Mortty’s behavior is determined by the program (“sketch” in Arduino-speak) that runs on Mortty’s Arduino Nano. W1HKJ’s nanoIO Dual-Mode Sketch supports both CW and RTTY operation using fldigi.K0SM’s TinyFSK keying via widely supported RTTY FSK protocol.K3NG’s CW Keyer emulates the widely supported Winkeyer v23 protocol.Mortty software and operating modes – choose one of three pre-installed programs:.See Appendix 4 of the manual for details. However… Mortty v4 includes an AUX I/O feature for an external device – like a sidetone speaker. For CW – No macro pushbuttons, no speaker.What’s missing from this miniature design?.Flash upgradeable and software reconfigurable.Small, lightweight, portable for mobile, Field Day and back-country treks.Standalone (no PC required) CW Keying with inexpensive USB battery pack (not included).Two radio SO2R operation with CW Keyer/N1MM+.Dual-mode CW and RTTY with fldigi and nanoIO.Simple Plug & Play installation and operation. AUX I/O feature for CW sidetone or a pushbutton or ?. Four status LEDs – power, PTT, CW-radio1 or TinyFSK, CW-radio2 or nanoIO FSK.The output end has a CW speed pot four LEDs for power, push to talk (PTT), Radio 1 and Radio 2 transmit and a 3.5mm TRRS output jack that provides PTT, CW and FSK signals to your transceiver.Ĭompare the Mortty v4 CW and RTTY Keyer to the Competition: The input end has a USB mini-B jack to connect a computer and a 3.5mm TRRS jack to connect a CW paddle. This tiny box measures only 2 inches long and 1 inch square (50mm by 25mm). Unlike full-featured – and more expensive – hardware solutions for CW and RTTY keying that are widely available to amateurs, Mortty is an inexpensive solution that depends upon the configuration and control features incorporated in popular logging and control programs. Mortty v4 is a fully assembled and tested keying solution that provides a miniature enclosure and a computing platform for three freeware keying programs: K0SM’s TinyFSK RTTY Keyer, K3NG’s CW Keyer, or W1HKJ’s nanoIO dual mode program.
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