T41EEE.93 Arduino Firmware Released

A new version of T41EEE is released here:

https://github.com/Greg-R/T41EEE

T41EEE.93 adds an iambic keyer. This keyer is loosely based on this project:

https://github.com/ve3wmb/SimpleCWKeyer

The iambic keyer state machine in this project is very clever and efficient. However, there were a lot of changes required to make it work with the T41 way of transmitting CW. After a long and winding path to get there, it seems simple.

The iambic keyer is selected from the CW Options menu, under “Key Type”.

The other change is to the way that the Morse decoder interacts with the display. Instead of using a long print statement, it is now using the “BTE” (Block Transfer Engine) to scroll the decoded Morse across the screen.

There was a bit of code clean up and some very minor bugs were resolved in addition to the above two changes.

73 Greg KF5N