Question about voltage

[fontas]

I am going to create a CAN network with pic18f4585 and some temperature sensors.I am going to use to kind of sensors ( 5V and 3.3V ) ..
The microcontroller supports 5voltage

Am I going to face a problem , with different voltages ??

Moreover , in order to represent the results is it possible with C++ or should I use a software ? Any idea about which software ?

Regards

 

[tarekegypt]

please need some notes
what the type of the sensor?is it a thermocouple
and what is the output voltage for a certain 1 celezious degree?]
and is it linear or not?

you will need a signal conditioning circuit and a software (you may need a table if the sensor is not linear)

thanks

 

[fontas]

It is the TC72 microchip sensor

https://ww1.microchip.com/downloads/en/DeviceDoc/21743a.pdf

I think it is not thermocouple neither linear

 

[kender]

I am going to create a CAN network with pic18f4585 and some temperature sensors.I am going to use to kind [two kinds?] of sensors ( 5V and 3.3V ) ..

It is the TC72 microchip sensor

h**p://ww1.microchip.com/downloads/en/DeviceDoc/21743a.pdf

OK, that's one kind. It works on +5V lust like your PIC. You shouldn't have a problem with it (just don't forget the pull-up resistors on the I2C bus). What's the second kind or sensor?

 

[fontas]

The other kind is the same sensor exactly , but with the difference that it works on 3.3Voltage !!!
Am I going to face problems due to difference voltage between the pic and the sensor ??
Moreover I am going to use to SPI interface not I2C .Should I use buffer to my code ??

thanks a lot for the interest

 

[sohail_akram]

any body has i2c codes

 

[sresam89]

I am going to create a CAN network with pic18f4585 and some temperature sensors.I am going to use to kind of sensors ( 5V and 3.3V ) ..
The microcontroller supports 5voltage

Am I going to face a problem , with different voltages ??

Moreover , in order to represent the results is it possible with C++ or should I use a software ? Any idea about which software ?

Regards

@fontas

SIR are you done with the project, if so can you help me with the same.

 

[HTA]

The analog signals comming from the sensors should not be a problem for the ADC of the micro, but might require adaptation to the optimum analog voltage range. The logic I/O-signals you might need a level shifting. For the interfacing of the microcontroller to the industrial environment, you might find useful hints here: iC-Haus Homepage - Welcome