KD8CEC v1.097 Beta will be released shortly

Ian KD8CEC has been busy again in conjuring up new features in his CEC firmware.   He is tempting us with descriptions of two new features:

  • Nextion display update that makes it easy to adjust keying speed and to select the keyer type (Iambic A, Iambic B or Straight Key) even while in TX
  • Adding an additional arduino, connected to the Raduino via i2c, to provide an S-meter function.

The first feature is well explained by the photo above. The second feature is a bit more difficult to describe.   By adding a US$3 additional arduino the µBITx now has double the number of analogue and digital ports and another 32K of program space.   This could be a fun ride!  The first function is a basic one, but an important one.   A much more sensitive S-meter.   But wait there’s more, as yet to be fully described.  If you already have a Nextion screen, it looks like you may be in line for a half decent signal analyser function.

Connecting up the arduino

The circuit is pretty straight forward, and involves just a couple of resistors and a capacitor, along with wiring to +5v and ground, and the two i2c lines.

Leave a Reply

Your email address will not be published. Required fields are marked *