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hello friends,
I want to interface XBEE RF module with 8051.. but XBEE works at 3.3V & the output of 8051 is 5V.
how do i reduce the voltage to 3.3V???
The data sheet of XBEE module says,
Transmit current(typical) = [email protected]…
If at all v reduce the voltage to 3.3V using LM1117 v get output of 3.3V at a current of 800mA.
can this voltage & current value be given to input of XBEE to transmit???
will the current rating of 800mA burns the XBEE module??
please help me out friends…
Dont worry it won’t.
Your LM117 is capable of sourcing a maximum current of 800mA at 3.3V, that dosen’t mean it will always source that much current. It will give only that much current which the load requires. In your case your Xbee module need only 45mA amd hence only that much current will be sourced to the Xbee module.
i just want to know in simple words how can i connect zigbee module with 8051. is there any need of (MAX 232 /MAX 3232) for serial communication between 8051 and zigbee .
or i can connect directly zigbee with 8051
dear sir ,
i am a final year student and i had chosen touch screen based restaurant ordering system as my final year project..i tried to do as using pic microcontroller but i cant find its burner,,so i am going to do using 8051….so could u send me its circuit daigram aswell as coding in c…plz help me…am having trouble in it,,,
Hi Buddha,
I wonder why you are not able to get a burner for PIC. You can even make your own burner also for PIC.
Here is one example
http://www.circuitvalley.com/2011/05/microchip-pic-serial-port-programmer.html
You can also try to purchase online, costs less than 300 INR.
I can’t give you a ready made code or circuit, but will surely help you to make your own. Please share more details.
dear sir,
yes we can find burner in market but as i am a student and i could not afford it… i am using with 8051 microcontroller for my project…so tell me ,,how to interface 4-wire touchscreen ,gigbee,glcd with 8051 microcontroller..as icould not find touchscreen and zizbee in proteous…and i would need to simulate it in proteous…help me plz…
dear sir,
i am making pic burner for my project and does this burner work for pic16f877a…and there is no pic in keil so i could not convert code into hex…so tell me the compiler for pic16f877a microcontroller and could u send me the datasheet of 4- wire touchscreen,gigbee,glcdand pic16f877a microcontroller…
Hi Buddha,
Please don’t waste your time using any simulation software. Always try to do things in real hardware.
The link for the programmer circuit which I’ve posted is an ISP programmer and it will work with all the PIC microcontrollers which supports ISP programming including 16F.
I can send you the datasheet of any touchscreen or Xbee, but what if the same product is not available in your local market?? I suggest you to purchase the hardware first and then google it with its part number to find the exact datasheet, or simply post the part number here and I will search for the details.
dear sir,
firslty thanks for helping me sir…firstly tell me that how to interface 4-wire resistive touch screen and glcd with pic16f877a microcontroller,,,interfacing xbee with pic16f877a microcontroller….does we need touchscreen driver for touchscreen to interface with microcontroller…
Hi,
The concept of resistive touchscreen interface is very simple. The four wires are normally
1) VCC
2) GND
3) VX
4) VY
Connect VCC and GND and connect VX (Volatge of X cordinate) to one ADC channel and VY (Voltage of Y cordinate) to another ADC channel. Read the values one after the another which will give you the X and Y cordinate of the touch.
Xbee can be simply connected to the serial port, normally at a baud rate of 9600 or 4800.
Please explain what are your doubts regarding Xbee interfacing?
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