Rotator module version 3.1

This revision is from 2014/04/24 20:40. You can Restore it.

Components of Multi rotator controller server

Version 3.1 in addition to the 3.0 version only circuit to stabilize the voltage measured azimuth - AREF compensates for slight decrease voltage at relay switching, so there is no need of external power supply to measure the azimuth.

Activate this function with insert analogReference(EXTERNAL); to arduino code before analog_az = analogRead(rotator_analog_az); in master .ino file

    analogReference(EXTERNAL);
    analog_az = analogRead(rotator_analog_az);

Circuit diagram

Planting plan

Part list

P1,P2	strip 9 pins
P3,P4	strip 13 pins
P5	pin array_3x2
R4,R6,R7,R8	k510 ohm
S1,S2,S3	tact led sw
U1	LCD-16x2
U3	Preset encoder
C1,C2,C3,C4	capacity 4n7
CON1	pin array 5x2
D1,D2,D3,D4	diode 1n4148
J1	DB15 female connector
L1,L2	inductor 100uH
R1,R2,R3,R5	resistor 1k
RV1	potentiometer 1k
U2	ArduinoNano3.0
P6	pin_array_3x2
RL1,RL2,RL3	Relay
Q1,Q2,Q3	transistor BC547

Rotator (DB15 female) and power inputs connector

Phase jumper (5+6 CON1) change relay function between DC (change phase voltage) and AC (change direction).

Pin 3 in CON1 - input 5V stabilized voltage from power board This pin may be connected with pin4 CON1, then the voltage measurement uses a common 5V voltage from the power supply module.

The entire module can be powered from USB only, but there is a voltage drop, it is better to use an external source, or a DC/DC converter.