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Help me with a project which interfaces temperature and pressure sensors to 8051

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vattipalli

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hi,
actually my project is to interface temperature and pressure sensors to 8051 micro controller and transfer data using zigbee transceiver, but my guide told me to add some more sensors to 8051. can anyone help me regarding what sensors i can use... it is an industrial automation application.
 

Re: need help in project

What kind of project is it BIO medical, Industrial, etc .......? Specify clearly so that we can suggest proper sensor for your project.
 

Re: need help in project

hi shivaram,
it is an application of industrial automation ...such as reading temperature and pressure from a boiler..etc
 

Re: need help in project

Use Fire sensor (Using LDR or 555 timer circuit ), Intruder sensor(using IR), use a buzzer to indicate any danger, Use stepper motor to open and close the gate or use GSM to send message to owner or police station in case of emergency.
 
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Re: need help in project

u can connect humidity sensor with ur project. i 8051 code use can insert a temp comparing system i.e if current temp is higher than thresold then there will be some alarm or another system that decrease current temp of system.but 8051 is not suitable for these type project because i think u have to use some external adc like ADC0808 etc which increase design complexity. try to use ATMEGA avr series controller with built in ADC
 

I think atmega8 has six channel adc input , easy to interface with sensors . your pcb and hardware size will increase if you use 8051+0808+sensors .you said you want to use as industrial purpose better to use ptc type sensor you must know the max boiler temperature first while selecting temperature sensor
 

Hi,
Yes, I think you should use a microcontroller with in-built ADC. Since I use the ATMEGA, I would advocate that. A PIC will do as well though. In this way, you reduce your circuit complexity. Since you brought up "industrial", check the max temperature of the boiler and then, maybe you could use the PT-100. If your temperature was below 150'C, you could use the LM35. For pressure sensor check the MPX4115 and see if it will serve your purpose.

Hope this helps.
Tahmid.
 
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what about a smoke sensor?
 

hi,
i am using c8051f930 controller which has inbuilt temperature sensor....my prob is what other sensors i can interface.....give some idea...
 

k, thank u finally iam using a humidity, water level indicator, temperature , pressure sensors.....
 

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