Once you get the board, connect your Morse key or the output from your electronic keyer to PIN 0 and GROUND. The sidetone output is connected between PIN 1 and GROUND and goes to an amplified speaker or your computer’s sound card input. In my prototype, I used a 3.5 mm mono jack for both.

 

Starting with firmware 1.3 (20241028), MORCONI has an internal keyer. Connect the paddle DOT to PIN 0, DASH to PIN 3, 25KOhmm linear pot for the keyer speed control to GROUND, 3.3V, and A9. (ref. PINOUT picture). The internal keyer emulates standard IAMBIC, Curtis A, Curtis B (Accukeyer), CMOS SuperKeyer (Logikeyer), and ULTIMATIC.

The Logikeyer intervention time-by default 33% of a dash- can be set in the config file. (Keyer LogiFactor).

The KeyerKFactor config parameter (milliseconds) compensate for the Transceiver relay delay, this is different from the weight, it is independent from the speed.

 

Starting with firmware 1.4 (20241104) PIN 4 can be used to drive a LED or an Optocoupler following the CW being transmitted, PIN 5 follows the CW transmission but in a reverse way (low while transmitting, high while not transmitting) and PIN 6 turns high when there is an active connection.

 

Starting with firmware 1.6, MORCONI can be controlled by logging and contesting applications over the serial RTS or DTR control lines.

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Firmware Version 1.7 adds four memory buttons, URL lookup, and many improvements to the code.

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Edit the MORCONI.CFG file (self-documented) and change the IP address of the radio to match your radio (local network or remote router exposing the API port of your radio). For now, you can leave everything else with default values. Save the file on a microSD card and insert it into the Teensy slot. Connect the Teensy to your computer, run the Teensy.exe uploader, search for MORCONI.INO.HEX, and upload it to the microprocessor.

 

Turn on the radio, run SmartSDR, and if everything went well, you’ll hear a 40WPM/600HZ  “C” sent from the speaker. The internal LED, which was ON and RED, indicating no connection to the radio, will turn OFF, and you should be in business.

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If the radio disconnects or SmartSDR closes, MORCONI will send a 40WMP/600Hz “D”.