6x2 Antenna switch control

Front side

• LCD - shows selected antenna - first line Input/Output 1, second line Input/Output 2
• MENU - light button. For activate press button more than 0,5 second. Green light signals if manual control activate.
• ENCODER - rotary encoder primary move cursor, after activate MENU you can select antenna outputs manual or back activate BCD inputs.

Rear side

• DC POWER - input jack 5,5/2,1 mm size for DC power between 12-14 Volts. Same Power on pin8 ANT outputs.
• ETHERNET - OPTIONAL module for controlled switch manual over simple web page.
• microSD - not implemented.
• BCD IN - band data inputs activate two levels, dependency to JP8 jumper
• HIGH - TTL voltage input
• LOW - grounded input (contains own 1k pull up resistor)
• PTT TRX - grounded activate input PTT from transceiver (contains own 1k pull up resistor)
• PTT PA - PTT continues from TRX to this output for power amplifier. If detect collision between inputs band, this output will be deactivate.
• ANT - six outputs, will be in two levels dependency to preset JP1 and JP2 jumper. Also 12V DC power and ground available.
• ULN if use internal driver ULN2803A - open collector 500 mA each outputs
• UDN if use internal source 12V power driver UDN2580A.

Left side

• From the left side is accessible USB mini connector from Arduino NANO, which is usable for upload new firmware.

LCD contrast

• with potentiometer RV1 - near left side LCD module

Inputs BCD Levels

• JP8 to HIGH - activate BCD inputs with TTL signal level (1k ohm pull-down resistor).
• And uncoment line in firmware

  #define inputHigh          // enable input High level (default)

• JP8 to LOW - activate BCD inputs to ground (1k ohm pull up resistor).
• And coment line in firmware

  //#define inputHigh          // enable input High level (default)

Outputs Antenna switching

This jumper must be set dependency to used U4 and U7 IO chip - do not change before change chip!

ULN - for ULN2803A open collector driver - switching antenna relay with grounded outputs.

UDN - for UDN2580A source 12V power driver - switching antenna relay with 12V power outputs.

Upload

• upload via mini USB connector on left side enclosure
• with preset
• Board: "Arduino Nano"
• Processor: "ATmega328"
• if enable Ethernet
• download ethernet2 library https://github.com/adafruit/Ethernet2
• find and open file Dhcp.h and replace line

  from
    int beginWithDHCP(uint8_t *, unsigned long timeout = 60000, unsigned long responseTimeout = 5000);  
  to
    int beginWithDHCP(uint8_t *, unsigned long timeout = 6000, unsigned long responseTimeout = 5000);

Configure firmware

• Description antennas - show on LCD and web page

  char* ant[] = {
    "All OUT off",  // <-- do not change this line
    "160m Vert.",
    " 80m Dipole",
    " 40m Moxon",
    " 30m Dipole",
    " 20m 2x 5el",
    " 10m 4x 6el",
    "M-off->BCD",  // <-- do not change this line
  };

• Inputs
• JP8 to HIGH - activate BCD inputs with TTL signal level (1k ohm pull-down resistor). And uncoment line

  #define inputHigh          // enable input High level (default)

• JP8 to LOW - activate BCD inputs to ground (1k ohm pull up resistor). And coment line

  //#define inputHigh          // enable input High level (default)

#define Inputs      6      // number of antenna used ** not implemented **
#define Ports       2      // number of - IN/OUT pair devices and LCD lines (support from 2 to 4)
#define LCDculumn  16      //
#define inputHigh          // enable input High level (default)
//#define serialECHO       // enable TX echo on serial port
#define SERBAUD    9600    // [baud] Serial port baudrate
//#define EthModule          // enable Ethernet module
#define __USE_DHCP__                    // Uncoment to Enable DHCP       <-----------
IPAddress ip(192, 168, 1, 220);         // IP
IPAddress gateway(192, 168, 1, 200);    // GATE
IPAddress subnet(255, 255, 255, 0);     // MASK
IPAddress myDns(8, 8, 8, 8);            // DNS (google pub)
EthernetServer server(80);              // server PORT

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