Rotator module version 3.2

Components of Multi rotator controller server

Circuit diagram

Planting plan

Part list

Main and LCD PCB two PCB
C1,C2,C3,C4,C5, C6 capacitor 4n7
D1,D2,D3,D4 diode 1n4148
L1,L2 inductor 100uH
R1,R2,R3,R5 resistor 1k
R9 resistor 4k7
R4,R6,R7,R8 resistor 510R
RV1 potenciometer 1k
Q1,Q2,Q3 transistor BC547
S1,S2,S3 LED switch
RL1,RL2,RL3 Relay
U1 LCD 16X2
U3 preset encoder with knob
J1 DB15-F + DB15-M
CON1 pin array 5x2
P2+P1, P3+P4 strip 9+13 pins 90°
P5 pin array_3x2
P6, JP1 pins + jumper
U2 Arduino nano 3.0 + socket

✔ All components

❏ Solder R4 R6 R7 R8 (marked in blue)

❏ 13 and 9 pins 90° strip

❏ 16 pins strip to LCD

❏ Insulating spacer washers between LCD and PCB

❏ LCD module to PCB

❏ CW, CCW and START switch (marked in blue) and preset encoder, Now front panel is final

❏ Next R1 R2 R3 R5 (marked in black) and R9 solder on main board

❏ D1 D2 D3 D4 (marked in red)

❏ L1 L2 (marked in green)

❏ Q1 Q2 Q3

❏ C1 C2 C3 C4 C5 and C6

❏ 6 pins of brake sw, Inputs connector, R9, DIL cocketfor Arduino NANO

❏ F15 connector, three relay, Arduino nano

❏ last solder front panel via pin strip

❏ after power up, preset LCD contrast with potentiometer RV1

Single unit enclosure

Assembly instructions


For beginners Getting Started with Arduino

You can configure firmware from master tree Arduino firmware by K3NG

Or download preconfigured version

Please read author documentation


The entire module can be powered from USB only, but there is a voltage drop, it is better to use an external +5V source, or a DC/DC converter and cut the power to the attached USB cable.

Pin 3 in CON1 (+5 volts input to supply measure the azimuth)- input stabilized voltage from power board This pin may be short connected (as picture below) with pin4 CON1 (+5 volts to interface), then the voltage measurement uses a common 5V voltage from the power supply module.

Connect DC Rotator (DB15 female) and power inputs

  • Need three jumper
    • short DC position P6 jumper switch
    • short JP1 jumper
    • short PHASE-SW (center) position CON1
  • connect example
    • Yaesu G800
      pin DB15      G800 unit
           1+2  ->  5
           3+4  ->  4
            15  ->  1
            14  ->  2
           GND  ->  3

Connect AC Rotator (DB15 female) and power inputs

Diagram for the common AC and +5V ground

Diagram for the different AC and +5V ground