leonardo46
Italy
Asked
— Edited
Resolved by DJ Sures!
very trivial question . I have received the ezb today.Never used it. I found no information saying if power plug is center pin positive or not , and if the voltage of my 6V Ni-MH battery is ok for internal voltage regulator of its controller .It will My servos require no more than 6 V. thamks for your help
What model Hitecs do you have? I have many in my inMoov (805bbs and 645s) both have no problem doing 180... There are a few Hitec models that do not do a full 180 rotation...
I have HS805BB , HS5805MG, and HS5745MG . They all exceed 180 degrees if driven by an adequate PWM pulse, and might reach both mechanical ends. I can't achieve that with EZB builder.
The ezb pwm is calibrated for ezrobot servos which adhere to standard servo specifications. Due to other manufacturers not adhering to servo standards, you may experience incompatibilities. Contact your servo manufacturer and have them fix their servos.
The HS-805bb and HS-805MG are 180deg servos only (I use them in my inMoov). I have no issues with them as far as rotation. That is they both do pretty much 180 deg with ezb servo commands... I certainly get more than 140, that's for sure...
Hi DJ. I have seen your link to servo standards, and the waveforms shown there.
they give 0.61 ms (1),1,48ms (90°),2,38(180°) I have instead: 0.56 ms (1),1.340 ms(90),2.140ms(180) i attach here an oscilloscope image from EZB set to 180, and I get 2.140 ms. 2.38 would be ok, but EZB can't rise over 2,140 ms.
The link you may be referring to displays the values recorded on a v3. The values you are displaying on the v4 are correct.
the V3 would have been better . Its pulses were good for hitec. Hitec is a leader in servos, and I think they know industry standards. I don't understand why V4 has all pulses so short, shorter than V3. For example, the (1) pulse is too short (0.56 ms) for all servos I know.
Richard, which EZB do you have ? V3 or V4 ?