Temperature sensor using 8086 microprocessor

Temperature sensor using 8086 microprocessor. The repository is being created in a way contributors solutions takes the most place and the basics folder is the starting point to the learning 8086. January 11, 2022. The simulations have been done in Proteus Simulation Software. To simulate the increase/decrease in the current temperature in Proteus, you have to adjust the value in the sensor by yourself via the '↑' or '↓' arrow in the sensor. 2. The 8086 is a 16-bit microprocessor with a 16-bit internal and external data bus. Electrical Engineering questions and answers. System specifications: Use an 8255 PPI to control the Microprocessor-drives technology is the brain of the computer. The traffic light control program can be written by the flowing steps: Step 1 Initialize all ports of the 8255 as output ports. The 8255A is a general purpose programmable I/O device. The AC will be switched ON if the room temperature is above 52-degree Fahrenheit and AC will be OFF otherwise. A relay is also provided which is set to be active when the humidity crosses a Microcontroller Temperature Controlled System. As observed from previous work, high end microPIC (PIC18 series) although it has many functionality and large program memory size, it is hard to control all sensors, fans, thermistor using 1 Dec 23, 2013 · The document describes a traffic light control system using an 8085 microprocessor. It has a 16-line data bus. We would like to show you a description here but the site won’t allow us. They are used in all type of computers ranging from microcomputers to supercomputers. 13. Temperature Sensor Project Using 8085 Microprocessor 1 Temperature Sensor Project Using 8085 Microprocessor When somebody should go to the ebook stores, search establishment by shop, shelf by shelf, it is really problematic. 1 of 9. e. Slideshow view. 2- Multiply And Take Half of The Given Binary Input By Using 8255. 14 likes • 25,966 views. Robotic Guidance Using Line Following Method: The aim of this project is to establish a robotic control system to follow a line on the ground. Jan 1, 2015 · Temperature sensors used in microprocessors are usually thermal diodes. The control word to make all ports as output ports for Mode 0 operation is 80H. Where And an 8086 microprocessor is able to perform these operations with 16-bit data in one cycle. Temperature is usually measured in “Centigrade” or “Faraheite”. Algorithms and state diagrams are presented to Apr 17, 2013 · 2013-04-17. 4 Temperature Sensor Project Using 8085 Microprocessor 2023-05-26 implementation of digital electronics are essential to understanding the design and working of consumer/industrial electronics, communications, embedded systems, computers, security and military equipment. Stepper motor control using 8051 Microcontroller 10. It is available in 40 pin DIP chip. The sensors are made with help of LDR which are Light Dependent Resistors, whose Resistance is inversely proportional to the Light falling on it. 9423 Jan 19, 2018 · Jan 19, 2018 • Download as PPTX, PDF •. VCRs, televisions and gaming platforms also contain microprocessors for executing complex instructions and tasks. 4 days ago · In this project, a temperature data logger using microcontroller is designed. If the desired value is higher than the measured value, the fan will not come up. md file with explanations and images to the problem you solve. If the temperature >= 500ºC, a red led will turn on. The ATmega8 has inbuilt analog to digital converter with six multiplexed channels of 10-bit resolution. The architecture of the 8086 microprocessor is based on a complex instruction set computer (CISC) architecture, which means that Question: Use Proteus circuit simulator to design an Intel 8086 microprocessor-based system that periodically reads from a temperature sensor, and activates a fan (DC or AC motor) when temperature reaches 50 degrees. So this heat should be reduced in order to protect the device. Key features An ample number of diagrams So if Lm35 outputs 100 mills volts the equivalent temperature in centigrade/Celsius will be 100/10 = 10 centigrade/Celsius. Temperature Sensor Project Using 8085 Microprocessor Recognizing the showing off ways to acquire this ebook Temperature Sensor Project Using 8085 Microprocessor is additionally useful. A cell phone or mobile device executes game instructions by way of the microprocessor. The temperature to be displayed using two digits of 7-Segments Question: Using Proteus what is the Schematic design using Proteus simulation. In this paper, the operation of the system present step by step. acquire the Temperature Sensor Project Using 8085 Microprocessor associate that we offer here and Nov 11, 2023 · To use it, open your web browser and head to the Speccy site. It uses a 5V DC supply for its operation. The first 16-bit processor had a 16-bit ALU, 16-bit Sep 17, 2013 · Advantage of ATC system ATC system using 8085 is very simple circuit. in the midst of guides you could enjoy now is Temperature Sensor Project Using 8085 Microprocessor below. 2022. The size of registers in microprocessors 80386 and 80586 has extended to 32-bits. The 8086 uses a 20-line address bus. LM35 sensor produces voltage corresponding to temperature. microprocessor-based system Mar 25, 2024 · The main principle of this circuit is to take the analog temperature values, convert them into digital values and display the digital temperature value om LCD or 7-Segment Display. monitoring an d controlling of water usage in the agriculture field using Internet Apr 24, 2023 · The 8086 microprocessor is an 8-bit/16-bit microprocessor designed by Intel in the late 1970s. Education Business Technology. It has a resolution of better than 0. An 8086 microprocessor is used to control the room temperature at 52-degree Fahrenheit. Typical sensors include devices like thermocouples, thermostats, RTD’s and semiconductor sensor. sensor, LM35 IC and 8086 based microprocessor system. In an ideal diode, the forward current through the PN junction can be expressed by Eq. It discusses the need for a traffic light system, describes the basic components including colors and signals. Apr 28, 2022 · The temperature control system required using 8086 microprocessors to interface a successive approximation ADC with a standard method of measuring and managing temperature. Microcontrollers are becoming the core engine for sensor-based systems in both industrial and commercial systems. Step 4: Final Implementation: ADD COMMENT. Then, the system act… Interface a LM 35 temperature sensor using Analog to Digital Converter (ADC) with 8086 microprocessor. Non-contact Temperature Sensor Types – These types of May 9, 2024 · ADC is among the widely used methods for temperature measurements. 8279 keyboard and display using 8086 8. Temperature Sensor Project Using 8085 Microprocessor 3 3 a journey to Microprocessor 8085, Peripheral Devices and Interfacing, AVR ATmega32, Interfacing of Input/Output Device. One way is to switch on the fan spontaneously. Write a program that reads the temperature every 3 minutes and shows the LED condition. After the system is implemented, microprocessor calculates temperature degree Celsius from the temperature sensor senses the room temperature. (using Assembly Language and Proteus) assembly temperature-control assembly-language assembly-language-programming temperature-controller assembly-8086 proteus 8086 8086-emulator 8086-architecture proteus-v7 proteus-v8 temperature-controlled-fan 2 Temperature Sensor Project Using 8085 Microprocessor 2021-11-11 multiplexers, de-multiplexers, devices for arithmetic operations, flip-flops and related devices, counters and registers, and data conversion circuits; up-to-date coverage of recent application fields, such as programmable logic devices, microprocessors, microcontrollers, digital It is the Heart of the system. You have remained in right site to start getting this info. Temperature Sensor Project Using 8085 Microprocessor 3 3 Description Book gives you a complete idea about the Microcontroller and Microprocessor. It works outside [23,32] degrees. The functional diagram of the 8086 microprocessor is shown in the below figure. It consists of 3 ports PORTA, PORTB and PORTC. Example - Minimum: 01H, Maximum: FFH In CMP instruction: If Accumulator &gt; Register then carry and zero flags are reset If Accumulator = Register then zero flag is set If Accumulator &lt; Register then carry flag is set Assumption - List Use Proteus circuit simulator to design an Intel 8086 microprocessor-based system that periodically reads from a temperature sensor, and activates a fan (DC or AC motor) when temperature reaches 50 degrees. The design of a microcontroller based control system is described from modeling to the control of the process. Input from port 03 to test the thermostat state. The Encardio Rite Model ETT-10V vibrating wire temperature meter is used for the measurement of internal temperature in concrete structures or water. A number of devices and schemes have been used over the years, for the measurement of temperature. (using Assembly Language and Proteus) . the speed should increase with a rise in temperature and should decrease with a drop in temperature. Jan 22, 2021 · Problem - Write an assembly language program in 8085 microprocessor to find maximum and minimum of 10 numbers. 6a) where, i s : is the saturation current. Jan 11, 2022 · Architecture of 8086 Microprocessor – Block Diagram & its Parts. Step 2 Determine the required status of Port A, Port B and Port C of 8255 for north to south traffic movement. If the incoming temperature Oct 1, 2020 · Connect the middle terminal to a LM-35 sensor to A1 (analog pin) of Arduino . Connect another lead of the LM-35 sensor to 5V. An electrical water heater is considered as the example process. Temperature Sensor Project Using 8085 Microprocessor Temperature Sensor Project Using 8085 Microprocessor Author: Helibert Weinfeld from deveequorg Subject: Temperature Sensor Project Using 8085 Microprocessor Keywords: 8085,temperature,project,using,sensor,microprocessor Created Date: 4/22/2023 11:28:46 AM. Electronic Voting Machine With Managed Control Unit Project Report Included Rickey S World Of Microcontrollers Microprocessors. Choose the virtual terminal from the instrument and connect to TXD and RXD pin of Arduino. In the physical world everything is analog, while today’s computers uses binary values, hence the ADC is used to convert temperature which is analogue, to digital value for easy operation with computers. This voltage is converted to digital (0 to 256) by ADC0804 and it is fed to 8051 microcontroller. 6a) which is known as the Shockley diode equation. It then covers the hardware details of the 8085-based system and interface board, including ICs used. Download and install the app on your PC. Feel Free to Contribute. Sep 9, 2017 · Top 45 Mini Projects For Beginners Project Ideas. Download now. With 20 address lines, it can access upto 2 20 = 1 MB of memory. When the difference between the target and current temperature is ≤ 5, this indicates that the heater has done its job and reaches the NORMAL STATE. Note: In modern 64-bit Intel processors, the registers are of 64-bits size which are RAX, RBX, RCX, and RDX. Design an 8086 microprocessor-based system to control a fan (DC Motor), a temperature sensor triggers the operation of the fan (DC Motor), the speed of the fan is related to temperature, as follows: Temperature Range Fan Speed 20 – 25 Low 25 – Consider a boiler in a petrochemical factory. An electric heater is used to heat-up the temperature of water Jun 26, 2015 · This circuit is developed using “ LM35 ”, a linear voltage sensor. LM35 is a temperature sensor which can measure temperature in the range of -55°C to 150°C. This figure displays the initialize output result “Digital Tempe Sensor” on LCD. UART using NUVOTON board. They will work with thermistors and thermocouples as well as 2-, 3- or 4-wire RTD temperature sensors. This book is a complete set of interview questions and answers with plenty of screenshots. Electrical Engineering. Others loggers use the USB interface but require a separate cable. Hi i am Haris Hussain i would like get details on Lm35 Temperature Sensor The temperature control system required using 8086 microprocessors to interface a successive approximation ADC with a standard method of measuring and managing temperature. There are many ways to reduce this heat. Untitled. Engineering. The data from the temperature sensor is analyzed by the microcontroller and transferred to a PC via RS232 link. The temperature to be displayed using two digits of 7-Segments 8086 microprocessor: It features an instruction queue that can keep six instruction bytes from memory, allowing it to process data faster. 2 muc is equal to that. Display is continuous, update is done at every one hour and weather parameters are sensed at regular intervals of 2 minutes. 619 kOhm, which comes from the max input voltage to the ADC which is 5V and the max output current of the sensor as 105 micro Amp. Aug 19, 2019 · In this paper, we introduce automatic temperature controller using DS18B20 digital temperature sensor and controller unit using PIC16F877A microcontroller with various useful and critical conditions. Launch the newly-installed app. Most of the people faces too much problems during implementing Sep 6, 2020 · About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright VIDEO ANSWER: q 1 is equal to 8 muc, 1 and q in this case. This sensor provides variable voltage at the output based on temperature. It will unquestionably ease you to look guide Temperature Jun 29, 2020 · Given binary input is shown in the 7SEG. The sensor is connected to port A in mode 0. This current was then passed on to a resistance of value 47. Data retrieval. In [23-32] degrees are the control fan motor doesn't working. What All Projects Can Be Made Using 8085 Microprocessor Quora. (4. In this project, 8255 is interfaced with 8086 microprocessor in I/O mode. Book also covers the descriptive questions, multiple-choice questions along with answers which are asked during an interview. System specifications: Use two digits of 7-Segments Dec 2, 2011 · Dec 2, 2011 • Download as PPTX, PDF •. A 220V heater derived by 12V relay and an NPN power transistor. Abu Kaisar. This circuit can sense relative humidity (RH) from 20% to 95% at an accuracy of 5%. Microprocessor based Temperature Controller - Download as a PDF or view online for free. This project is about a simple humidity sensor based on 8051 microcontroller. Model ETT-10V Vibrating Wire Temperature Sensor. Temperature measurement is of great importance in industry as most of the processes are temperature dependent. " VIDEO ANSWER: We're going to be looking at coding with an electronic device. The theory of regenerative braking is used to develop a control system for DC drives which is based on the operation of a four-quadrant switching circuit. It also has a high-temperature range 8051 based temperature sensor using a DS18B20. Lm35 can measure from -50 degree centigrade/Celsius up to 150 degree centigrade/Celsius. 4. The project report contains a detailed Sep 24, 2020 · How to Use: The heater and thermostat system is connected to Port 03. It has minimum circuitry. 11, microcontroller 8085 and assembly language programming, projects, ebooks and tutorials on microprocessors and About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright The short program, shown in Figures 14 and 15, written in the assembler language for Intel 8086 microprocessor presents how to keep a constant temperature using the heater and the thermometer [7]. Mode 0, Mode 1 and Mode 2 to control which ports are going to be input and output. The same circuit shown in the figure below in Proteus Software window. Please put a Readme. (SHOW the building of the design and the conectioons in proteus)Project:DC Motor Drive using 8086μpDesign an 8086 microprocessor-based system to control a DC Motor, a temperature sensor triggers the operation of the DC Motor, the speed of the fan is related to temperature, as follows:\table Feb 16, 2018 · It outputs 10mV for each degree of Celsius temperature. The output voltage of this 3-pin temperature sensor is directly proportional to the ambient temperature and is given by the formula: V out =K * T. Hence is a 16-bit microprocessor. DC Motor Drive using 8086 up Design an 8086 microprocessor-based system to control a DC Motor, a temperature sensor triggers the operation of the DC Motor, the speed of the fan is related to temperature, as follows: Temperature Range Fan Speed - Direction 20-25 Low- anticlockwise 25 - 30 Medium - clockwise 30 - 35 High-clockwise The temperature value displayed on the 7-segment display. The Macro is different from the Procedure in a way that unlike calling and returning the control as in procedures, the processor generates the code in Lm35 Temperature Sensor using Microprocessor 8086. ADC (Analog-to-Digital Converter), Interface with 8086, SOC Start of Conversion, EOC End of Conversion, ADC 0808 / 0809, Block Diagram, Pin Diagram, Successive Approximation ADC, Timing Diagram, ADC 0804, DAC0830 Block Diagram, Pin Diagram, Successive Approximation ADC, Timing Diagram, ADC 0804, DAC0830, R-2R Ladder, R-2R Ladder DAC Interface a LM 35 temperature sensor using Analog to Digital Converter (ADC) with 8086 microprocessor. 1°C and works similarly to that of Thermocouple Temperature Sensors. The system consists of 1. facebook. The LDR converts the light energy into electrical energy and this variable electrical energy was converted into digital signal (0 or 1) by using the timer IC555. It is the first member of the x86 family of microprocessors, which includes many popular CPUs used in personal computers. Here we want to take the double of the given input from the buttons if the toggle shows 1. The robot Jul 12, 2020 · Microprocessors is one of the basic course in Electrical/Electronics and Computer Engineering. It generates a current O/P of 1µA/K above absolute zero temperature that is -2730C. The ability to create a core platform and implement only low cost software and firmware-based changes for sensor applications has driven the rise in the availability and diversity of development boards. Arduino analog pin is used to read the analog output signals from the sensor. May 16, 2023 · Macro. The temperature sensor, connected to the address at 1436 h, measures the temperature in degree Celsius. Then this temperature is converted into ascii Jun 26, 2020 · To interface the ADC with 8085, we need 8255 Programmable Peripheral Interface chip with it. 2 likes • 3,502 views. The main aim of this project is to calculate and monitor the surrounding temperature and change the speed of the fan as temperature changes i. The system monitors weather parameters such as air temperature, humidity, barometric pressure and wind speed and displays the average over regular intervals of an hour on LCD display. Devices used in applications such as these are constantly decreasing in It is your utterly own become old to put on an act reviewing habit. 2 is the same as minus 4 mu c. Use Proteus circuit simulator to design an Intel 8086 microprocessor-based system that periodically reads from a temperature sensor, and activates a fan (DC or AC motor) when temperature reaches 50 degrees. To achieve that, it simultaneously recording the temperature using a potentiometer sensor. The aim is to explain the designing of a complete temperature control system from the first principles. Figure: 7 show the initialize result of the system. Facebook Page https://www. Many data loggers with an internal sensor are designed like a USB drive and will plug into a USB port on a computer for data download. Thus the size of the data bus is 16-bit as it can carry 16-bit data at a time. Here, 8051 and ATmega8 microcontrollers are used. Nov 18, 2022 · About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright Oct 3, 2020 · In this series, you will learn the Microcontroller programming In C Language and in Assembly Language. Guest Guest #1. Its temperature is measured every 3 minutes. com/Star-Technolog Electrical Engineering questions and answers. Send 80 to port 03 to turn the heater on. If we have a set up for the Arduino, we know that it's going to give us five volts into the LEDs. On the app's main page, in the "CPU" section, you'll see your CPU's overall temperature. If the 200 < temperature < 500ºC, a yellow led will turn on. guys 8*2=16 not 32 please check SET 1: Starting address = 00000H. 100+ Microcontroller Based Design an 8086 based microprocessor system that monitors the temperature of a room using a temperature sensor attached to an 8255 programmable IO port. This is why we present the book compilations in this website. 8254 timer using 8051 Microcontroller 9. 3. Dec 7, 2022 · 7 th December 2022. In our circuit we used 2 8255A devices, one of them is configured to make port a, b, c as an output ports and the other one The humidity sensor in the above circuit was modelled by a Voltage Controlled Current Source (VCCS) and the voltage was changed by using a potentiometer. The architecture of 8086 microprocessor, is very much different from that of 8085 microprocessor. The microprocessors 8086, 8088 and 80286 are 16-bit machines. It is another method for implementing modular programming in the 8086 microprocessors (The first one was using Procedures). It has VCC, GND and OUTPUT. emu8086 and Proteus Temperature Control. Contributions. ADC using NUVOTON board. Writing C code to implement temperature controller system on AVR ATMega128 (UNI-DS6 development board), Proteus 8 to simulate the system, which aims to keep the environment in a cool mode. 23-06-2021, 02:59 PM . The motor Mar 15, 2024 · A Temperature Controlled DC Fan is a system which automatically turns on a DC Fan when the ambient temperature increases above a certain limit. Citation preview. The project aims to design a Fire Alarm System based on the temperature. The 20 lines of the address bus operate in multiplexed mode. 17148/IARJSET. Mar 10, 2022 · Design and build a temperature sensor using the PIC16F877A microcontroller, an LM35 sensor and display the temperature value on a Liquid Crystal Display (LCD This project is all about controlling all parameters (temperature, pressure, humidity) using sensors, fans, thermistors through embedded circuit. Let us see the circuit diagram of connecting 8085, 8255 and the ADC converter. The temperature to be displayed using two digits of 7-Segments Displays. 26. The code snippet below is an incomplete solution to control the heater to keep the temperature steady at about 21 C. MQ-2 Smoke Sensor circuit with built in Analog to digital convertor (with logic 1 as output in case of presence of smoke else logic 0 is the output) The 8253 is used in Mode 2 as a rate counter where an interrupt is given to the 8086 microprocessor every 2 seconds. The PC 7 pin of Port C upper is connected to the End of Conversion (EOC) Pin of the analog to digital converter. The circuit diagram of the project is given below. 1/17/14 Microprocessor and microcontroller: Aseembly language programs: Temperature Control system using 8086 Share 0 More Next Blog» Create Blog Sign In Microprocessor and microcontroller: Aseembly language programs Interfacing microprocessors, 8086, MASM 6. 8086 Demo Board Using a PIC16F877 processor to control a PG12864F Graphical LCD Display. It starts from a very basic concept like a number system, then explains the digital circuit. 12. Question: An 8086 microprocessor-based temperature control system is to be designed. - Download as a PDF or view online for free. As 8085 microprocessor Memory used as stack memory ( when needed), we the programmer can store already all possible combination of data corresponding to the temperature in the memory stack. $$ i = i_ {s} (e^ {\frac {ve} {nkT}} - 1) $$. Microprocessor Based Temperature Controller. If the temperature <= 200ºC, a green led will turn on. A microprocessor-based control system for a DC motor, which uses standard hardware, is described. This system uses semiconductor sensor AD590 to monitor the temperature of water bath. The. This is q 1, and this is q 2 We have to find out if 8 plus minus 4 by 2 is equal to 4 by 2. LM35 is three pin transistor like device. Solved 8086 Microprocessor Projects Forum For Electronics. The 32-bit registers are only available in 80386 architecture and above. . analog. A Macro is a set of instructions grouped under a single unit. The system was designed with a new integrated circuit which contains a four-quadrant switching circuit and onboard control logic. To find each core's temp, then in the app's left sidebar, click "CPU. And it has 3 modes of operation. The 8086 (also called iAPX 86) is a 16-bit microprocessor chip designed by Intel between early 1976 and June 8, 1978, when it was released. The output voltage of this 3-pin temperature sensor is directly proportional to the ambient temperature and is given by the formula: You =KT Where K program, the temperature sensor reads the temperature every 10secs and compares it with the desired values. The AD590 is basically a PTAT (proportional to absolute temperature) current regulator. The temperature would be displayed through the LCD which is interfaced by the 8051 microcontroller. Once the measured value becomes higher than the desired value, the fan comes up with the required speed to cool the room as desired by the user. Temperature sensor using NUVOTON board 14. 8051 microcontroller converts this digital value into temperature in degree Celsius. This contains details about a mini-project temperature-controlled fan, using 8051 Micro Controller along with some additional electronic components like LM35 (temperature sensor), ADC0804, Motor Driver, and a DC Motor to replicate a fan. Revanth Reddy. SET size = Chip size x 2 = 8 KB x 2 = 32 KB. Generally, electronic devices produce more heat. Question: Use Proteus circuit simulator to design an Intel 8086 microprocessor-based system that periodically reads from a temperature sensor, and activates a fan (DC or AC motor) when temperature reaches 50 degrees. The Intel 8088, released July 1, 1979, is a slightly modified chip with an external 8-bit data bus (allowing the use of cheaper and fewer supporting ICs), and is notable as the processor used in the original IBM PC design. Thus at 00C the current O/P will be 273µA and 250 if will be 298µA and 373mV at 1000. The requirement is that the system has to read the sensor data every 15 second and compare with the old data. Connect one lead of the LM-35 sensor to GND. 11. ABSTRACT. The PortA of 8255 chip is used as the input port. Ending address = Starting address – SET size = 04000H– 03FFFH = 07FFFH Ending address = Starting address – SET size = 04000 H – 03 F F F H = 07 F F F H. Temperature Sensor Project Using 8085 Microprocessor 2022-11-07 SIENA ABBEY Monthly Catalogue, United States Public Documents EFY Enterprises Pvt Ltd Semiconductor sensors May 18, 2023 · Pin diagram of 8086 microprocessor is as given below: Intel 8086 is a 16-bit HMOS microprocessor. Thermometer Project In Emu8086. Keywords: Microprocessor; Circuits; Temperature; Thermistor; | DOI: 10. Send 00 to port 3 to turn the heater off. They can be used to detect solids, liquids or gases over a wide range of temperatures. The humidity information is displayed on a 16×2 LCD display. The 16-low order address bus lines have been Contact Temperature Sensor Types – These types of temperature sensor are required to be in physical contact with the object being sensed and use conduction to monitor changes in temperature. Thermometer project in assembly language. Seven segment display using NUVOTON board. In this project, It can be controlled the temperature on any room-place using with emulator 8086. The driving circuit is connected to port A (Aa) of an 8255 interfacing chip 2- A temperature detection circuit that consists of an LM 35 temperature sensor and comparator Jun 30, 2021 · This paper presents the development of a sensor based smart irrigation system w ith the capabilities of remote. “LM35” sensor provides output based on scale of centigrade. 8255 PPI using 8086 5. So are considering that I'm leads. Humidity sensor is also called hygrometer. ( 4. ui zt qx cg dd iy lm np xo nb