Empower speech with AssistiveTech

In the past week, I have built up the new touch PCB, the processor PCB and the voice board as a complete system.

Initial results are that it works well, has good sensitivity with no cross-talk like the first prototype touch PCB. There may still be an issue with false activations that needs further work.

The video shows it working as a board out of the case, with some random phrases recorded, and then in the case (with some very dodgy sticking together)

Here is the case design with interchangeable finger guides

This is the second revision of the capacitive touch PCB, where I have made the guard rings much thinner and not a closed loop. On the other side of the board, I have removed the ground plane from behind each capacitive touch area. 

Fingers crossed it performs more reliably than the first after reading the datasheet a second time.

Side note: I am dyslexic and find reading large amounts of text extremely difficult, along with spelling correctly. As such you are likely to see numerous mistakes in my writing. I can't tell you how much I rely on #Assistivetech to help me with reading through read-aloud plugins on the computer, and spell checkers. 

The first version of the capacitive touch board has major sensitivity issues, where it is false triggering in some areas and not triggering at all in others.
To experiment, I ground sections of the capacitive pads away as shown in the following video. This gave a significant improvement so off to PCB ways to get revision 2.