Sending PWM signal for servo

Discussion in 'General Electronics Chat' started by mohiuddin1111, Jul 9, 2013.

  1. mohiuddin1111

    Thread Starter New Member

    Apr 28, 2013
    24
    0
    Fellas,
    again here for some help.
    I am gonna buy three srevos just for experimental/fun purpose.
    I would use a 555 timer chip to control servo position. this below>

    [​IMG]

    is this ok?
    Please be aware that it is my first .

    Now the main problem is , how can i transmit the PWM signal from the transmitter using the very known chip tx2/rx2.

    here is the datasheet for tx2/rx2 >>
    http://www.jbprojects.net/projects/wifirobot/TX2RX2.doc

    or for quick pinout >>
    [​IMG]

    now, can someone please tell me how can i transmit the pwm signal for servo??
     
  2. Dodgydave

    Distinguished Member

    Jun 22, 2012
    4,979
    744
    I dont think it will allow you to input an external pwm signal, it uses a built in oscillator and alter the pulses forward or reverse depending on the input pins selected, both the transmitter and receiver have to have the same frequency of osc.

    Datasheet
     
    Last edited: Jul 9, 2013
  3. mohiuddin1111

    Thread Starter New Member

    Apr 28, 2013
    24
    0
    Man,
    i know they need to be of same frequency defined by OSC resistor.
    but, please see the datasheet SC/SO pin on tx2 IC and SI pin on rx2.
    Can i use these to send the PWM ?
    or simply right/left/forward/back/turbo pin to send it ( if those can switch on/off at less than 1ms) ?
     
  4. mohiuddin1111

    Thread Starter New Member

    Apr 28, 2013
    24
    0
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