IC-705 IP Interface

Functionality

• WiFi AP mode with Setup html form available on address http://ic705.local

  

• Connecting the IC-705 via Bluetooth and sending the frequency to MQTT

• Frequency and mode for Óm - simple contest PHP log available on http port 81 (address http://ic705.local:81)

  

• UDP port 89 receives ascii characters, which it sends via Bluetooth to the IC-705, and transmit them as a CW message*

• UDP port 89 receives ascii characters, which it sends in RTTY mode by keying FSK and PTT TRX inputs

  

• Status LED

  • Fade in/out - WiFi in AP mode
  • WiFi in client mode
    • ON waiting connected to WiFi
    • OFF Wifi connected to AP
    • FLASH send MQTT freq
    • DOUBLE FLASH receive CW via UDP
    • FLASH+PTT receive RTTY via UDP

• mDNS - to easily find IP devices in the network, using the command "ping ic705.local"

• Watchdog - resets the device after more than 73 seconds of inactivity

• Output signal POWER-OUT (13.8V/0.5A) with LED activates after connecting BT (can turn on your hamshack)

• Galvanically isolated CI-V output for connecting PA or other devices

  

• CIV-MUTE on gpio16 allow send to CI-V output only commands with frequency (not debug messages)

• UDP port for CAT command (clear RIT) from log

• After BT connect, set TRX to enable: CI-V transceive + enable RIT + enable BK-IN

• Support external shift register control switch by frequency (not tested)

• Detect PCB hardware ID

• Power consumption < 1W

PCB

• Schematic rev3 PDF
• BOM rev3 html

3D prit case

• Source rev3 OpenScad
• rev3 STL
• rev3 3MF
• With mountpoint rev3 STL
• With mountpoint rev3 3MF

Block diagram

Connectors pinout

• 13,8V DC jack
• KEY stereo jack
• SEND/ALC stereo jack
• USB-C
• ACC RJ45

Configure

• In head of .ino file
  • Variables
  • You can disable non use functionality with add // before #define ..

Compile and upload

1. Install Arduino IDE rev 1.8.19
2. Install support for ESP32
3. Install these libraries in the versions listed

• BluetoothSerial rev 2.0.0
• WiFi rev 2.0.0
• PubSubClient rev 2.8

1. Select board 'ESP32 Dev Module'
2. Select Partition Scheme: 'No OTA (2MB APP/2MB SPIFFS)'
3. Connect the ESP32 with a USB-C cable and select the corresponding port in the arduino IDE
4. Now you can compile and upload code using USB

Connect and debug

• Open terminal in Arduino IDE
• Set Baudrate to 9600
• Press ? and Enter
• Read IP address from terminal debug

Find IP adress

• Turn on the interface
• Wait for the Status LED to turn off, which signals the Wifi connection
• In the terminal window, use the command ping ic705.local - the output will show the IP address that the interface received from the DHCP server