toggle quoted messageShow quoted text
I have serious visual issues such as color blindness and limited
depth perception. I am not visually blind, although I am only
about 50 points above legal blindness in my left eye (20/150). I
would be very happy to promote and spread this Ubitx and get it in
the hands of a few friends of mine who ARE totally blind.
I've made many modifications to my uBITX to make it accessible
to visually impaired ham radio operators. I've also "field
tested" the breadboarded prototype with a local ham radio
operator who is blind, and I received great feedback from him.
The main differences are the addition of a keypad and a voice
synthesis module, plus major refactoring and modification of the
original sketch from VU2ESE.
I documented everything with the intention that others could
easily reproduce this variation of the uBITX. It is my hope
that folks will take this work and build one for a local ham who
The hardware modifications, my heavily modified Arduino sketch,
plus photos, videos, and a user's guide, can all be found on
The software is done, unless bugs are found. There are only
about 400 bytes of program memory available.
My next step is to mount this into a "real" enclosure. I'm just
starting to build enclosure mock-ups.
I'm also evaluating existing circuits for "speaker pop" and AGC,
and better heat sinking of the IRF510s.
I'm interested in hearing from anybody who attempts to build
this variation of the uBITX.
73 de Andy