As long as the input signal is a square wave signal the end of a 50HZ and then control the duration of high pulse signal cycle can control the speed and reversing and stalling. High pulse duration of a corresponding one of the speed. High level of 1 ms - 1.5 ms, steering gear forward (1 ms forward the fastest, the slower the closer to 1.5 ms, 1.5 ms steering stops), the high level of 1.5 ms to 2 ms When the servo reversing (1.5 ms steering stops, the closer the faster reverse speed of 2 ms, 2 ms fastest reversal).

Wiring methods:

Can be seen from the figure, a total of three servo wires: red lines, black lines, white lines.

① red line is the positive power supply, then 5-6v DC power positive.

② black wire to the negative supply.

③ white wire to the signal input, which is above that of the signal input line 50HZ.

 The steering gear with a median adjustment potentiometer (to pry open the shell to see the board), debugging can be high at 1.5 ms pulse setting to observe whether the steering stops, if kept turn on adjustment potentiometer is, so far has been to stall, thus completing zero.

The purpose of the median zero: the one of the plurality of servo speed pulse width consistent.

 

Servo Model used: DS04-NFC
Weight: 38g
Dimensions: 40.8 x 20 x 39.5 mm
Torque: 5.5kg/cm (at 4.8V)
Speed: 0.22sec/60 ° (at 4.8V)
Operating voltage: 4.8v-6v
Operating temperature: 0 ℃ -60 ℃
Current: <1000mA