This is a CI-V Connector for Wavelog that can be running on an ESP32 developer board.

• ESP 32 board
• 3,5 mm jack plug
• some wire
• diode
• 1x 4k7 resistor
• 1x 10k resistor

On the image above you see a prototype built on a perforated grid circuit board.

Schematics.pdf

This connects via CI-V to your Icom Transceiver (e.g. IC-7300) on the 3,5 mm jack plug port. From there it reads following measurements:

• Working frequency
• Working mode
• Working rf-power-level

This values are transported to the radio hardware API of Wavelog (Cloudlog also works) and there this data can be used for logging purpose.

Also this CI-V Connector is presenting a rudimentary XML-RPC service on port 12345 to be used by CloudLogOffline by DL9MJ - you will find this at https://github.com/myzinsky/cloudLogOffline

To have this working properly, you need to have your transceiver in "transceive = on"-mode for CI-V. Also it should be configured for 19200 baud on the serial output (not on USB-port!).

First time you start this code (or every time until your local WiFi-network is configured, the ESP32 starts up with an ad-hoc-wlan with the name "Wavelog_CI_V_AP" and the pre-shared key 12345678 to connect to the ESP32 in order to configure the production WiFi-network it should connect to.

This is done by connecting to this WiFi-network with a client (phone, tablet, notebook, pc) and open the configuration site http://192.168.4.1 to chose your network to use. Enter your PSK and then the ESP32 connects to your WiFi. It should optain an ip-address in your LAN via DHCP and would listen on the new ip-address with a configuration dialog.

On this dialog you configure the URL of your wavelog installation (for example http://wavelog.dg9vh.de) and the API-endpoint (for example /index.php/api/radio). Also the Wavelog API Key is needed beneath the CI-V address of your transceiver (for example 0x94 for an IC-7300).

Save this and be ready to rumble :-)

From now on every change of one of the parameters mentioned above this would be transported to your wavelog instance via the API to be available for logging.

Some parts of this code (for example fundamentals of the CI-V-communication) where taken from Patric (DF7ZZ) and his "Antennenumschalter ESP32"-code. So thank you Patric for your inspirations!