Hi,Bought a few of these last week and if they test well we'll be buying lots more. What is the input voltage max operational spec? I know it says 5 - 7.4 V above, but I thought th...

Hi there,
which module can i use to trigger the motion of the servo? ideally if there are potentiometers to adjust end point would be perfect.
Also another requirement is to accept up 15 volts if possible. If there is no such option i would gladly discuss the option of a custom made one

For others who are looking for more accurate information. I found that copying and pasting description from the Chinese version of the DFRobot to Google translate works well.

https://www.dfrobot.com.cn/...

Mechanical properties
Size: 40mm×20mm×40.5mm
Mass: 65g
Mechanical rotation angle range: 180°
No-load speed: 60°/0.16s (7.4v)
Locked-rotor torque: 19.3kg.cm (7.4v)
Dynamic torque: 15.1kg.cm (7.4v)
Gear: Steel and copper hybrid gear
Protection device: 2 special copper sleeves
Standard metal rudder disc and two steering gear brackets

Electrical characteristics
Power supply voltage: 5v-7.4v
Locked-rotor current: 3A (@8.5V--limit test)
PWM signal voltage: 3v-5v
Electric rotation angle range: 200°
Electrical rotation angle resolution: 2us
PWM signal resolution: 50-330hz
PWM signal positive pulse width range: 400us-2550us
Minimum value of negative pulse width of PWM signal: 400us

Hi,

I don't get it - it says in the specs above that the PWM drive frequency is 4 kHz, which means the period is 250 us. Then it says
"

Range of PPM positive pulse width:400us-2550us
"
... so the minimum positive pulse length is longer than the total period? How does that make sense? I feel like some of those specs must be wrong; can you please correct me or give the correct specs? Thanks.