Cy-401

hank van buren

Any one knows the input criteria for the Futaba CY-401 gyro I want to use a Basic stamp instead of the r/c transmitter ? thanks Hank van Buuren

glaso

The RC gyros "correct" the length of the input pulse. For example, in an helicopter the gyro compensate the yaw rate changing the length of the pulse of the servo that control the tail rotor. You need an RC signal as an input of the gyro, for example 1.5 ms. Then if the gyro is not moving, the output pulse will be of 1.5 ms, and if you turn the gyro, the length of the output pulse will increase or decrease depending on the direction of the rotational movement.

In other words, you have to use the same sero signals as it were no gyro between the source signal and the servo.

If you want to measure the rate of rotation of the gyro you will need to create the signal with another circuit, because the stamp can't create the servo signal ans measure the gyro output at the same time. For that purpose you can use a sefvo controller or an astable vibrator based an a 555 IC.