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Recent content by vvarlord

  1. vvarlord

    atmega8 and l298n supply

    well ,haven't thought about it this way if it doesn't bring up limited frequency issues , it would save 4 muxs really appreciate your help
  2. vvarlord

    atmega8 and l298n supply

    i'm runnig two motors and in matter of fact when you want to control two motor and give them the reverse capability,you have to be able to turn the two poles of each motor but when you use one of the two pwm pins of micro, as an input of l298n to control the motor,you will only be able two run...
  3. vvarlord

    atmega8 and l298n supply

    in your case , i need 4 pwm lines but atmega8 has only 2 lines.
  4. vvarlord

    atmega8 and l298n supply

    the muxes are used to make the motor run reverse,when needed the 4 number is also for,being able to reverse each motors seperatly the diodes are used ,and i think it would be a matter of broken l298 IC haven't cheked it yet,but will do as soon as possible. tnx all of you for replies
  5. vvarlord

    l298 and atmega8 problem

    hi enable pins and gnd rails are checked micro stops working, pwm stops,and it no longer respond to any input
  6. vvarlord

    l298 and atmega8 problem

    i have a circuit that uses pwm of atmega 8 and the power bridge of l298n ,to power a dc motor but when i connect the vs voltage of l298n ,the micro stops working i used even used seperete power supplys but the same result any help would be appreciated
  7. vvarlord

    atmega8 and l298n supply

    i just added the 470uf and 10uf capacitors and it takes longer before it stops working but the problem still exists any other suggestion?
  8. vvarlord

    atmega8 and l298n supply

    here's the schematic by the way,tnx ffor your assitance
  9. vvarlord

    atmega8 and l298n supply

    i just ran the circuit with a 12v 1.2A output adaptor,still the same
  10. vvarlord

    atmega8 and l298n supply

    i use 8 rechargeable 1.5v batteries,i don't think the problem is the current of supply of voltage
  11. vvarlord

    atmega8 and l298n supply

    i'm using atmega 8 for creating a pwm for a 12v motor the pwm goes to input of a l298n and the corresponding output goes to motor atmega works with a 5v,and i use a 7805 which its input is 12v for the logic supply of l298n i use the same with atmega and when i use a seperate 12v supply for the...
  12. vvarlord

    how to build an ultra sonic sensor using ultrasonic dectors

    i'm working on a project to implement a distance to an obstacle sensor using a 2pin ultarsonic transmitter and a 2pin ultrasonic reciever and an atmega 8 i don't know what to start with how to make the transmitter and reciever get working? should i just connect them to micro or a circuit is...
  13. vvarlord

    simulink serial send problem

    hi i use serial send block in matlab and for its input i've put a constant block everything works fine except when i put the value of constant block 9 or 10 or....13 every other nubmer is recieved successfully,but when this data are put in constant block nothing is sent what's the reason ? tnx...
  14. vvarlord

    Matlab _micro serial connection

    tnx for your reply i've made a mistake i do not use the matlab workspace i use simulink i want to save a vector of recieved data and send it serially by order again it's somehow like this,which i recieve data serially change some of it to parallel & then send all the parallel data by order ,serially
  15. vvarlord

    Matlab _micro serial connection

    i've written a c code for my atmega 8 which communicates with PC over serial com port the connection is ok, i have check the data recieve and sent on both side on PC side i use matlab to send and recieve data now i just wanted to know that is it possible to save a pattern of recieved data? for...

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