ESP-01S WiFi CAT bridge for the Kenwood TS-440S transceiver. Provides wireless CAT control via TCP for use with rigctl, WSJT-X, and other amateur radio software.

• TCP Bridge - Port 7373 for rigctl/WSJT-X/flrig compatibility
• Web Interface - Browser-based frequency and mode control
• OTA Updates - Update firmware over WiFi
• WiFiManager - Easy WiFi configuration via captive portal
• mDNS - Access via ts440-bridge.local

• ESP-01S (1MB flash)
• MAX3232 level shifter
• Kenwood TS-440S with IF-232C interface

ESP-01S TX  ->  MAX3232 TTL RX  ->  IF-232C RX
ESP-01S RX  ->  MAX3232 TTL TX  ->  IF-232C TX

1. Install the Arduino IDE with ESP8266 board support
2. Install required libraries:
   • WiFiManager
   • ESP8266WiFi (included with board package)
   • ESP8266WebServer (included with board package)
   • ESP8266mDNS (included with board package)
   • ArduinoOTA (included with board package)
3. Open TS440S_WiFi_CAT_Bridge.ino
4. Select board: Generic ESP8266 Module
5. Upload to ESP-01S

Default settings in the sketch:

1. Power on the ESP-01S
2. Connect to the TS440-Setup WiFi network
3. Configure your WiFi credentials in the captive portal
4. The device will restart and connect to your network

Navigate to http://ts440-bridge.local or the device's IP address to access the web interface for manual frequency and mode control.

Configure your software to use:

• Rig: Kenwood TS-440S (or Hamlib rigctl)
• Connection: Network
• Address: ts440-bridge.local or IP address
• Port: 7373

• FA - Frequency (read/write)
• MD - Mode (read/write)

All other Kenwood CAT commands are passed through transparently via the TCP bridge.

MIT License