  
Measurement Range ◽  
Platinum Resistance ◽  
Analog To Digital Converter ◽  
Digital Converter ◽  
Analog To Digital ◽  
Operating Range

Thin-film platinum resistance thermometers of various designs and performance are widely used in various industries. The temperature measurement range of these sensors is from -200 °C to +600 °C. A functional model of a portable digital temperature meter in the range from -50 °C to +300 ℃ based on the L416 sensor type Pt100 is proposed. The optimal circuit solution for connecting the L416 sensor to the Winston measuring bridge was selected. The proposed circuit solution is suitable for power supply from autonomous DC sources, which allows for miniaturization of the device and contributes to energy efficiency. The amplification of the output voltage of the amplifier in the entire operating range of the analog-to-digital converter following the operating range of the temperature sensor has been performed, which allows obtaining the maximum resolution of the analog-to-digital conversion when measuring temperature. A functional model for converting the resistance of a temperature sensor into a digital code has been developed. The functional model shows that the source code of the analog-to-digital converter does not depend on the supply voltage of the circuit, thus realizing the stability of the function of converting the resistance of the sensor into the value of the code of the analog-to-digital converter. The sensor has a normalized characteristic of the dependence of resistance on temperature, so a precision resistance box MSR-60M has been used to calibrate the circuit of the temperature meter. With the help of the resistance box MSR-60M, it is possible to calibrate the circuit of the temperature meter with an uncertainty of 0.07 °C. Keywords: temperature meter; RTD; Pt100; Winston bridge; ratiometric power supply.

scholarly journals A Novel Communication System For Deaf And Dumb People using gesture

2020 ◽  
Vol 32 ◽  
pp. 02003
Author(s):  
Pritesh Ambavane ◽  
Rahul Karjavkar ◽  
Hemant Pathare ◽  
Shubham Relekar ◽  
Bhavana Alte ◽  
...  
Keyword(s):  
Sign Language ◽  
The Other ◽  
Hand Gesture ◽  
Language Recognition ◽  
Text To Speech ◽  
Sign Language Recognition ◽  
Digital Conversion ◽  
Analog To Digital ◽  
Analog To Digital Conversion ◽  
The World

Human Beings know each other and contact with themselves through thoughts and ideas.The best way to present our idea is through speech. Some people don’t have the power of speech; the only way they communicate with others is through sign language. Now a days technology has reduced the gap through systems which can be used to change the sign language used by these people to speech. Sign language recognition (SLR) and gesture-based control are two major applications used for hand gesture recognition technologies. On the other side the controller converts the sign language in to the text and speech which gets converted with the help of text to speech conversion and analog to digital conversion. A Dumb person throughout the world uses sign language for the communication.The best way to present our idea is through speech. Some people don’t have the power of speech; the only way they communicate with others is through sign language. Now a days technology has reduced the gap through systems which can be used to change the sign language used by these people to speech. Sign language recognition (SLR) and gesture-based control are two major applications used for hand gesture recognition technologies. On the other side the controller converts the sign language in to the text and speech which gets converted with the help of text to speech conversion and analog to digital conversion. A Dumb person throughout the world uses sign language for the communication.

Pembelajaran Microcontroller MCS-51 Dengan Metodologi Interaktif

2017 ◽  
Vol 8 (2) ◽  
pp. 61-66
Author(s):  
Tamaji ◽  
Arief Budijanto
Keyword(s):  
Learning Process ◽  
Stepper Motor ◽  
Digital Converter ◽  
Input Output ◽  
Display Module ◽  
Analog To Digital ◽  
Lcd Display ◽  
Motor Module ◽  
Switch Input ◽  
Evaluation Board

Evaluation Board Microcontroller 89S51 / 89S82 / 89S53 (PEM-51) is a tool used to support microcontroller subject learning with an interactive methodology. PEM-51 consists of input / output modules that are integrated in one PCB board. The modules consist of a switch input, keypad module, LED module, seven segment display module, LCD display module, ADC (Analog to Digital Converter) module, DAC (Digital to Analog Conver) module, Stepper motor module. The software used in this tool is C using the Keil µVision4 compiler. The interactive learning process can be done by making a simulation circuit using Proteus software before implementing it to a microcontroller. With PEM-51, it is expected to increase student competency in studying Microcontroller courses.

scholarly journals An Ultra Low Power CMOS Sigma Delta ADC Modulator for System-on-chip (SoC) Temperature Sensor for Aerospace Applications

2018 ◽  
Vol 7 (1) ◽  
pp. 12
Author(s):  
Deepak Prasad ◽  
Vijay Nath
Keyword(s):  
Low Power ◽  
Temperature Sensor ◽  
Operational Amplifier ◽  
System On Chip ◽  
Digital Converter ◽  
Sigma Delta ◽  
Analog To Digital ◽  
Aerospace Applications ◽  
On Chip ◽  
Sigma Delta Adc

In the current paper, an accurate with low power consumed sigma delta (ΣΔ) analog to digital converter has been designed for the aerospace applications. The sigma delta ADC has been designed in such a way that it works fine with consumption of low power and high accuracy in the system on chip (SoC) temperature sensor where the analog output from the temperature sensor unit will be the fed to the analog to digital converter. To check the robustness, different parameters with variation has been analyzed. The high gain operational amplifier plays a vital role in the circuits design. Hence, a 30 MHz operational amplifier has also been proposed whose unity gain bandwidth (UGB) has been observed of about 30 MHz, 51.1dB dc gain and slew rate (SR) of about 27.9 V/ μsec. For the proper operation of the circuit, a power supply of +1.3V to -1.3V is used. The proposed sigma delta ADC modulator is showing better results over previously designed modulator in terms of power consumption, error and performance. The design and simulation have been tested with the help of cadence analog design environment with UMC 90nm CMOS process technology.

scholarly journals Using Novel One-Bit ADC to Design n-Bit ADC

2019 ◽  
Vol 8 (11) ◽  
pp. 4190-4195
Keyword(s):  
Input Voltage ◽  
The Other ◽  
The Novel ◽  
Digital Converter ◽  
Analog To Digital ◽  
Main Design ◽  
Single Output ◽  
Analog Voltage ◽  
Design Style ◽  
Main Design Parameter

This work presents two novel styles for designing nbit analog to digital converter (ADC). Each of the proposed ADCs is built using novel one-bit cell. The novel cell produces single output bit as a response to an input voltage, in addition, it outputs another analog voltage. The generated analog voltage is used again as an input to the to generate one more bit, and new analog voltage, and so on. The proposed n-bit ADC is built using the novel one-bit cell in two different styles. One design style, by connecting n ADC cells together to construct n-bit ADC that produces parallel binary outputs. The other design style realizes the n-bit ADC using single ADC cell and outputs n-bit serially. In both ADC designs introduced in this work, modularity was the main design parameter. The two different n-bit ADCs have been simulated. The first n-bit ADC with parallel outputs produces clean outputs at 50MS/s, and the other ADC design shows clean serial bits at 5KS/s

Pembelajaran Microcontroller MCS-51 Dengan Metodologi Interaktif

2017 ◽  
Vol 8 (2) ◽  
pp. 61-66
Author(s):  
Tamaji Tamaji ◽  
Arief Budijanto
Keyword(s):  
Learning Process ◽  
Stepper Motor ◽  
Digital Converter ◽  
Input Output ◽  
Display Module ◽  
Analog To Digital ◽  
Lcd Display ◽  
Motor Module ◽  
Switch Input ◽  
Evaluation Board

Evaluation Board Microcontroller 89S51 / 89S82 / 89S53 (PEM-51) is a tool used to support microcontroller subject learning with an interactive methodology. PEM-51 consists of input / output modules that are integrated in one PCB board. The modules consist of a switch input, keypad module, LED module, seven segment display module, LCD display module, ADC (Analog to Digital Converter) module, DAC (Digital to Analog Conver) module, Stepper motor module. The software used in this tool is C using the Keil µVision4 compiler. The interactive learning process can be done by making a simulation circuit using Proteus software before implementing it to a microcontroller. With PEM-51, it is expected to increase student competency in studying Microcontroller courses.

Home Automation Using Bluetooth

2020 ◽  
pp. 675-678
Author(s):  
Mukesh Mahajan ◽  
Astha Dubey ◽  
Samruddhi Desai ◽  
Kaveri Netawate
Keyword(s):  
Temperature Sensor ◽  
Humidity Sensor ◽  
The Other ◽  
Automation System ◽  
Home Automation ◽  
Wireless Devices ◽  
Home Appliances ◽  
Home Automation System ◽  
Condition Systems

This paper reviews basically about Bluetooth based home automation system. It is controlled by PIC microcontroller. Home automation can be defined as the ability to perform tasks automatically and monitor or change status remotely. These include tasks such as turning off lights in the room, locking doors via smartphone, automate air condition systems and appliances which help in the kitchen. Now a days several wireless devices are available such as Bluetooth, Zigbee and GSM. Since Bluetooth is low in cost than the other two and hence is used more. In this paper we have described the methods of automating different home appliances using Bluetooth and pic microcontroller. Different sensors are involved in this system to advance and make it smarter. Sensors such as temperature sensor, liquid sensors, humidity sensor etc. can be used.

Indonesian Literature’s Position in World Literature

TEKNOSASTIK ◽  
2018 ◽  
Vol 14 (2) ◽  
pp. 1
Author(s):  
Dina Amelia
Keyword(s):  
World Literature ◽  
The Other ◽  
National Literature ◽  
Western World ◽  
The World ◽  
The One ◽  
The Voice

There are two most inevitable issues on national literature, in this case Indonesian literature. First is the translation and the second is the standard of world literature. Can one speak for the other as a representative? Why is this representation matter? Does translation embody the voice of the represented? Without translation Indonesian literature cannot gain its recognition in world literature, yet, translation conveys the voice of other. In the case of production, publication, or distribution of Indonesian Literature to the world, translation works can be very beneficial. The position of Indonesian literature is as a part of world literature. The concept that the Western world should be the one who represent the subaltern can be overcome as long as the subaltern performs as the active speaker. If the subaltern remains silent then it means it allows the “representation” by the Western.

Experiment role in the world music (based on the «The Road» album of the Ukrainian «Dakha Brakha» band)

2018 ◽  
pp. 215-227
Author(s):  
Iia Fedorova
Keyword(s):  
Folk Music ◽  
World Music ◽  
The Other ◽  
Modern Music ◽  
Musical Practice ◽  
The Road ◽  
Music Practice ◽  
The World ◽  
Binary Oppositions ◽  
Musical Practices

The main objective of this study is the substantiation of experiment as one of the key features of the world music in Ukraine. Based on the creative works of the brightest world music representatives in Ukraine, «Dakha Brakha» band, the experiment is regarded as a kind of creative setting. Methodology and scientific approaches. The methodology was based on the music practice theory by T. Cherednychenko. The author distinguishes four binary oppositions, which can describe the musical practice. According to one of these oppositions («observance of the canon or violation of the canon»), the musical practices, to which the Ukrainian musicology usually classifies the world music («folk music» and «minstrel music»), are compared with the creative work of «Dakha Brakha» band. Study findings. A lack of the setting to experiment in the musical practices of the «folk music» and «minstrel music» separates the world music musical practice from them. Therefore, the world music is a separate type of musical practice in which the experiment is crucial. The study analyzed several scientific articles of Ukrainian musicologists on the world music; examined the history of the Ukrainian «Dakha Brakha» band; presented a list of the folk songs used in the fifth album «The Road» by «Dakha Brakha» band; and showed the degree of the source transformation by musicians based on the example of the «Monk» song. The study findings can be used to form a comprehensive understanding of the world music musical practice. The further studies may be related to clarification of the other parameters of the world music musical practice, and to determination of the experiment role in creative works of the other world music representatives, both Ukrainian and foreign. The practical study value is the ability to use its key provisions in the course of modern music in higher artistic schools of Ukraine. Originality / value. So far, the Ukrainian musicology did not consider the experiment role as the key one in the world music.

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