How do I control 2 servos with 1 switch (using 555 timers)?
Currently I am working on a project that requires 2 servos to move in opposing directions; going from 0º to 180º on one and 180º to 0º on the other. After looking at the useless machine instructable, I decided that 2 555 timers attached to 1 DPDT toggle switch (ON-ON) would work best, however I need help with the exact resistance and capacitance values for the resistors.
To get the servo to be at 0º (technically -90º) it needs a 1ms pulse every 20ms. To get it to go to 180º (technically 90º) it needs a 2ms pulse every 20ms. The servos run off of a max of 5V, so I am going to be using 3 AA or AAA for 4.5V.