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hi all m designig a system in which i am using atmel microcontroller an adc and opamp stage. the problem is that when i run the system and operate a mobile in front of it the system hangs...wht to do to prevent this ?
Dear all
i am designing a temperature controller with input range from
-8.825mV to 54.8mV . i have designed a opamp circuit in which i get a particular ouput volatge say 3.1volts. furthur i have to give this input to the adc and to 8051.
now my problem is when i test the output of the...
hi
i am designing a temperature controller in which i have 8051 and eeprom .i want to save the negative value in the eeprom.how to do i.please help me out
thanks
Re: Circuit Ideas
I think yousafzai wasn't able to correctly post the message. Here's it....
1 Second Time Base From Crystal Oscillator
The schematic below illustrates dividing a crystal oscillator signal by the crystal frequency to obtain an accurate (0.01%) 1 second time base. Two cascaded...
use simple resistor divider network with 1:2 ratio. u'll have to use very high wattage resistors, (depending on current required). or use 12 regulator of current rating as required by u.
16f876a lcd
dear all
iwant to interface a lcd 2X 16 line hd44780 with pic16f876a using HITECH C .i am not able to get anything written on the screen. can any one please provide me the right code.
hi ravi
these days m also working on the same project of heater control
i need to ask u two questions
1. is this the integral part of pid control method?
2.if yes, the how to control proportional and derevative part of PID thru software for heater control.
please help me out.
Added...
Alarm System design
u want a simple circuit or u want circuit based om microcontroler . i have both of them.in micrcocontroller based u can add code number for security system u r building. it is easierand safest method
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