Hi,
not a big issue, but maybe someone can help me out. I got 3 of those blue SG90 servos, when i connect them to the flipper they jitter and wiggle even when they are supposed to stand still. Moving them/sweep works, but also with lots of jitter. I looked up causes of that and found several answers, from RF interference to unstable power/pwm. I tried to wrap the cable around a ferrite ring to balance impedance, shorten the cable to have less extern influx, tried a capacitor to filter noise..all to no real noticable difference. When i probed the the pwm signal with an oscilloscope i see a wobbly sqarewave. Trying the signal generator app on the flipper with pwm i get a pretty much stable squarewave. Im out of ideas what im doing wrong or how i could less the jitter. Those are cheap servos, i know..but i would rather like to use them in some stupid mini projects then to turn them into e-waste. Any ideas what i could try?
Hi,
not a big issue, but maybe someone can help me out. I got 3 of those blue SG90 servos, when i connect them to the flipper they jitter and wiggle even when they are supposed to stand still. Moving them/sweep works, but also with lots of jitter. I looked up causes of that and found several answers, from RF interference to unstable power/pwm. I tried to wrap the cable around a ferrite ring to balance impedance, shorten the cable to have less extern influx, tried a capacitor to filter noise..all to no real noticable difference. When i probed the the pwm signal with an oscilloscope i see a wobbly sqarewave. Trying the signal generator app on the flipper with pwm i get a pretty much stable squarewave. Im out of ideas what im doing wrong or how i could less the jitter. Those are cheap servos, i know..but i would rather like to use them in some stupid mini projects then to turn them into e-waste. Any ideas what i could try?